‘You almost need to draw a line under what has come before and start again. There is no doubt that batteries completely and utterly metamorphose the market in that they make the uncontrollable controllable. It makes the arguments against renewable energy fall away’. Nick Boyle, founder of Europe’s largest solar operator, Lightsource. And batteries in Electric Vehicles (EVs) take it on to a new level, with IRENA claiming that ‘EVs can be used to enable a higher share of variable renewable energy in the power system’. So does all this add up to technological revolution? Certainly energy storage is useful as way to balance variable renewables, but there are gain-sayers, who note that there are other grid balancing and storage options: Other views which suggests that, with the linked potential for long term storage of hydrogen, despite its costs, P2G might be better that compressed air storage (CASES) and even pumped hydro (PHES), its main rivals for long term storage: ‘The comparison in terms of cost and efficiency showed that PHES is better than P2G and CAES. And P2G has many benefits such as: conversion of energy vector from electricity to gas which is available for renewable thermal and transport energy; longest storage time; and minimal impact on the environment.
Environmental Research Web 16th Dec 2017 read more »