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Thank you!!! I was coming here to post exactly this. They say 'The “92% efficiency” figure quoted by Tesla isn’t as good as it sounds'... Then they just grab nu
by chisleu 11y ago
Thank you!!! I was coming here to post exactly this. They say 'The “92% efficiency” figure quoted by Tesla isn’t as good as it sounds'... Then they just grab numbers from other technology on the market and jam out some made up numbers.
If Musk says 92% round trip, then I don't assume he really means 87%.
I'm excited about it because I would like to build a tiny house off the grid in Colorado and this makes solar into a realistic option out there.
- bryanlarsen 11y agoThe 92% doesn't include the inverters, which aren't included in powerwall. 87% includes typical inverter losses.
- fredkbloggs 11y agoIt doesn't. Please, please do yourself a favour and talk with someone in Colorado who is knowledgeable about building off-grid power systems in that area. They will be familiar with existing battery systems that are less expensive and more capable than the Powerwall. If building an off-grid cabin is a realistic option with a Powerwall, it's realistic without it... and was realistic 10 years ago, too.