4 ms·
Using a hot water tank as a battery is an incredibly simple idea. I wonder how much electric hot water heaters on a timer could flatten California's duck curve.
by megaman821 2y ago
Using a hot water tank as a battery is an incredibly simple idea. I wonder how much electric hot water heaters on a timer could flatten California's duck curve.
- ok_dad 2y agoThere’s a company doing that in Hawaii, I think it’s called “shift energy”. I interviewed with them, it seemed like a great operation, but a bit hobbled by being a startup in Hawaii. I respect it though, I’d do the same.
- applied_heat 2y agoThey have been controlling hot water tanks in New Zealand for decades… probably since the 70s. They use what they call a ripple signal by adding 400 hz on top of the 60 and then relays on your hot water tank detect the 400hz and switch it off
- Taniwha 2y agoWe also control (or used to control) our street lights in AoNZ using ripple control (it was implemented with a tuned reed relay in some towns). Back in the 70s friends built a ripple transmitter and sent morse across Ōtepoti by turning on/off their suburb's street lights (at 2am)