The BBC has reported that the "Smart energy revolution "could help to avoid UK blackouts".

Speaking to the BBC, Shaw said adjusting peak demand using what she termed the “internet of energy” could effectively smooth over between 30% and 50% of daily fluctuations in demand on the grid, going some way to plugging the gaps in generation capacity. She said having historically generated power at large facilities that was then distributed to homes and businesses, these homes and businesses were now generating electricity themselves, usually through solar panels, and storing it for use later, which is becoming increasingly viable at a smaller-scale.
At the same time, she said, others were adjusting how they use their appliances to take advantage of cheaper power at certain times of day, with some providers already offering tariffs that help them do this.In its recent Future Energy Scenarios report, the National Grid said time-of-use tariffs (Touts) and smart metering could reduce peak consumption among residential users by over 1.5 Gigawatts by 2035 in the best case scenario.
http://www.bbc.co.uk/news/business-37220703