Tue, 19 Dec 2023 08:39:40 +0000 http://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300171#Comment_300171 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300171#Comment_300171 Tue, 07 Feb 2023 13:08:10 +0000 cjard https://re.jrc.ec.europa.eu/pvg_tools/en/

PVGIS indicates I'd need a 40kw array to cover 100% of my winter demand (simplistic - I assume I can always generate, store and recover enough daily) which is quite a whack. I haven't yet run the sums to see what a sensible array size would be to summer generate, sell surplus to grid, use money to offset winter draw from grid, but I suspect it might still be a chunky array.

I'm interested to know, for a given size of turbine, what wind based power production would be for my location (anecdotally it's the first hill since the beach and typically quite windy) so I can do an ROI compare against solar.. I just can't find a decent calc]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300173#Comment_300173 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300173#Comment_300173 Tue, 07 Feb 2023 13:10:17 +0000 Dominic Cooney https://www.rensmart.com/Information/NOABLModel]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300174#Comment_300174 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300174#Comment_300174 Tue, 07 Feb 2023 13:12:20 +0000 Dominic Cooney There is no susbstitute for on-site wind speed monitoring though, in the exact location and height.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300178#Comment_300178 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300178#Comment_300178 Tue, 07 Feb 2023 15:49:45 +0000 fostertom Posted By: Dominic CooneyThere is no susbstitute for on-site wind speed monitoring though, in the exact location and heightYeah, but Meteonorm will calc a climate file incl wind speeds (but sadly not wind direction) for any location on Earth, based on same multiple sources as PVGIS - satellite, weather stations etc.]]> http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300179#Comment_300179 http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=17735&Focus=300179#Comment_300179 Tue, 07 Feb 2023 16:10:30 +0000 Gareth J
As general rules; "cleaner" wind is better. Obstacles and stormy weather cause hard to harness gusts and turbulence. A clear site, free from trees, buildings and whatnot is important. And obviously, higher is better

All that said, yes, you can use the above linked rensmart map with the manufacturers data. When doing this with my own machine, I get about 75% of expected annual production. Or, the wind map overpredicts by 0.5m/s, which ever way you look at it.

Something else to consider; there are runs of days when the turbine makes no meaningful production.]]>