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if you generate excess energy, can you store it for a later time when you need more energy (presumably summer time)?
by perfectstorm 4y ago
if you generate excess energy, can you store it for a later time when you need more energy (presumably summer time)?
- pkaye 4y agoYou would need batteries which are quite expensive at this time.
- mnw21cam 4y agoThere are no sensible storage methods that would allow you to store enough energy from summer to make any reasonable contribution towards winter. Batteries a great for powering your house for a few days. Not really beyond that. Unless you buy a ridiculous amount of batteries.
- edmundsauto 4y agoBatteries are also great for using at night!
- asdff 4y agoWhile you wait decades for home battery storage technology to improve, you can make a water battery in the meantime with a few things from the hardware store. https://hackaday.com/2021/10/08/power-your-home-with-a-water-battery/ https://hackaday.com/2021/10/08/power-your-home-with-a-water...
- byyll 4y agoYou have to be joking, right? That's a 55 gallons of water as a battery that require 5.5 hours to charge and store 3.9 Wh of energy. Not enough to even power a 10W LED lamp for half an hour. A 10,000 mAh power bank is 37Wh.
- AdamTReineke 4y agoThis system only had enough power to run a small light, IIRC.
- 0cf8612b2e1e 4y agoYou can buy a residential battery today that provides real value. The limitation on batteries is for grid scale supply.
- mrits 4y agoIt's a lot more efficient to sell back to the power company. I'd be more comfortable with having a dual fuel generator for apocalyptic situations vs a bunch of batteries.
- Rebelgecko 4y agoSome (all?) electric companies in CA do net metering, where you can sell them your excess electricity at any time and storage essentially becomes their problem.
- gpm 4y ago> presumably summer time Assuming you have batteries, you discharge and charge them on a daily cycle, not a yearly cycle, to make the most money/have the most benefit. There are predictable time of day based troughs and peaks in the price that you can take advantage of.
- bushbaba 4y agoWhy would I? I’m on NEM 2.0. The grid is my “battery”. Every KWh I generate that isn’t used is sent back to the grid. In exchange I get an IOU for the equivalent $/KWh price during that time. This is the retail $/KWh which includes transmission costs.