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A shopkeeper in Granada, Spain, uses torchlight to keep trading. The Iberian peninsula was hit by a massive power failure in April. Photograph: Ferm\u00edn Rodr\u00edguez\/NurPhoto\/Rex\/Shutterstock <\/p>\n A shopkeeper in Granada, Spain, uses torchlight to keep trading. The Iberian peninsula was hit by a massive power failure in April. Photograph: Ferm\u00edn Rodr\u00edguez\/NurPhoto\/Rex\/Shutterstock <\/p>\n
Great Britain\u2019s energy system operator says it has significantly improved its monitoring of domestic electricity grids to \u201cfuture proof\u201d the country\u2019s low-carbon power network.<\/p>\n
After widespread power cuts <\/a>across most of Spain and Portugal in April, the National Energy System Operator (Neso) started work to pinpoint dangerous fluctuations that could lead to outages.<\/p>\n The Iberian peninsula suffered a series of disturbances that caused power plants to disconnect from the network. An official report on the cause of the incident<\/a>, in which system voltage collapsed to zero, is expected later this year.<\/p>\n Many households and businesses were left without electricity for almost two days, blocking access to internet and mobile networks and even disrupting the Madrid Open tennis tournament.<\/p>\n The blackout raised questions over Spain\u2019s ability to manage a renewables-heavy power system that can be more difficult to keep in balance than a grid powered by thermal power plants.<\/p>\n In a report on the blackouts, published on Tuesday, Neso promised to increase its real-time monitoring of the network by using a new \u201cmathematical methodology\u201d to spot problems that could lead to a power cut.<\/p>\n