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Thanks @svetz thats really helpful. Perhaps not thinking too far ahead is better. Having considered the figures I think I can perhaps look at the solar/hydrogen option again. Use it to produce hydrogen which I can keep longer and cheaper than excessive batteries and use that top up the...

Going to preface this with I am fresh out the box to power generation but willing to learn and being a programmer feel the logical mindset will help me process info. I am looking to build an off grid passive house in northern England (54.0270887, -2.825434). I have been looking at the best way...

Hi Tom, I do not want to use a generator. I would like to be completely carbon neutral. Which I know can be achieved in a number of ways but for my definition I would prefer no carbon use at all. That was why I was looking at the addition of hydrogen fuel cells but the cost of electrolysis...

Has anyone used PVGIS (https://re.jrc.ec.europa.eu/pvg_tools/en/tools.html) before? I'm getting figures that are significantly different to pvwatts, and significantly different figures from one option to the next within the PVGIS system itself. Also, how accurate is pvwatts? I know its a model...

PVwatts is telling my that optimal angle for December is ~75 degrees 180 Azimuth, whereas PVGIS (offgid option) is saying that 0 degrees is best but then on grid tied option is saying ~75 degrees again but azimuth of 1. Massively confusing me!

How is the project going? Have they lived up-to expectation?

Fantastic! That’s really good to hear.

I do intend to see if I can get any information from the solar farm as that’ll help greatly. It is windy and the area is actually designated by the council as a suitable area for wind turbines however when I was first looking at turbines perhaps I was looking at too large a system and as such...

I have already spoken to them. They aren’t selling outside of Germany at the moment. Had they, perhaps there would be a conversation to have and some moving of number as it’s a one stop shop but unfortunately not to be.