(22-04-2022, 05:21 PM)Wainuiguy Wrote: (22-04-2022, 05:08 PM)harm_less Wrote: The Agrivoltaics example I posted a link to earlier was a case of possibilities for those areas where horticultural land warrants dual productivity. I would argue that the horticultural intensity in NZ is not of a level that makes such development necessary and/or feasible.
Not familiar with which hydro scheme you are referring to as you provide no references to it but I would suggest that the carbon load of the concrete and construction required would be a consideration in its environmental viability. The construction and materials input of a solar farm would be very minor in comparison.
Virtually all of the energy sources we use here in NZ have a solar origin. Hydro is reliant on rainfall that results from sun driven weather, as is the case for wind and wave activity. Fossil fuels are the result of photosynthetic activity from Earth's prehistoric past which are compressed and concentrated by geological activity over the eons.  Tidal energy is more driven by lunar influences, but still cosmic in origin.
Nuclear is our replication of the sun's energy production mechanism but obviously not part of NZ's energy generation for the foreseeable future.
Can't recall the name but it was the one on the west coast.  1000 hectares buried under steel and glass - sounds like a pretty big environmental impact right there.
Did you miss the bit in the article in the OP about the solar farm including "sheep grazing, cropping, pollinator planting and beekeeping"? Pretty difficult to do those activities in a flooded valley. And the solar farm will retire land from its current dairy farming use which arguably a questionable activity on pumice based soils.
(22-04-2022, 05:36 PM)Wainuiguy Wrote: (22-04-2022, 05:25 PM)king1 Wrote: maybe this one
https://www.westpower.co.nz/news/article...u-informed
No because the one I was thinking of was delined a number of years ago.
This one I believe.
https://www.rnz.co.nz/news/te-manu-korih...ati-waewae
So, how many hectares would the dam have inundated. Considering it was designed to produce "20 megahertz [sic] of electricity", which I assume was meant to be 20 MW it would have had 1/20 of the generating capacity of Nova's planned solar installation so the comparative generation capacity was likely to be a no-contest on a MW/ha basis.
