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Sceptics say EVs will overwhelm the grid. In fact, they could be part of the solution
(www.theguardian.com)
this post was submitted on 15 Jul 2024
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Electric Vehicles
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I wouldn't generalize that people "don't like TOU". People understand that energy costs more during peak periods and are generally receptive to these market forces. People are used to driving around to save $0.02/gallon on gas, they can run their dishwasher later in the evening and adjust their thermostat slightly to save money. Plus obviously off peak EV charging.
As to the heat pump situation, you're describing an air to water heat pump and a large buffer tank. You heat the tank off peak and it distributes the water throughout the day. You can then optimize to price, but the equation is complicated because the COP varies dramatically with outdoor temperature. These systems just aren't that common in the US though, where forced air or ductless heads are dominant, but people absolutely replace boilers with heat pump driven hot water systems. We should see more options (e.g. R290 monoblocs) in the US at some point, hopefully.
Found it, but not available where I am. Choices like these could really help