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And that paper looks extremely fishy. You can see they tested with 10m/s and 15m/s. I definitely wouldn't want to live at place with average speeds like that. T

And that paper looks extremely fishy. You can see they tested with 10m/s and 15m/s. I definitely wouldn't want to live at place with average speeds like that. Then you need the wind to blow at a very specific angle of 10-15. And they finish it with > This analysis shows that AeroMINEs can be installed at $2,400/kW. Finally, at optimum performance AeroMINE systems can reach a LCOE of 10 C/kWh at just over 5 m/s average annual wind speed, which is highly competitive with a solar PV installation How is the "analysis" showing that? There is no cost analysis in the paper and they never tested speeds of 5 m/s.

marcosdumay 4y ago
> Then you need the wind to blow at a very specific angle of 10-15. It misses the obvious improvement where the platform rotates. I guess this is necessary for their costs target, but I don't think anybody would build this on practice without it. > $2,400/kW Anyway, isn't solar cheaper than that nowadays? I think the entire framing of competing with it is flawed, this should be complementing solar to reduce battery costs.
- samatman 4y ago
  I maintain that the power of an intermittent generator should be considered in terms of watt-hours per year. Which is of course just watts, but collapsing the time terms obscures that it's a mean value, which the Whr/yr refuses to do. Perhaps we could go full acre-foot here, and use the kilowatt-day per year. So a 100,000kWday/yr installation can provide 2kW to 500 homes for a hundred days. Those of you who are aesthetically repelled by batteries using amp-hours instead of joules will really hate this one. But it gets at the difference between maximum continuous power, and total energy delivered per installation. So, big 'it depends'. Anywhere where the wind averages the working speed more often than the sun averages the working luminosity will make wind cheaper in relative terms, and vice versa for solar.
- solraph 4y ago
  Not to negate anything mentioned in the sibling comment, but yes. A home solar installation in Australia is about AUD$1.5 per watt for a complete system (panels, inverter, cabling, installation, sign off, etc) before subsidies. For comparison with the OP system, an average 6kw system producing 8Mwh per year, with a conservative 15 year lifespan works out to AUD$0.075 per kwh. ($1AUD is currently USD$0.65)

marcosdumay 4y ago

> Then you need the wind to blow at a very specific angle of 10-15. It misses the obvious improvement where the platform rotates. I guess this is necessary for their costs target, but I don't think anybody would build this on practice without it. > $2,400/kW Anyway, isn't solar cheaper than that nowadays? I think the entire framing of competing with it is flawed, this should be complementing solar to reduce battery costs.

samatman 4y ago
I maintain that the power of an intermittent generator should be considered in terms of watt-hours per year. Which is of course just watts, but collapsing the time terms obscures that it's a mean value, which the Whr/yr refuses to do. Perhaps we could go full acre-foot here, and use the kilowatt-day per year. So a 100,000kWday/yr installation can provide 2kW to 500 homes for a hundred days. Those of you who are aesthetically repelled by batteries using amp-hours instead of joules will really hate this one. But it gets at the difference between maximum continuous power, and total energy delivered per installation. So, big 'it depends'. Anywhere where the wind averages the working speed more often than the sun averages the working luminosity will make wind cheaper in relative terms, and vice versa for solar.
solraph 4y ago
Not to negate anything mentioned in the sibling comment, but yes. A home solar installation in Australia is about AUD$1.5 per watt for a complete system (panels, inverter, cabling, installation, sign off, etc) before subsidies. For comparison with the OP system, an average 6kw system producing 8Mwh per year, with a conservative 15 year lifespan works out to AUD$0.075 per kwh. ($1AUD is currently USD$0.65)