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i've heard of some business models that install these and have you pay what would be the difference to your electric bill to the company until they pay themselv
by stainablesteel 2y ago
i've heard of some business models that install these and have you pay what would be the difference to your electric bill to the company until they pay themselves off, not sure if the panels last long enough to make that work though
- ccozan 2y agoYes. In Germany they are selling a lot of models, but none, I mean, really, none asked about the rentability. So I went to a neighbour who just installed his 25kW and was very proud and happy, and asked him, in how many years is the return of investment. Siderated, he could not answer and then a few days later, with a very stern face: 25 years or more because if more people install these, the price that the city is paying for the pumped energy goes down. So no. 20kw is not the answer. I showed my setup: 3.5kw + big battery. Pays the bill approx 60 70% of the daily usage. Investment payback : 5years.
- BonoboIO 2y agoDamn, your neighbor got robbed by the installer …
- scotty79 2y agoWhat if he added previous generation crypto miner (so it's cheap) and use the excess electricity instead of selling it to the grid? This could also save some money on heating in winter unless he has a heat pump priced in already.
- PaulDavisThe1st 2y agoprev gen crypto mining is phenomenally inefficient in terms of energy that ends up being converted to heat, but it is absolutely not what you would use to take electricity and create heat given any other choices.
- scotty79 2y agoWhat are other choices? Heat pump is obviously the best but any other thing is just electric heater with 100% efficiently of heat generation. Pushing some bits around doesn't change that. I guess for some applications you might prefer higher temperatures but for residential heating crypto mining is as good as anything else, right?
- ccozan 2y agothis guy is a carpenter :). cryto mining would sound like chinese to him...
- throwaway2037 2y ago25kW? That is crazy huge! How many panels? What does this guys house (mansion!?) look like? Google tells me that average installation size is about 7-8kW.
- ccozan 2y agoIs not that big. you have approx 400W ( mine are 440W) on a 2sqm. Hi sroof is like 15 x 8 m. and is not fully covered. You can easily reach 25kw.
- buckle8017 2y agoYes I think in general those are a better deal for the homeowner. They're a terrible deal for those companies investors though. Presumably at some point they go bankrupt and sell your roof at auction??? weird setup
- dzhiurgis 2y agoOne of these wouldn't sign me up as they couldn't offer any savings (92% of my use is off peak, around 16ct NZD (9 USD) / kWh). A lot of the time such companies pray on people on stupid plans (or those paying thru the nose for "exclusively renewable") power.
- nine_k 2y agoThis exactly the case when a battery would make an immense difference. (9 USD / kWh sounds terrifying. Not only an electric kettle begins to cost you; probably playing computer games at high quality / resolution comes with a noticeable price tag in electricity that the GPU would eat.)
- bruce511 2y agoI think he meant 9 USD cents per kw. (He included ct with NZD but forgot it with USD.)
- throwaway2037 2y agoWoah, your electricity is so cheap! Is it mostly hydro?