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Solar is now ‘cheapest electricity in history’, confirms IEA (International Energy Agency) (from 2020)
(www.carbonbrief.org)
this post was submitted on 12 Nov 2023
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Technology
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You do get paid for unused solar, it's just less than it used to be. The idea is that you're meant to shift your loads to the day. Even without the additional feed in, 6.6kw only costs 2.5k and pays itself off within 4 years if you're shifting your loads to the solar peak
Also, it feels like you've installed an overly big battery system.
Panels and batteries are subsidised here in Victoria and the panels only costs 2500aud for a 6.6k system. Most people spend 20k on batteries or less
How can we shift our peak power use when no one is there to use it?. Again we did all the math even with the company and we all came to the same figure. If we did solar only then the system would cost us more in the long term as we still need to draw power during our peak usage. Battery was the only way to make it viable.
You can get devices which hook into your smart meter and measure energy usage, and optimise for that.
The reason you don't get much feedin anymore (unless you're a Virtual power plant, at times more power is needed), is because previously, people were just generating too much excess power during the day, and forcing non-renewables to turn on again at night (so it was pointless). Ideally, you should be trying to export 0kwh back to the grid