bjhmilla

Thanks for the comments The motivation is kind of a mix of wanting to be as "off grid" as poss but also a bit of protection as this is a v 1850 victorian standalone farmhouse with single glazing and single skin brick walls (no cavity) so you can imagine the heat loss is a nightmare but also things like retrofitting ext or int insulation are a no go because of the listed exterior and the interior features. Heating is currently a mad mix of a few electric rads, oil aga, some rooms oil central heating, some rooms a very old log furnace feeding rads (not auto). Hot water is electric immersion. So the whole heating system needs renewal. With the view that the heat loss is huge, air source HP seems non starter, plenty of land so GS hp is poss but again would this overcome heat loss without mad amounts of new rads and even then no insulation So my view is that we need to aim for as much electric gen in the winter as possible to help offset what will probably end up being a new oil or biomass heating system. Even in the summer when not needing elec heating, pool has an ashp Plenty of space and outbuildings just trying to mitigate the sky high heating bills In terms of feeding back. I know dno likely wont give permission for a system this size to feed in so thought that bit might be a non starter but obvs that would be great if they did allow

Hi folks, appreciate any help you can gove. Moving to a new property with a large field attached so wanted to get a project together for a ground mounted system. Aiming for as close to self sufficiency as possible albeit there will be a grid connection as uk winter not especially conducive to off grid. not worried about feeding back to grid. (Does thst mean you dont need dno permission or do you need thst regardless) Before going to anyone. I wanted to get an idea of what im asking for. Its a large v old house with some electric heating. So not efficient, more places to put power than i could ever generate (move central heating off biofuel/swimming pool etc). But settling around 40kwh per day as a sensible figure to start with. What would a good ground based system look like. I had 20kw in mind, Any advice on the rest ie. Panel brands, Charge controllers, Invertors, 3ph/1ph single or multiple. Suggested battery type and size and number, Mount systems ie. The ones that are static or tilt to increase efficiency. Ill likely end up doing the grunt work. setting the mounts and panels maybe even running some wires in ducting etc as im from a civ eng background but would be getting an installer to do everything electrical but i just want to be armed to get some quotes in so i know what im looking at Thanks in advance