While this may look promising, and seem the perfect way to increase renewable penetration, paving the way to a decarbonized energy sector, please stop. …and reconsider if it is the best solution.
Why decarbonize the power sector alone… if we can decarbonize the transportation and the power sector at the same time?
How? Investment in electric vehicles (EVs) must be economically efficient in itself (cheaper than the CO2 emmitting vehicles) so every € invested has already a return via mobility (for the owner/user). This means using the available storage is relatively “free” to the power sector. In my opinion, subsidizing battery storage (gathering dust inside a building) is a stupid idea compared to incentivizing the “transport-sector-decarbonizing-storage” or, to say it other way, batteries-with-wheels. EVs should be incentivized not only by governments trying to reduce the energy sector trade unbalances and reducing CO2 emissions, but also by utilities willing to increase the customer’s bill (an EV customer is billed aprox. a 30% more)