We had solar panels installed on our home in late 2007. That makes 2020 our 13th full year with solar panels on our roof. That's over 13 years quietly, dependably, making electricity to run our home. We started with a 4 kW system and then added another 8 kW in 2015.
In 2020, together these two systems generated 12,345 kWh. Yes, it was really 1-2-3-4-5. This brings our lifetime total to 94,137 kWh. At 14¢ that would be ~$13,000 worth of electricity. If these 94 MWhs were used to charge a Tesla Model 3 Standard Range Plus, it would be able to drive more than 600,000 km or nearly 16 times around Earth.
Here's a chart of our lifetime production:
If you look closely at the summer of 2020, you can see that the production flattens out faster than in previous years. That was due to the various fires that darkened our skies. It's ironic that the fires are made worse by global warming and they are reducing our solar production. A vicious feedback cycle.
2020 ended with our Powerwall installation on New Year's Eve.
Referral code
If you are interested in a Tesla solar glass roof or their solar subscription program, you can use my referral link and after activation, you'll get $100 of free solar energy.
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