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The book is about the UK, not the US. The UK has much, much less solar potential than the US. The southern most point of Great Britain is further north than th

The book is about the UK, not the US. The UK has much, much less solar potential than the US. The southern most point of Great Britain is further north than the northern most point of the contiguous USA. And it's really, really rainy here too.

owenversteeg 3y ago
I'm very aware, I live on a boat in the Netherlands part of the year and it is off-grid, powered by solar :) You can generate a yearly average of 1.6 kWh per day in London from that single 550W panel, which is only 20% less than the 2 kWh per day I mentioned for the US. As I mentioned the panel is only $200 so if you need more power you can simply put up a few more. Also, obviously, there is a significant range depending on location in both the UK and the US: - in Yuma, AZ you will generate 3.19 kWh per year average (and the lowest, December is only 74% of peak in May!) - in Seattle, WA you will generate 1.95 kWh/day average (with winter 27% of peak) - in Oban, Scotland you will generate 1.35 kWh/day average (with winter 10% of peak) - in London you will generate 1.6 kWh/day average (with winter 17% of peak) The nice thing about solar, though, is that you can just overpanel for whatever your needs are. When the panels are so cheap, under $200 for a giant panel, you can just throw up some more panels and bam, you have enough solar year round. Obviously there are places far enough north to get too much darkness and snow to make year round solar realistic but even in most of the UK it is totally realistic to run off solar year round.