International Energy Agency. An Updated Roadmap to Net Zero Emissions by 2050. https://www.iea.org/reports/world-energy-outlook-2022/an-updated-roadmap-to-net-zero-emissions-by-2050 (2022).

International Renewable Energy Agency. Renewable Capacity Statistics 2026. https://www.irena.org/Publications/2026/Mar/Renewable-capacity-statistics-2026 (2026).

Jones, L. E. (ed.) Renewable Energy Integration: Practical Management of Variability, Uncertainty, and Flexibility in Power Grids 2nd edn (Academic Press, 2017). This foundational volume provides a practical system-level account of how flexibility enables power grids to manage variability and uncertainty from renewable generation.

Drax Group. Electric Insights Quarterly Reports, Tag: Q4 2024, https://reports.electricinsights.co.uk/?tag=q4-2024 (2024).

Qu, M. et al. Prolonged wind droughts in a warming climate threaten global wind power security. Nat. Clim. Change 15, 842–849 (2025). This study provides global evidence that prolonged wind droughts pose an energy-security challenge, motivating firm capacity and longer-duration flexibility.

Article 

Google Scholar
 

Australian Energy Regulator. Prices Above $5,000/MWh — July to September 2025. https://www.aer.gov.au/publications/reports/performance/prices-above-5000mwh-july-september-2025 (2025).

Drax Group. Electric Insights Quarterly Reports, Category: Q1 2025. https://reports.electricinsights.co.uk/?cat=61/ (2025).

The Behaviouralist. Behavioural Insights for Electricity Demand Flexibility: Barriers and Enablers to Behaviour Change and Engagement with Smart Energy Services. https://www.seai.ie/behavioural-insights-electricity-demand-flexibility (2025).

Babatunde, O. M., Munda, J. L. & Hamam, Y. Power system flexibility: a review. Energy Rep. 6, 101–106 (2020).

Article 

Google Scholar
 

Bolwig, S. et al. Review of modelling energy transitions pathways with application to energy system flexibility. Renew. Sustain. Energy Rev. 101, 440–452 (2019).

Article 

Google Scholar
 

Impram, S., Nese, S. V. & Oral, B. Challenges of renewable energy penetration on power system flexibility: a survey. Energy Strat. Rev. 31, 100539 (2020).

Article 

Google Scholar
 

International Energy Agency. Status of Power System Transformation 2018 — Advanced Power Plant Flexibility. https://www.iea.org/reports/status-of-power-system-transformation-2018 (2018). This authoritative report explains how technical and operational modifications can increase power-plant flexibility in systems with growing shares of variable renewables.

Le Coq, C., Bennato, A. R., Duma, D. & Lazarczyk, E. Flexibility in the Energy Sector. Centre on Regulation in Europe (CERRE). https://cerre.eu/wp-content/uploads/2025/05/CERRE-Report_Flexibility_Final.pdf (2025).

Papaefthymiou, G. & Dragoon, K. Towards 100% renewable energy systems: uncapping power system flexibility. Energy Policy 92, 69–82 (2016). This influential study reframes high-renewable integration as a system-flexibility challenge and identifies opportunities to unlock flexibility across the power system.

Article 

Google Scholar
 

D’Ettorre, F. et al. Exploiting demand-side flexibility: state-of-the-art, open issues and social perspective. Renew. Sustain. Energy Rev. 165, 112605 (2022). This comprehensive review integrates the technical, economic and social dimensions of demand-side flexibility and identifies major barriers to wider participation.

Article 

Google Scholar
 

Chicco, G., Riaz, S., Mazza, A. & Mancarella, P. Flexibility from distributed multienergy systems. Proc. IEEE 108, 1496–1517 (2020).

Article 

Google Scholar
 

Li, Y. et al. Artificial intelligence-based methods for renewable power system operation. Nat. Rev. Electr. Eng. 1, 163–179 (2024).

Article 

Google Scholar
 

Riaz, S. & Mancarella, P. Modelling and characterisation of flexibility from distributed energy resources. IEEE Trans. Power Syst. 37, 38–50 (2021). This study develops a systematic framework for modelling and characterizing flexibility from heterogeneous distributed energy resources.

Article 

Google Scholar
 

Mlecnik, E. et al. Policy challenges for the development of energy flexibility services. Energy Policy 137, 111147 (2020).

Article 

Google Scholar
 

Ejuh Che, E., Roland Abeng, K., Iweh, C. D., Tsekouras, G. J. & Fopah-Lele, A. The impact of integrating variable renewable energy sources into grid-connected power systems: challenges, mitigation strategies, and prospects. Energies 18, 689 (2025).

Article 
CAS 

Google Scholar
 

Baruah, P. J. et al. Energy system impacts from heat and transport electrification. Proc. Inst. Civ. Eng. Energy 167, 139–151 (2014).


Google Scholar
 

Clegg, S. & Mancarella, P. Integrated electrical and gas network flexibility assessment in low-carbon multi-energy systems. IEEE Trans. Sustain. Energy 7, 718–731 (2016). This work establishes a quantitative framework for assessing how coupling electricity and gas networks can expand whole-system flexibility.

Article 

Google Scholar
 

Ozturk, M. & Dincer, I. A comprehensive review on power-to-gas with hydrogen options for cleaner applications. Int. J. Hydrog. Energy 46, 31511–31522 (2021).

Article 
CAS 

Google Scholar
 

Hennig, F. Dunkelflaute: oder Warum Energie sich nicht wenden lässt (FinanzBuch Verlag, 2017).

Staffell, I. et al. Wind droughts show the need for low-carbon flexible generation. Electric Insights Quarterly: October to December 2024. https://reports.electricinsights.co.uk/?p=2314 (2025).

California Independent System Operator. Current and Forecasted Demand. https://www.caiso.com/todays-outlook/demand (accessed 31 August 2026).

California Independent System Operator. What the Duck Curve Tells us About Managing a Green Grid. https://www.caiso.com/Documents/FlexibleResourcesHelpRenewables_FastFacts.pdf (2016).

Zhang, C., Ding, Y., Nordentoft, N. C., Pinson, P. & Østergaard, J. FLECH: a Danish market solution for DSO congestion management through DER flexibility services. J. Mod. Power Syst. Clean Energy 2, 126–133 (2014).

Article 

Google Scholar
 

International Energy Agency. The Netherlands 2024 Energy Policy Review. https://www.iea.org/reports/the-netherlands-2024 (2025).

International Energy Agency. Electricity Grids and Secure Energy Transitions. https://www.iea.org/reports/electricity-grids-and-secure-energy-transitions (2023).

Bevrani, H. et al. Power system frequency control: an updated review of current solutions and new challenges. Electr. Power Syst. Res. 194, 107114 (2021). This review synthesizes modern frequency-control approaches and the emerging challenges created by declining synchronous inertia and increasing renewable penetration.

Article 

Google Scholar
 

Chown, G., Wright, J. G., Van Heerden, R. P. & Coker, M. System inertia and rate of change of frequency (RoCoF) with increasing nonsynchronous renewable energy penetration. In Proc. 8th Southern Africa Regional Conf. (Cigré, 2017).

Mehrzad, A. et al. Inertia in renewable power systems: a review of estimation methods and practical implementation. Renew. Sustain. Energy Rev. 226, 116246 (2026).

Article 

Google Scholar
 

Murray, W., Adonis, M. & Raji, A. Voltage control in future electrical distribution networks. Renew. Sustain. Energy Rev. 146, 111100 (2021).

Article 

Google Scholar
 

Micallef, A., Spiteri-Staines, C. & Licari, J. Voltage regulation in low voltage distribution networks with unbalanced penetrations of photovoltaics and battery storage systems. IET Smart Grid 7, 264–276 (2024).

Article 

Google Scholar
 

Licari, J., Staines, C. S., Micallef, A. & Hoppert, S. Experimental validation of a low-voltage regulator model — a case study of a Maltese low-voltage feeder. IET Renew. Power Gener. 18, 679–689 (2024).

Article 

Google Scholar
 

Xu, Y. et al. A review of resilience enhancement strategies in renewable power system under HILP events. Energy Rep. 9, 200–209 (2023).

Article 

Google Scholar
 

Xu, L. et al. Resilience of renewable power systems under climate risks. Nat. Rev. Electr. Eng. 1, 53–66 (2024). This review synthesizes climate-related threats to renewable power systems and the strategies required to strengthen system resilience.

Article 

Google Scholar
 

Red Eléctrica de España. Península — Seguimiento de la demanda de energía eléctrica. https://demanda.ree.es/visiona/peninsula/demandaau/total/2025-04-29 (2025).

Lannoye, E., Flynn, D. & O’Malley, M. Evaluation of power system flexibility. IEEE Trans. Power Syst. 27, 922–931 (2012). This seminal study develops quantitative metrics to assess whether available resources can meet changing system ramping requirements.

Article 

Google Scholar
 

Xie, H., Sun, X., Chen, C., Bie, Z. & Catalao, J. P. S. Resilience metrics for integrated power and natural gas systems. IEEE Trans. Smart Grid 13, 2483–2486 (2022).

Article 

Google Scholar
 

International Energy Agency. Net Zero by 2050: A Roadmap for the Global Energy Sector. https://www.iea.org/reports/net-zero-by-2050 (2021).

Ahmed, I., Rehan, M., Basit, A. & Hong, K.-S. Greenhouse gases emission reduction for electric power generation sector by efficient dispatching of thermal plants integrated with renewable systems. Sci. Rep. 12, 12380 (2022).

Article 

Google Scholar
 

Kaygusuz, K. Hydropower as clean and renewable energy source for electricity generation. J. Appl. Eng. Sci. 5, 359–369 (2016).


Google Scholar
 

Karimanzira, D., Schwanenberg, D., Allen, C. & Barton, S. Short-term hydropower optimization and assessment of operational flexibility. J. Water Resour. Plan. Manage. 142, 04015048 (2016).

Article 

Google Scholar
 

Zahedi, R. et al. Development of a new simulation model for the reservoir hydropower generation. Water Resour. Manage. 36, 2241–2256 (2022).

Article 

Google Scholar
 

Signore, S. R., Hadjerioua, B., Smith, B. T. & O’Connor, P. Context, Capabilities, Constraints, and Costs for the Provision of Ancillary Services by Hydropower Assets. Report No. ORNL/SPR-2019/1295. https://info.ornl.gov/sites/publications/Files/Pub131176.pdf (Oak Ridge National Laboratory (ORNL), 2019).

Somani, A. et al. Hydropower’s Contributions to Grid Reliability and Resilience. Report No. PNNL-30554. https://www.pnnl.gov/main/publications/external/technical_reports/PNNL-30554.pdf (Pacific Northwest National Laboratory, 2021).

International Energy Agency. Hydropower Special Market Report: Analysis and Forecast to 2030. https://www.iea.org/reports/hydropower-special-market-report (2021).

International Renewable Energy Agency. Renewable Power Generation Costs in 2024, https://www.irena.org/Publications/2025/Jun/Renewable-Power-Generation-Costs-in-2024 (2025).

Bassano, C., Deiana, P., Vilardi, G. & Verdone, N. Modeling and economic evaluation of carbon capture and storage technologies integrated into synthetic natural gas and power-to-gas plants. Appl. Energy 263, 114590 (2020).

Article 
CAS 

Google Scholar
 

Eveloy, V. & Gebreegziabher, T. A review of projected power-to-gas deployment scenarios. Energies 11, 1824 (2018).

Article 

Google Scholar
 

Howarth, R. W. A bridge to nowhere: methane emissions and the greenhouse gas footprint of natural gas. Energy Sci. Eng. 2, 47–60 (2014).

Article 
CAS 

Google Scholar
 

Hanson, E., Nwakile, C. & Hammed, V. O. Carbon capture, utilization, and storage (CCUS) technologies: evaluating the effectiveness of advanced CCUS solutions for reducing CO2 emissions. Results Surf. Interfaces 18, 100381 (2025).

Article 
CAS 

Google Scholar
 

Net Zero Teesside Power. Greenlight for Net Zero Teesside Power. https://www.netzeroteesside.co.uk/news/greenlight-for-net-zero-teesside-power/ (2024).

International Energy Agency. The Role of CCUS in Low-carbon Power Systems. https://www.iea.org/reports/the-role-of-ccus-in-low-carbon-power-systems (2020).

National Renewable Energy Laboratory. 2024 Annual Technology Baseline (ATB) Cost and Performance Data for Electricity Generation Technologies. https://data.openei.org/submissions/6006 (2024).

Schmitt, T. et al. Cost and Performance Baseline for Fossil Energy Plants, Vol. 1:Bituminous Coal and Natural Gas to Electricity. Revision 4A, Report No. DOE/NETL-2023/4320. https://www.osti.gov/biblio/1893822 (National Energy Technology Laboratory, 2022).

Bragg-Sitton, S. M. et al. Flexible Nuclear Energy for Clean Energy Systems. National Renewable Energy Laboratory (NREL), Report No. NREL/TP-6A50-77088. https://www.cleanenergyministerial.org/content/uploads/2022/06/flexiblenuclear-energy-for-clean-energy-systems-2020.pdf (2020).

Nøland, J. K., Hjelmeland, M., Tjernberg, L. B. & Hartmann, C. The race to realize small modular reactors: rapid deployment of clean dispatchable energy sources. IEEE Power Energy Mag. 22, 90–103 (2024).

Article 

Google Scholar
 

Jenkins, J. D. et al. The benefits of nuclear flexibility in power system operations with renewable energy. Appl. Energy 222, 872–884 (2018).

Article 

Google Scholar
 

Michaelson, D. & Jiang, J. Review of integration of small modular reactors in renewable energy microgrids. Renew. Sustain. Energy Rev. 152, 111638 (2021).

Article 

Google Scholar
 

Lazard. Lazard’s Levelized Cost of Energy + (LCOE+). https://www.lazard.com/research-insights/levelized-cost-of-energyplus-lcoeplus/ (2025).

Energy Solutions. Small Modular Reactors 2026: Nuclear Economics & Global Deployment. https://energy-solutions.co/articles/sub/small-modular-reactors-smr-nuclear-future (2026).

Gebreegziabher, T. et al. Design and optimization of biomass power plant. Chem. Eng. Res. Des. 92, 1412–1427 (2014).

Article 
CAS 

Google Scholar
 

Kung, K. S. et al. Start-up, shutdown, and transition timescale analysis in biomass reactor operations. Energy 248, 123448 (2022).

Article 
CAS 

Google Scholar
 

Panos, E. & Kannan, R. The role of domestic biomass in electricity, heat and grid balancing markets in Switzerland. Energy 112, 1120–1138 (2016).

Article 

Google Scholar
 

Thornley, P., Gilbert, P., Shackley, S. & Hammond, J. Maximizing the greenhouse gas reductions from biomass: the role of life cycle assessment. Biomass Bioenergy 81, 35–43 (2015).

Article 
CAS 

Google Scholar
 

Rezaei, M., Sameti, M. & Nasiri, F. Biomass-fuelled combined heat and power: integration in district heating and thermal-energy storage. Clean Energy 5, 44–56 (2021).

Article 

Google Scholar
 

Ricks, W., Voller, K., Galban, G., Norbeck, J. H. & Jenkins, J. D. The role of flexible geothermal power in decarbonized electricity systems. Nat. Energy 10, 28–40 (2025). This study quantifies the system value of operating geothermal generation flexibly in deeply decarbonized electricity systems.

Article 

Google Scholar
 

Horne, R. et al. Enhanced geothermal systems for clean firm energy generation. Nat. Rev. Clean Technol. 1, 148–160 (2025).

Article 

Google Scholar
 

Hameer, S. & Van Niekerk, J. L. A review of large-scale electrical energy storage. Int. J. Energy Res. 39, 1179–1195 (2015).

Article 

Google Scholar
 

Hesse, H. C., Schimpe, M., Kucevic, D. & Jossen, A. Lithium-ion battery storage for the grid — a review of stationary battery storage system design tailored for applications in modern power grids. Energies 10, 2107 (2017).

Article 

Google Scholar
 

Divya, K. C. & Østergaard, J. Battery energy storage technology for power systems — an overview. Electr. Power Syst. Res. 79, 511–520 (2009).

Article 

Google Scholar
 

Islam, M. M. et al. Improving reliability and stability of the power systems: a comprehensive review on the role of energy storage systems to enhance flexibility. IEEE Access 12, 152738–152765 (2024).

Article 

Google Scholar
 

McKerracher, C. New record lows for battery prices. BloombergNEF. https://about.bnef.com/insights/clean-transport/new-record-lows-for-battery-prices/ (2024).

Yang, W. et al. Pumped storage hydropower operation for supporting clean energy systems. Nat. Rev. Clean Technol. 1, 454–473 (2025). This review provides a comprehensive assessment of pumped-storage hydropower operation and its contribution to multi-timescale flexibility in clean energy systems.

Article 

Google Scholar
 

Rehman, S., Al-Hadhrami, L. M. & Alam, M. M. Pumped hydro energy storage system: a technological review. Renew. Sustain. Energy Rev. 44, 586–598 (2015).

Article 

Google Scholar
 

Nikolaos, P. C., Marios, F. & Dimitris, K. A review of pumped hydro storage systems. Energies 16, 4516 (2023).

Article 
CAS 

Google Scholar
 

Li, P. et al. Unlocking potential contribution of seasonal pumped storage to ensure the flexibility of power systems with high proportion of renewable energy sources. Renew. Energy 218, 119280 (2023).

Article 

Google Scholar
 

Viswanathan, V. et al. 2022 Grid Energy Storage Technology Cost and Performance Assessment. Report No. PNNL-33283. https://www.energy.gov/cmei/2022-grid-energy-storage-technology-cost-and-performance-assessment (Pacific Northwest National Laboratory, 2022).

Schmidt, O., Melchior, S., Hawkes, A. & Staffell, I. Projecting the future levelized cost of electricity storage technologies. Joule 3, 81–100 (2019). This study provides a widely used learning-based framework for comparing the future levelized costs of electricity-storage technologies.

Article 

Google Scholar
 

Burian, O. & Dančová, P. Compressed air energy storage (CAES) and liquid air energy storage (LAES) technologies — a comparison review of technology possibilities. Processes 11, 3061 (2023).

Article 

Google Scholar
 

Rabi, A. M., Radulovic, J. & Buick, J. M. Comprehensive review of compressed air energy storage (CAES) technologies. Thermo 3, 104–126 (2023).

Article 

Google Scholar
 

Vecchi, A., Li, Y., Ding, Y., Mancarella, P. & Sciacovelli, A. Liquid air energy storage (LAES): a review on technology state-of-the-art, integration pathways and future perspectives. Adv. Appl. Energy 3, 100047 (2021).

Article 

Google Scholar
 

Lund, H. & Salgi, G. The role of compressed air energy storage (CAES) in future sustainable energy systems. Energy Convers. Manage. 50, 1172–1179 (2009).

Article 

Google Scholar
 

Kheshti, M. et al. Liquid air energy storage for ancillary services in an integrated hybrid renewable system. Renew. Energy 199, 298–307 (2022).

Article 

Google Scholar
 

Alamri, B., Hossain, M. A. & Asghar, M. J. Electric power network interconnection: a review on current status, future prospects and research direction. Electronics 10, 2179 (2021).

Article 

Google Scholar
 

Thellufsen, J. Z. & Lund, H. Cross-border versus cross-sector interconnectivity in renewable energy systems. Energy 124, 492–501 (2017). This study directly compares cross-border interconnection and cross-sector coupling as complementary strategies for integrating high shares of renewable energy.

Article 

Google Scholar
 

Anbumozhi, V. & Bhupendra, K. S. (eds) Cross-Border Integration of Renewable Energy Systems: Experiences, Impacts, and Drivers. https://doi.org/10.4324/9781003433163 (Routledge India, 2024).

Unger, E. A., Ulfarsson, G. F., Gardarsson, S. M. & Matthiasson, T. The effect of wind energy production on cross-border electricity pricing: the case of western Denmark in the Nord Pool market. Econ. Anal. Policy 58, 121–130 (2018).

Article 

Google Scholar
 

Puka, L. & Szulecki, K. The politics and economics of cross-border electricity infrastructure: a framework for analysis. Energy Res. Soc. Sci. 4, 124–134 (2014).

Article 

Google Scholar
 

MacIver, C., Bell, K. R., Adam, G. P. & Xu, L. Electrical interconnectors: market opportunities, regulatory issues, technology considerations and implications for the GB energy sector. Energy Strategy Rev. 38, 100721 (2021).

Article 

Google Scholar
 

Mott, M. A Comparison of Electricity Transmission Technologies: Costs and Characteristics. Institution of Engineering and Technology. https://www.theiet.org/impact-society/sustainability-and-climate-change/iet-electricity-transmission-technologies-report (2025).

Palensky, P. & Dietrich, D. Demand side management: demand response, intelligent energy systems, and smart loads. IEEE Trans. Ind. Inform. 7, 381–388 (2011).

Article 

Google Scholar
 

Strezoski, L. Distributed energy resource management systems — DERMS: state of the art and how to move forward. WIREs Energy Environ. 12, e460 (2023).

Article 

Google Scholar
 

Taft, J. D. & Ogle, J. P. Grid Architecture Guidance Specification for FAST-DERMS. Report No. PNNL-31172. https://gridarchitecture.pnnl.gov/media/Grid_Arch_Guidance_for_FAST%20DERMS.pdf (Pacific Northwest National Laboratory, 2021).

International Energy Agency. Scaling Up Demand Flexibility: From Peak Management to Efficient System Operation. https://www.iea.org/reports/scaling-up-demand-flexibility (2026). This report provides a global roadmap for scaling demand flexibility from conventional peak management to efficient system-wide operation.

Golmohamadi, H., Golestan, S., Sinha, R. & Bak-Jensen, B. Demand-side flexibility in power systems, structure, opportunities, and objectives: a review for residential sector. Energies 17, 4670 (2024).

Article 

Google Scholar
 

Zhou, B. et al. Smart home energy management systems: concept, configurations, and scheduling strategies. Renew. Sustain. Energy Rev. 61, 30–40 (2016).

Article 

Google Scholar
 

Issi, F. & Kaplan, O. The determination of load profiles and power consumptions of home appliances. Energies 11, 607 (2018).

Article 

Google Scholar
 

D’hulst, R. et al. Demand response flexibility and flexibility potential of residential smart appliances: experiences from large pilot test in Belgium. Appl. Energy 155, 79–90 (2015).

Article 

Google Scholar
 

Alrumayh, O. & Bhattacharya, K. Flexibility of residential loads for demand response provisions in smart grid. IEEE Trans. Smart Grid 10, 6284–6297 (2019).

Article 

Google Scholar
 

Tsybina, E., Winstead, C., Ollis, B., Olama, M. & Kuruganti, T. Demand response for frequency regulation: research continuity and knowledge gaps. Renew. Sustain. Energy Rev. 207, 114958 (2025).

Article 

Google Scholar
 

Shi, W., Li, N., Xie, X., Chu, C.-C. & Gadh, R. Optimal residential demand response in distribution networks. IEEE J. Sel. Areas Commun. 32, 1441–1450 (2014).

Article 

Google Scholar
 

Nowbandegani, M. T., Nazar, M. S., Shafie-khah, M. & Catalão, J. P. Demand response program integrated with electrical energy storage systems for residential consumers. IEEE Syst. J. 16, 4313–4324 (2022).

Article 

Google Scholar
 

Gjorgievski, V. Z., Markovska, N., Abazi, A. & Duić, N. The potential of power-to-heat demand response to improve the flexibility of the energy system: an empirical review. Renew. Sustain. Energy Rev. 138, 110489 (2021).

Article 

Google Scholar
 

Finck, C., Li, R., Kramer, R. & Zeiler, W. Quantifying demand flexibility of power-to-heat and thermal energy storage in the control of building heating systems. Appl. Energy 209, 409–425 (2018).

Article 

Google Scholar
 

Larionova, Y. V., Sharma, D., Nijhawan, G., Kumari, N. & Devi, S. The economic viability of smart home investments: a cost–benefit analysis. BIO Web Conf. 86, 01086 (2024).

Article 

Google Scholar
 

Saberi, H., Zhang, C. & Dong, Z. Y. Capacity of virtual energy storage system for frequency regulation services via a data-driven distributionally robust optimization method. IEEE Trans. Power Syst. 38, 2134–2147 (2022).

Article 

Google Scholar
 

Muratori, M. & Rizzoni, G. Residential demand response: dynamic energy management and time-varying electricity pricing. IEEE Trans. Power Syst. 31, 1108–1117 (2015).

Article 

Google Scholar
 

Shafie-khah, M. et al. Comprehensive review of the recent advances in industrial and commercial DR. IEEE Trans. Ind. Inform. 15, 3757–3771 (2019).

Article 

Google Scholar
 

Golmohamadi, H. Demand-side management in industrial sector: a review of heavy industries. Renew. Sustain. Energy Rev. 156, 111963 (2022).

Article 

Google Scholar
 

Hao, H., Corbin, C. D., Kalsi, K. & Pratt, R. G. Transactive control of commercial buildings for demand response. IEEE Trans. Power Syst. 32, 774–783 (2016).

Article 

Google Scholar
 

Arteconi, A. & Polonra, F. Demand side management in refrigeration applications. Int. J. Heat Technol. 35, S58–S63 (2017).

Article 

Google Scholar
 

Beil, I., Hiskens, I. & Backhaus, S. Frequency regulation from commercial building HVAC demand response. Proc. IEEE 104, 745–757 (2016).

Article 

Google Scholar
 

Hartmann, B., Divényi, D. & Vokony, I. Evaluation of business possibilities of energy storage at commercial and industrial consumers — a case study. Appl. Energy 222, 59–66 (2018).

Article 

Google Scholar
 

Wierman, A., Liu, Z., Liu, I. & Mohsenian-Rad, H. Opportunities and challenges for data center demand response. In Proc. International Green Computing Conference 1–10 (IEEE, 2014).

Ma, O. et al. Demand response for ancillary services. IEEE Trans. Smart Grid 4, 1988–1995 (2013).

Article 

Google Scholar
 

Siano, P. Demand response and smart grids — a survey. Renew. Sustain. Energy Rev. 30, 461–478 (2014).

Article 

Google Scholar
 

Stanelyte, D., Radziukyniene, N. & Radziukynas, V. Overview of demand-response services: a review. Energies 15, 1659 (2022).

Article 

Google Scholar
 

Kahnamouei, A. S. & Lotfifard, S. Enhancing resilience of distribution networks by coordinating microgrids and demand response programs in service restoration. IEEE Syst. J. 16, 3048–3059 (2021).

Article 

Google Scholar
 

Lashmar, N., Wade, B., Molyneaux, L. & Ashworth, P. Motivations, barriers, and enablers for demand response programs: a commercial and industrial consumer perspective. Energy Res. Soc. Sci. 90, 102667 (2022).

Article 

Google Scholar
 

UK Department for Transport. Electric Vehicle Charging Research: Survey with Electric Vehicle Drivers. https://assets.publishing.service.gov.uk/media/628f5603d3bf7f037097bd73/dft-ev-driver-survey-summary-report.pdf (2022).

Rehman, M. A. et al. A comprehensive overview of vehicle to everything (V2X) technology for sustainable EV adoption. J. Energy Storage 74, 109304 (2023).

Article 

Google Scholar
 

International Energy Agency. Vehicle-to-Grid Technology. https://www.iea.org/reports/vehicle-to-grid-technology (2026).

Moghaddam, Z., Ahmad, I., Habibi, D. & Phung, Q. V. Smart charging strategy for electric vehicle charging stations. IEEE Trans. Transp. Electrif. 4, 76–88 (2017).

Article 

Google Scholar
 

Ravi, S. S. & Aziz, M. Utilization of electric vehicles for vehicle-to-grid services: progress and perspectives. Energies 15, 589 (2022).

Article 
CAS 

Google Scholar
 

Borge-Diez, D., Icaza, D., Açıkkalp, E. & Amaris, H. Combined vehicle to building (V2B) and vehicle to home (V2H) strategy to increase electric vehicle market share. Energy 237, 121608 (2021).

Article 

Google Scholar
 

Sharma, G., Sood, V. K., Alam, M. S. & Shariff, S. M. Comparison of common DC and AC bus architectures for EV fast charging stations and impact on power quality. eTransportation 5, 100066 (2020).

Article 

Google Scholar
 

Owens, J., Schittekatte, T. & Gençer, E. Commercial electric vehicle fleets in U.S. ancillary services markets: a stochastic analysis to inform utility rate design. Util. Policy 90, 101790 (2024).

Article 

Google Scholar
 

Knezović, K., Marinelli, M., Codani, P. & Perez, Y. Distribution grid services and flexibility provision by electric vehicles: a review of options. In Proc. 2015 50th International Universities Power Engineering Conference (UPEC) 1–6 (IEEE, 2015).

Rakholiya, K. & Neumann, R. Bidirectional EV Charger Selection Guide 2026: V2H, V2G & Costs. https://www.surgepv.com/blog/bidirectional-ev-charger-selection-guide (2026).

Geng, J. et al. Assessment of vehicle-side costs and profits of providing vehicle-to-grid services. eTransportation 19, 100303 (2024).

Article 

Google Scholar
 

Lu, Z., Xu, X., Yan, Z., Han, D. & Xia, S. Mobile energy-storage technology in power grid: a review of models and applications. Sustainability 16, 6857 (2024).

Article 

Google Scholar
 

He, G. et al. Spatiotemporal arbitrage of large-scale portable energy storage for grid congestion relief. In Proc. 2019 IEEE Power & Energy Society General Meeting (PESGM) 1–5 (IEEE, 2019).

Dugan, J., Mohagheghi, S. & Kroposki, B. Application of mobile energy storage for enhancing power grid resilience: a review. Energies 14, 6476 (2021).

Article 

Google Scholar
 

Institute of Electrical and Electronics Engineers. IEEE Guide for Design, Operation, and Maintenance of Battery Energy Storage Systems, Both Stationary and Mobile, and Applications Integrated with Electric Power Systems. IEEE Std 2030.2.1-2019, 1–45. https://standards.ieee.org/ieee/2030.2.1/5832/ (IEEE, 2019).

Mancarella, P. MES (multi-energy systems): an overview of concepts and evaluation models. Energy 65, 1–17 (2014). This foundational article defines the multi-energy-systems concept and presents modelling approaches for evaluating interactions across energy vectors.

Article 

Google Scholar
 

Meydani, A., Shahinzadeh, H., Gharehpetian, G. B., Hayati, M. M. & Abapour, M. Exploring the role of power-to-X in energy hubs. In Power-to-X in Regional Energy Systems: Planning, Operation, Control, and Market Perspectives (eds Anvari-Moghaddam, A. et al.) 129–183 (CRC Press, 2025).

International Energy Agency. Global Hydrogen Review 2025. https://www.iea.org/reports/global-hydrogen-review-2025 (2025).

Daiyan, R., MacGill, I. & Amal, R. Opportunities and challenges for renewable power-to-X. ACS Energy Lett. 5, 3843–3847 (2020).

Article 
CAS 

Google Scholar
 

Yue, M. et al. Hydrogen energy systems: a critical review of technologies, applications, trends and challenges. Renew. Sustain. Energy Rev. 146, 111180 (2021).

Article 

Google Scholar
 

Papadias, D. D., Peng, J.-K. & Ahluwalia, R. K. Hydrogen carriers: production, transmission, decomposition, and storage. Int. J. Hydrog. Energy 46, 24169–24189 (2021).

Article 
CAS 

Google Scholar
 

Sorrenti, I., Rasmussen, T. B. H., You, S. & Wu, Q. The role of power-to-X in hybrid renewable energy systems: a comprehensive review. Renew. Sustain. Energy Rev. 165, 112380 (2022).

Article 
CAS 

Google Scholar
 

Qadrdan, M., Abeysekera, M., Chaudry, M., Wu, J. & Jenkins, N. Role of power-to-gas in an integrated gas and electricity system in Great Britain. Int. J. Hydrog. Energy 40, 5763–5775 (2015).

Article 
CAS 

Google Scholar
 

Shin, H. et al. Techno-economic evaluation of green hydrogen production with low-temperature water electrolysis technologies directly coupled with renewable power sources. Energy Convers. Manage. 286, 117083 (2023).

Article 
CAS 

Google Scholar
 

Habib, A. Power-to-Hydrogen-to-Power: Technology, Efficiency and Applications. OIES Paper ET48. https://www.oxfordenergy.org/publications/power-to-hydrogen-to-power-technology-efficiency-and-applications/ (Oxford Institute for Energy Studies, 2025).

Kim, J.-K., Son, H. & Yun, S. Heat integration of power-to-heat technologies: case studies on heat recovery systems subject to electrified heating. J. Clean. Prod. 331, 130002 (2022).

Article 

Google Scholar
 

Bloess, A., Schill, W.-P. & Zerrahn, A. Power-to-heat for renewable energy integration: a review of technologies, modeling approaches, and flexibility potentials. Appl. Energy 212, 1611–1626 (2018). This comprehensive review synthesizes power-to-heat technologies, modelling approaches and their flexibility potential for renewable-energy integration.

Article 
CAS 

Google Scholar
 

Danish Energy Agency & Energinet. Technology Data for Generation of Electricity and District Heating. https://ens.dk/sites/ens.dk/files/Statistik/technology_data_catalogue_for_el_and_dh_-_0009.pdf (2024).

International Energy Agency. Can Low-Temperature Heat in Factories be Electrified Competitively? https://www.iea.org/commentaries/can-low-temperature-heat-in-factories-be-electrified-competitively (2025).

Mi, J. & Khodayar, M. E. Operation of natural gas and electricity networks with line pack. J. Mod. Power Syst. Clean Energy 7, 1056–1070 (2019).

Article 

Google Scholar
 

Üster, H. & Dilaveroğlu, Ş Optimization for design and operation of natural gas transmission networks. Appl. Energy 133, 56–69 (2014).

Article 

Google Scholar
 

Götz, M. et al. Renewable power-to-gas: a technological and economic review. Renew. Energy 85, 1371–1390 (2016).

Article 

Google Scholar
 

Al-Shafi, M., Massarweh, O., Abushaikha, A. S. & Bicer, Y. A review on underground gas storage systems: natural gas, hydrogen and carbon sequestration. Energy Rep. 9, 6251–6266 (2023).

Article 

Google Scholar
 

Tarkowski, R. Underground hydrogen storage: characteristics and prospects. Renew. Sustain. Energy Rev. 105, 86–94 (2019).

Article 
CAS 

Google Scholar
 

Lipiäinen, S., Lipiäinen, K., Ahola, A. & Vakkilainen, E. Use of existing gas infrastructure in European hydrogen economy. Int. J. Hydrog. Energy 48, 31317–31329 (2023).

Article 

Google Scholar
 

Weiss, R. et al. Decarbonised district heat, electricity and synthetic renewable gas in wind- and solar-based district energy systems. J. Sustain. Dev. Energy Water Environ. Syst. 9, 1–22 (2021).

Article 

Google Scholar
 

Heinemann, N. et al. Enabling large-scale hydrogen storage in porous media — the scientific challenges. Energy Environ. Sci. 14, 853–864 (2021).

Article 
CAS 

Google Scholar
 

Caglayan, D. G. et al. Technical potential of salt caverns for hydrogen storage in Europe. Int. J. Hydrog. Energy 45, 6793–6805 (2020).

Article 
CAS 

Google Scholar
 

Wang, S., Hui, H., Ding, Y. & Zhai, J. Decentralized demand response for energy hubs in integrated electricity and gas systems considering linepack flexibility. IEEE Internet Things J. 11, 11848–11861 (2023).

Article 

Google Scholar
 

Leśko, M., Bujalski, W. & Futyma, K. Operational optimization in district heating systems with the use of thermal energy storage. Energy 165, 902–915 (2018).

Article 

Google Scholar
 

Jesper, M. et al. Large-scale heat pumps: uptake and performance modelling of market-available devices. Renew. Sustain. Energy Rev. 137, 110646 (2021).

Article 

Google Scholar
 

International Energy Agency. The Future of Heat Pumps. https://www.iea.org/reports/the-future-of-heat-pumps (2022).

Lund, H. et al. District heating in clean energy systems. Nat. Rev. Clean Technol. 1, 532–546 (2025). This review explains how district heating, large heat pumps and thermal storage can support integrated and decarbonized energy systems.

Article 

Google Scholar
 

Abbass, A. Hydrogen-fueled internal combustion engines in combined heat and power (CHP) systems: a decarbonization strategy. Energy Nexus 19, 100485 (2025).

Article 
CAS 

Google Scholar
 

Yang, T., Liu, W., Kramer, G. J. & Sun, Q. Seasonal thermal energy storage: a techno-economic literature review. Renew. Sustain. Energy Rev. 139, 110732 (2021).

Article 
CAS 

Google Scholar
 

Werner, S. International review of district heating and cooling. Energy 137, 617–631 (2017).

Article 

Google Scholar
 

International Renewable Energy Agency. Innovation Outlook: Thermal Energy Storage. https://www.irena.org/publications/2020/Nov/Innovation-outlook-Thermal-energy-storage (2020).

Mink, G. et al. Sand thermal energy storage: technology, economics, environmental sustainability, and deployment strategies. J. Energy Storage 149, 120166 (2026).

Article 

Google Scholar
 

Lako, P. Combined Heat and Power. IEA-ETSAP Technology Brief E04. https://refman.energytransitionmodel.com/publications/1985 (Energy Technology Systems Analysis Programme, 2010).

Nuytten, T., Claessens, B., Paredis, K., Van Bael, J. & Six, D. Flexibility of a combined heat and power system with thermal energy storage for district heating. Appl. Energy 104, 583–591 (2013).

Article 

Google Scholar
 

Voswinkel, F., Delmastro, C., Reidenbach, B. & Kvarnström, O. Opportunities for district heating in the changing energy landscape. International Energy Agency. https://www.iea.org/commentaries/opportunities-for-district-heating-in-the-changing-energy-landscape (2025).

Persson, U. & Werner, S. Heat distribution and the future competitiveness of district heating. Appl. Energy 88, 568–576 (2011).

Article 

Google Scholar
 

Bahar, H. & Sauvage, J. Cross-border Trade in Electricity and the Development of Renewables-based Electric Power: Lessons from Europe. OECD Trade and Environment Working Papers No. 2013/02. https://doi.org/10.1787/5k4869cdwnzr-en (OECD Publishing, 2013).

Zhong, S. et al. Accelerating ASEAN’s energy transition in the power sector through cross-border transmission and a net-zero 2050 view. iScience 27, 111547 (2024).


Google Scholar
 

Cervi, W. R. et al. Optimal allocation of sugarcane bagasse for producing bioelectricity and second generation ethanol in Brazil: scenarios of cost reductions. Renew. Energy 118, 351–365 (2018).


Google Scholar
 

Kabeyi, M. J. B. & Olanrewaju, O. A. Bagasse electricity potential of conventional sugarcane factories. J. Energy 2023, 5749122 (2023).

Article 

Google Scholar
 

Jones, A. C. & Marples, D. J. The Section 45Q Tax Credit for Carbon Sequestration. CRS In Focus IF11455. https://www.congress.gov/crs-product/IF11455 (Congressional Research Service, 2023).

International Atomic Energy Agency. Small Modular Reactors, https://www.iaea.org/topics/small-modular-reactors (2024).

European Commission. European Hydrogen Bank Auction Provides EUR 720 Million for Renewable Hydrogen Production in Europe. https://ec.europa.eu/commission/presscorner/detail/en/ip_24_2333 (2024).

Quaranta, E. et al. Considerations on the existing capacity and future potential for energy storage in the European Union’s hydropower reservoirs and pumped-storage hydropower. J. Energy Storage 104, 114431 (2024).

Article 

Google Scholar
 

Yang, B. From Scale to System: Navigating the Next Phase of China’s Battery Storage. https://ember-energy.org/latest-insights/from-scale-to-system-navigating-the-next-phase-of-chinas-battery-storage/ (Ember, 2026).

Costantini, V., Gracceva, F., Markandya, A. & Vicini, G. Security of energy supply: comparing scenarios from a European perspective. Energy Policy 35, 210–226 (2007).

Article 

Google Scholar
 

Ringler, P., Keles, D. & Fichtner, W. How to benefit from a common European electricity market design. Energy Policy 101, 629–643 (2017).

Article 

Google Scholar
 

Andreadou, N., Foretic, H., Gonzalez Cuenca, I. & Tarramera Gisbert, A. Survey on Interoperability of Energy Smart Appliances. EUR 31485 EN, JRC132832. https://doi.org/10.2760/573035 (Publications Office of the European Union, 2023).

EirGrid & SONI. Annual Renewable Energy Constraint and Curtailment Report 2024. https://cms.eirgrid.ie/sites/default/files/publications/Annual-Renewable-Constraint-and-Curtailment-Report-2024-V1.0.pdf (2025).

Commission for Regulation of Utilities. CRU Direction to the System Operators Related to Data Centre Grid Connection Processing: Decision. Decision Paper CRU/21/124. https://cruie-live-96ca64acab2247eca8a850a7e54b-5b34f62.divio-media.com/documents/CRU21124-CRU-Direction-to-the-System-Operators-related-to-Data-Centre-grid-connection-.pdf (CRU, 2021).

Commission for Regulation of Utilities. Large Energy Users Connection Policy. Decision Paper CRU/2025236. https://cruie-live-96ca64acab2247eca8a850a7e54b-5b34f62.divio-media.com/documents/CRU2025236_Large_Energy_User_connection_policy_decision_paper.pdf (CRU, 2025).

Alcaraz, C., López, J. & Wolthusen, S. OCPP protocol: security threats and challenges. IEEE Trans. Smart Grid 8, 2452–2459 (2017).

Article 

Google Scholar
 

Yu, D., Gu, B., Zhu, M. & Davidson, M. R. Critical mineral bottlenecks constrain sub-technology choices in low-carbon energy deployment. iScience 28, 113267 (2025).

Article 

Google Scholar
 

National Gas. Project Union – Energising Britain. https://www.nationalgas.com/future-energy/hydrogen/project-union-energising-britain (2025).

Newbery, D., Pollitt, M. G., Ritz, R. A. & Strielkowski, W. Market design for a high-renewables European electricity system. Renew. Sustain. Energy Rev. 91, 695–707 (2018). This influential analysis identifies the electricity-market reforms required to reward flexibility and support investment in high-renewable systems.

Article 

Google Scholar
 

Giannelos, S. & Pudjianto, D. Grid-scale battery energy storage systems: a comprehensive review of regulatory frameworks and markets. Energies 19, 2188 (2026).

Article 

Google Scholar
 

Navia Simon, D. & Diaz Anadon, L. Power price stability and the insurance value of renewable technologies. Nat. Energy 10, 329–341 (2025).

Article 

Google Scholar
 

Antweiler, W. & Muesgens, F. The new merit order: the viability of energy-only electricity markets with only intermittent renewable energy sources and grid-scale storage. Energy Econ. 145, 108439 (2025).

Article 

Google Scholar
 

Cunico, A. & Coppack, S. Negative Prices Surging: A German Case Study. https://timera-energy.com/blog/strong-growth-in-negative-prices-a-german-case-study/ (2024).

Van Nuffel, L., Dedecca, J. G., Smit, T. & Rademaekers, K. Sector Coupling: How Can it be Enhanced in the EU to Foster Grid Stability and Decarbonise? Study PE 626.091. https://www.europarl.europa.eu/RegData/etudes/STUD/2018/626091/IPOL_STU(2018)626091_EN.pdf (European Parliament, 2018).

Khan, M. K., Kauhaniemi, K., Laaksonen, H. & Hassan, M. A. Review of recent developments in grid codes: focus on compliance testing and grid-forming inverter-based resources. Renew. Sustain. Energy Rev. 227, 116509 (2026).

Article 

Google Scholar
 

Nilson, R. et al. Outcomes and timelines for state-based energy facility permitting in the United States. Front. Sustain. Energy Policy 5, 1715811 (2026).

Article 

Google Scholar
 

Salmeron, J., Wood, K. & Baldick, R. Analysis of electric grid security under terrorist threat. IEEE Trans. Power Syst. 19, 905–912 (2004).

Article 

Google Scholar
 

Ten, C.-W., Yamashita, K., Yang, Z., Vasilakos, A. V. & Ginter, A. Impact assessment of hypothesized cyberattacks on interconnected bulk power systems. IEEE Trans. Smart Grid 9, 4405–4425 (2018).

Article 

Google Scholar
 

Schäfer, B., Witthaut, D., Timme, M. & Latora, V. Dynamically induced cascading failures in power grids. Nat. Commun. 9, 1975 (2018).

Article 

Google Scholar
 

Geske, J., Green, R. & Staffell, I. Elecxit: the cost of bilaterally uncoupling British–EU electricity trade. Energy Econ. 85, 104599 (2020).

Article 

Google Scholar
 

ENTSO-E. Entso-e Confirms Successful Synchronization Of The Continental European Electricity System with the Systems of the Baltic Countries. https://www.entsoe.eu/news/2025/02/09/entso-e-confirms-successful-synchronization-of-the-continental-european-electricity-system-with-the-systems-of-the-baltic-countries/ (2025).

Parrish, B., Heptonstall, P., Gross, R. & Sovacool, B. K. A systematic review of motivations, enablers and barriers for consumer engagement with residential demand response. Energy Policy 138, 111221 (2020). This systematic review provides a rigorous evidence base on the motivations, enablers and barriers shaping household participation in demand response.

Article 

Google Scholar
 

Jackson, G. Agile Octopus: a consumer-led shift to a low carbon future. Octopus Energy. https://octopus.energy/blog/agile-report/ (2018).

Shakoor, A. A. et al. Roadmap for Flexibility Services to 2030: A Report to the Committee on Climate Change. https://www.theccc.org.uk/publication/roadmap-for-flexibility-services-to-2030-poyry-and-imperial-college-london/ (Pöyry Management Consulting and Imperial College London, 2017).

Strbac, G. et al. Whole Energy System Modelling for Heat Decarbonisation. https://www.imperial.ac.uk/media/imperial-college/energy-futures-lab/research/Whole-Energy-System-Modelling-for-heat-decarbonisation_ICL_2021%5B2%5D.pdf (Imperial College London, 2021).

Dall’Anese, E., Mancarella, P. & Monti, A. Unlocking flexibility: integrated optimization and control of multienergy systems. IEEE Power Energy Mag. 15, 43–52 (2017).

Article 

Google Scholar
 

Huo, Y., Bouffard, F. & Joos, G. Spatio-temporal flexibility management in low-carbon power systems. IEEE Trans. Sustain. Energy 11, 2593–2605 (2020).

Article 

Google Scholar
 

Agbonaye, O., Keatley, P., Huang, Y., Ademulegun, O. O. & Hewitt, N. Mapping demand flexibility: a spatio-temporal assessment of flexibility needs, opportunities and response potential. Appl. Energy 295, 117015 (2021).

Article 

Google Scholar
 

Adewuyi, O. B., Folly, K. A., Oyedokun, D. T. O. & Sun, Y. Artificial intelligence application to flexibility provision in energy management system: a survey. In Advances in Artificial Intelligence for Renewable Energy Systems and Energy Autonomy (eds Manshahia, M. S. et al.) 55–78 (Springer, 2023).

Xie, L. et al. Energy system digitization in the era of AI: a three-layered approach toward carbon neutrality. Patterns 3, 100640 (2022).

Article 

Google Scholar
 

Corsetti, E. & Vannoni, A. Multi-energy systems and flexibility markets: benefits and boundaries. In Proc. 2025 21st International Conference on the European Energy Market (EEM) 1–6 (IEEE, 2025).

Kumar, P. & Singh, A. K. Grid codes: goals and challenges. In Renewable Energy Integration: Challenges and Solutions (eds Hossain, J. & Mahmud, A.) 17–39 (Springer, 2014).

Jacottet, A. Cross-Border Electricity Interconnections for a Well Functioning EU Internal Electricity Market. Oxford Energy Comment. https://ora.ox.ac.uk/objects/uuid:1f610d1c-9edc-49c1-a437-6179ee932ea8 (Oxford Institute for Energy Studies, 2012).

Carmichael, R., Gross, R. & Rhodes, A. Unlocking the Potential of Residential Electricity Consumer Engagement with Demand Response. Energy Futures Lab Briefing Paper No. 3. https://www.imperial.ac.uk/icept/briefing-papers/paper-3/ (Imperial College London, 2018).

Department for Energy Security and Net Zero & Ofgem. Future System Operator: Second Policy Consultation and Update. https://assets.publishing.service.gov.uk/media/64ccaeeb3c4564000d9429fa/future-system-operator-second-policy-consultation.pdf (2023).

Carbon Trust & Imperial College London. Flexibility in Great Britain, https://www.carbontrust.com/our-work-and-impact/guides-reports-and-tools/flexibility-in-great-britain (2021).

Atlas. Global Power Plants Map. https://atlas.co/maps/global-power-plants-map/ (accessed 8 September 2026).

National Energy Technology Laboratory. NETL’s Carbon Capture and Storage Database. U.S. Department of Energy. https://www.netl.doe.gov/carbon-management/carbon-storage/worldwide-ccs-database (2022).

World Nuclear Association. Small Modular Reactor (SMR) Global Project Tracker. https://world-nuclear.org/information-library/nuclear-power-reactors/small-modular-reactors/small-modular-reactor-smr-global-tracker (2026).

International Energy Agency. Hydrogen Production and Infrastructure Projects Database. https://www.iea.org/data-and-statistics/data-product/hydrogen-production-and-infrastructure-projects-database (2026).

Sandia National Laboratories. The DOE Global Energy Storage Database. https://sandia.gov/ess-ssl/gesdb/public/index.html (2021).

Ember. Net Electricity Imports. Our World in Data. https://ourworldindata.org/grapher/net-electricity-imports (2026).

Statista. Smart Home — Worldwide. Statista Market Insights. https://www.statista.com/outlook/cmo/smart-home/worldwide (2026).

International Data Center Authority. Global Data Center Report 2026. https://www.idc-a.org/insights/Sk2PFZCost98Eqhk2FUA (2026).

International Energy Agency. Global EV Data Explorer. https://www.iea.org/data-and-statistics/data-tools/global-ev-data-explorer (2026).