For wind this makes a little bit of sense, but for solar "whenever I want to deliver" is largely once per day as regular as clockwork for several hours and that means you can bridge with BESS.
You can already see it in charts, initially BESS shifts some of that peak midday sun energy to evening usage where it's worth more to us, but gradually competition drives down that evening price and so the BESS cuts deep into the night chasing those higher prices. It's most exaggerated in Australia today, where the reason the power is relatively cheap when you wake up before dawn isn't that somehow coal is less expensive at night - it is because much of that is solar power from yesterday and if they don't sell it to you now for whatever price they can get they've wasted a whole cycle, 'cos the sun, with free power, is coming up like it or not.
alt Hacker News
For wind this makes a little bit of sense, but for solar "whenever I want to deliver" is largely once per day as regular as clockwork for several hours and that means you can bridge with BESS.
You can already see it in charts, initially BESS shifts some of that peak midday sun energy to evening usage where it's worth more to us, but gradually competition drives down that evening price and so the BESS cuts deep into the night chasing those higher prices. It's most exaggerated in Australia today, where the reason the power is relatively cheap when you wake up before dawn isn't that somehow coal is less expensive at night - it is because much of that is solar power from yesterday and if they don't sell it to you now for whatever price they can get they've wasted a whole cycle, 'cos the sun, with free power, is coming up like it or not.