Yeah, this is why I’m not too worried about the energy storage side of going 100% renewable energy in a scenario where we also decarbonise completely.<p>Storing energy as heat is dead simple, cheap, can let you store huge amounts of energy, and you can store for fairly long timespans.<p>It doesn’t matter that you can’t feed power back to the grid (well, maybe you can.. you can convert the light given off the heated block with photovoltaics.. but that won’t be a huge factor). If we decarbonise industrial heat it will create enough demand for renewables that the minimum output of renewables (over a larger area, I think it’s fair to assume <i>some</i> grid improvements over the next years) will be more than enough to cover base load needs. We will probably have quite a lot of batteries for frequency regulation and smoothing out the duck curve. Some of that will also help with dunkelflaute. But mainly there will just be so much renewables that the output never goes below what is needed on a given day.<p>There’s so many aspects of decarbonisation that makes balancing the grid easier. Electric cars is another example, where a lot of people will have flexibility of delaying or being proactive with charging based on electricity price forecasts. I expect most rental car companies will provide some grid balancing services, and in the near future you’ll have to pay extra to check out a car with 100% SoC.