Or, you can buy a small/cheap $500 inverter-generator (dual fuel - especially with Propane and Gas combo) - and use it with a Propane tank/fuel. Ir you have done enough “care/code-compliance” on back-flow - nice to know. Summer plan is refrigerator, fans and lights for 7+ days. I estimate that, at 80% charge, the furnace would run at least 4-5 days before depleting EV to under 20%. All users would be external from house wiring. ![]() Plan is, in winter, to power the downstairs furnace via extension cord, and potentially also a few lights, phone charger, and/or other low draw appliances. I purchased a 2000w inverter ($220) and an appropriate fuse and cable ($25) to connect to my 72kWh EV. But unless you are an electrician willing to do this yourself, you won't be actually obtaining, installing, and permitting a FE-15 charger at your house right now. You can use it with a beat-up Nissan Leaf that costs $300/kWh - cheaper than even the cheap, uncertified server rack batteries. The FE-15 charger was announced not that long ago and is on the California approved equipment list. V2H/V2G falls into this category of "very cheap but good luck actually getting someone to set it up and get a permit." It's technically possible. Everyone else seems enormously behind in terms of actually having people to put their equipment in houses. Enphase is catching up they have a big installer network, but their prices are not amazing either. There are plenty of cheaper batteries - you can get them at half the price or less - but have fun finding an installer who will get a permit from the electrical company and install that equipment. ![]() It has to be hugely profitable, because the price is insane, but they're able to charge it because the competition is equally weak. Tesla is selling powerwalls for $1000/kWh because they have an army of people selling and installing them. IMO, if it was relatively straightforward to implement, Tesla wouldn't be selling all these $15K powerwalls (that will probably be obsolete in 5 years +/-). Or, simply stay mum - and let eco-system evolve until such time. ![]() If this feature is made available at bigger scale - in some of the coastal states - “peak/non-peak” and “make your battery available for grid’s peak events” would possibly pay you considerable amount of $$s - that, such payments may actually fully pay off for your low end EV in 4-5 years.īut, there is a fly or two (or a dozen) in this ointment:Ī) potential liability of EV manufacturer on known/unknown risksī) most of current gen EV batteries have 1000’ish charge/discharge cycles - so, if someone uses their EV for house needs and/or grid needs - they incur additional charge/discharge cycles thus incurring battery warranty issuesĬ) un-scrupulous commercial contractors (and/or campers) may start using/abusing this feature - thus increasing battery warranty/wear-tear issuesĭ) Say, if the back-flow is not working as much/as-expected- now EV manufacturer likely incurred warranty issue(s) - who local certified electricians are (likely unionized) need to handle - good luck with that! Good idears - code/compliance/safety of back flow are a bit complicated. If I could use my EV as a battery backup I think I would happily pay for the necessary modifications for my house to use the energy stored in the battery. All this stuff is changing so fast I'm hesitant to invest in any of it for fear that whatever I buy will be obsolete in a couple years. Sounds like it's somewhat complicated and expensive to implement right now but is something that will be more commonly available in the future. ![]() I read a news article about this recently, can't put my fingers on it though.
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