alt Hacker NewsIt's so frustrating discussing topics you know about on HN because you get so many software developers, which naturally know everything, that make comments like this.
Solar does not 'just work' - in the US it's a crisis in the making. Power prices in several areas of the grid routinely go negative because the grid is a zero sum game - there is very little storage so what goes in must exactly match what goes out or grid frequency deviations and eventually blackouts happen. This is much more likely to happen once undispatchable resources climb past a certain threshold in our generation mix.
To fix this we need massive storage and transmission investment, like moon landing and WW2 put together. We desperately need to do that before we add more non-dispatchable generation.
Solar with storage is an amazing resource. Without storage it's counterproductive if it's grid tied.
Replies
> undispatchable resources
Solar is not dispatchable like a gas power plant is as the sun needs to shine to produce electricity. But it can very much be curtailed to any percentage you want. And that is being done globally every day exactly when it would be uneconomical to generate that electricity.
Interestingly this is as opposed to nuclear energy, which is basically never curtailed and always runs at 100% unless needed for maintenance or safety. Which is one of the main factors why nuclear energy is not economical anymore in a modern grid that values flexibility over constant generation.
But respectfully isn't the crisis more in the American political system and regulation? And surely large scale solar farms/batery storage connected to a supergrid (or whatever they are called) are a relatively good fit for this kind of legacy grid.
> Solar with storage is an amazing resource. Without storage it's counterproductive if it's grid tied.
Solar creates the economic incentive for storage. Without solar coming first, storage cannot occur.
You can see this in California. In the beginning, it made sense to install only solar, because energy developers are compensated at the margin. Once the grid is saturated with solar, then the marginal economics changes in response to the duck curve, and storage starts to make economic sense.
If you block solar, you block storage. To believe otherwise is to be ignorant of the temporal aspect of the economics.