[HWR_14]

I mean, wouldn't the simple and easy solution be to store that 30% energy and use it at night to reduce your load then? A quick search suggests home battery systems that store 30kw hrs might be around 9,000 euro. Plus the various inverters, etc.

Reducing peak load has to be more efficient than removing the CO2 after the fact, at least until that load is no longer generated by fossil fuels. It also lets you reduce your country's dependence on said fossil fuels which has been a hot button for the past few months.

[mogoman]

Sure, 30kW storage is fine, but it implies you use all the energy every day (or night). In the summer months my current set up uses basically 0 grid hours (as I already have some storage for night time). The 30% really is an excess after storage, running home appliance, charging batteries etc.

[HWR_14]

If you store 30% for 3 hours, that's 90% of peak generation. It seems, by law, you could then finish selling that excess power for the next ~1.3 hours at your maximum rate (less storage inefficiencies).

You could figure out what time of day rates are highest, because that would imply you're releasing the most pressure on fossil fuel generators.

[mogoman]

That's a very good idea, probably also the easiest to implement since my set up is API driven.