this post was submitted on 16 Mar 2025
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It's possible to have great tech without the spying, but it takes a lot of understanding of and ability with computer technology
We have pretty good batteries. I have modelled solar on my house (based on records of the 2011 solar array I have), with 15kW of solar panels and many loads (especially HVAC, water heating, car charging) being done in daylight hours I would only need about 10kWh of battery, but 30kWh would be better for a bit of really bad weather tolerance
The main job of a battery is to provide power between dusk and dawn and to buffer power spikes (like air con starting up) from the solar power, and batteries are well up to doing that
For reference my normal night time power usage is 6kWh in winter, less when the days are longer
Lithium iron phosphate (LiFePO4) batteries are safe and aren't degraded by being charged and discharged daily. Near future battery technologies are less high performing, but are non polluting