I had a great deal of mega smugness on Christmas day, the whole 24 hours run on 7.5p kWh and today, we wont be using any grid electricity at all.remember that its not a purely ROI based on money, there is also return on smugness (ROS ?) when your running of your own generated power all day and night, which for me is worth 2x the ROI in money terms
binky said:
That is certainly efficient and rather neat.
Upgrade to LifeP04 batteries, way better than LiPo, Fogstar in the UK are great supplier, good prices etc etc.
it's not £210, as you have spent £thousands on the gear and that all has a limited lifespan, so you need to divide the lifespan into plant cost to get a yearly figure, plus add any maintenance costs. Now , its fair to say, if you are in an off-grid place and getting a grid connection will cost say £10k or more, then the money spent on gear is offset against that cost, and it's also fair to say last time I did any numbers for a client was around 8 years ago, long before energy price hikes. It's also fair to say the customers I was talking to wanted all green energy, and no gennies, which makes it very hard to achieve as you have to over spec everything to cover a long spell of bad weather, and they all had a grid connection already, so the plant cost wasn't merited at the time. Those clients were also heavy energy users, way in excess of your 12kW a day - I use less than that, but heating is gas/ woodburners. 12kW I would say is quite low in this day and age and quite achievable as you already know. I'm guessing your heating is via woodbuners or the like?
Dont worry about the 'noisy' pro's, keep us updated, sounds interesting and route I may be pursuing myself soon.
Maybe a new forum should be created here for green heating systems and controls. (Admin?)
We only shoot down idiots who impersonate being competent whilst charging people money for their ignorance.
