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Showing posts from April, 2021

Tesla Solar and Powerwall Review

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With the summer months in our area getting warmer each year, we are finding that our power bill ramped up significantly as we started running the air conditioning for more hours each summer. Our power bill 7 years ago was peaking at $280 / month in August, last year it peaked at $490 in the same month.  Our electric bill for 2020 totaled about $3500 - I was able to download .csv file formatted usage data from the PG&E website to look at this data. This drove me to consider investing in solar as a way to mitigate this electrical expense, and even have a small return on that investment down the road.  We decided to put in 2 Powerwalls  Gen 2s, 10kW of solar production, plus the smart power Backup Gateway and a string inverter with power optimizers. Estimated annual production 12539 kWh, which is very close to what our usage was the previous year. Layout on a roof of an outbuilding that is about 22' x 42': This is not one of their standard packages, so I was surprised that the