Yeah, 3 hours wouldn’t be enough to be independent if it’s a prolongated period. Not for that house and their amount of freezers (few mostly organic farmers around so they get most veg fresh and then freeze sufficient until next harvest).

Stupidly enough that means they would still need to pay for connection to the grid all year long. Even if just needed for some months.

Maybe it’s worth considering building a little shed with battery storage so they can cut that dependency. Don’t think the ROI would be awesome though, solar is a very longterm project. And a new installation wouldn’t be subsidized anymore, unlike their original one which cut the investment by multiple years before ROI.

Luckily, Belgium has no plans to cut off selling back to the grid. Unlike the UK.

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