The UK Government has launched a consultation to determine how best it can alter planning policy frameworks to support developers and businesses seeking to build energy storage facilities in England.
Edie 15th Jan 2019 read more »
Electricity grids running solely on renewables have to handle massive swings in generation, where demand may be way above or below the power being produced by the wind or sunshine on a given day or night. One way to solve this issue is to ramp up the “dispatchable load” on the grid, the energy demand that can be controlled or scheduled to take advantage of peaks and troughs in general demand. For example, surplus renewable electricity can be stored in car batteries until it is needed or used to drive heat pumps that can heat space or water for use later, the article suggests. But is storing all that excess power as simple as that? Not according to Professor Emmanouil Kakaras, senior vice president and head of power and energy solutions at Mitsubishi Hitachi Power Systems (MHPS) Europe, a part of Mitsubishi Heavy Industries Group. He argues that electrification plus battery storage and dispatchable load techniques can only ever be part of the solution to the intermittency issue. “If you add all the pieces together, and you are very ambitious about electrification and electromobility, and you exhaust all the limits of space heating or using all the heat pumps you can imagine and so on, the point is that in a massive deployment of renewables, you still will have a bit of mismatch between demand and supply, which is significantly higher than the two sectors – power-to-heat and battery storage – could accommodate,” he tells BusinessGreen. According to Professor Kakaras, the key to deep decarbonisation will lie in our ability to harness the excess electricity from national grids to decarbonise hard-to-electrify sectors. It’s a strategy he calls ‘Power-to-X’, where ‘X’ electricity is converted into another form of latent energy. For example, Power-to-X could describe turning electricity into hydrogen, or synthetic biofuels, or thermal heat.
Business Green 15th Jan 2019 read more »