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It is not much but I have 800w array over my back deck covering that is not tied into the grid and just runs down to a inverter and 2 kWh lifepo4 battery - it runs my HVAC blower and chest freezer year round and serves as an excellent emergency backup if power goes out.We replaced about 90% of the the grid with solar on our farm which we use for charging the EV, it's the cheapest energy we can get by far, it's not even close any more. The cost per kWh delivered up here has jumped up to ~.12/kWh off-peak - .18/kWh on peak and self-installed, self-generating costs about .025/kWh amortized all in. They are raising the delivery and fixed charge portion of electric bills in many places to try to prevent people jumping off the grid, so more and more of your electric bill becomes a fixed price and the energy use portion a smaller fraction of the total at low use rates to sour people on cheaper self generating. If it gets bad enough we'll have to disconnect the grid altogether and cancel the service, many places in towns/cities have regs that prevent you from utility disconnection though.
My 2 - 150w suitcase panels (300w total) can generate around 200watts at peak.I just trickle charge (Level 1) my Escape PHEV overnight at the moment on the cheap rate. It's 4x cheaper than pump prices right now to fill it's approximate gallon+ amount of battery. If I charged during peak day rates it would still be 2x cheaper... at home.
Commercial chargers seem pretty expensive around here. I have not found one worth plugging into, many around here have an added dollar an hour parking at the charger cost also which means even if I am happy paying the barely break even over gas kWh charge, it goes to triple that because even L2 ain't that fast on these. EVs with fast charging only have the former portion to worry much about though. Freebies are often level 1 only and it's not worth the drama when they just seem to be at the places you will be at for 45mins max, so get what, 2 or 3 miles in.
Solar is getting amazingly cheap and efficient. Just a decade ago you were looking at 15 year payoffs and wondering if you'd have equipment failure first. Now it's a handful of years depending how fancy you get. It seems possible to do a total "roll your own" offgrid that would payoff in a year if you've got something to do with the electric...
So I am thinking of the possibilities these days, maybe something like run a through the wall heat pump, heating or cooling, to offload the furnace/AC a bit, and also dump some in a large battery which can be dumped to vehicle... which is currently away most of the sunshine hours.
I am kinda considering getting a cheap used EV to act as a mobile battery, in that I dump all the solar I can into it and use it for other things. So looking to solve the cheapest/easiest to V2L equation. But also for less than a $1000 the wreckers will sell you some huge vehicle packs with 60 day warranty if you can figure out how to use them.
Another thought is that perovskite cells are getting so efficient, 33% claimed, that it might be worth having "flop out" solar on a roof rack etc, that gets you a kilowatt/hr or two an hour while you're parked.
Anyway yeah, current choices with no facilities at home, is that you can drive a small efficient EV which likely has slow charging, so may cost you extra fees and patience, vs a larger "watt hog" which charges fast but gets half the mileage per watt.... so they still cost basically as much to run as a middling gas drinker.
They are 21% efficient panels, less than a year old and most definitely not Coleman.New tech panels or crappy old Coleman ones which were out of date when they sold them 10 years ago?
Well you were right several years ago, not sure you're right any more.They are 21% efficient panels, less than a year old and most definitely not Coleman.
Even assuming that 50% increase in efficiency - to generate a kWh you would have to cover the entire vehicle AND still have an inverter.
Maybe manufacturers will build panels into PHEVs and EVs but attempting to grab a little charge via solar by using portable panels and an inverter - the juice isn’t worth the squeeze.
Yeah again - the juice isn’t worth the squeeze or you’d actually see people doing it. You haven’t hit on a unique idea, it just isn’t feasible.Well you were right several years ago, not sure you're right any more.
What's the big deal about having an inverter? You make it sound like an endeavor equivalent to taking down the Hoover dam with a teaspoon. Ooooh noooo, big scary inverter. I suppose you're gonna warn me it only works when the sun is out next.
so many of these things are very different for me, in the middle of Kansas. the 3 things I bolded:I just trickle charge (Level 1) my Escape PHEV overnight at the moment on the cheap rate. It's 4x cheaper than pump prices right now to fill it's approximate gallon+ amount of battery. If I charged during peak day rates it would still be 2x cheaper... at home.
Commercial chargers seem pretty expensive around here. I have not found one worth plugging into, many around here have an added dollar an hour parking at the charger cost also which means even if I am happy paying the barely break even over gas kWh charge, it goes to triple that because even L2 ain't that fast on these. EVs with fast charging only have the former portion to worry much about though. Freebies are often level 1 only and it's not worth the drama when they just seem to be at the places you will be at for 45mins max, so get what, 2 or 3 miles in.
Solar is getting amazingly cheap and efficient. Just a decade ago you were looking at 15 year payoffs and wondering if you'd have equipment failure first. Now it's a handful of years depending how fancy you get. It seems possible to do a total "roll your own" offgrid that would payoff in a year if you've got something to do with the electric...