Talk:Penzhin Tidal Power Plant Project

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Cost? — Preceding unsigned comment added by 78.87.104.40 (talk) 05:40, 19 July 2015 (UTC)Reply

Miskeading figures? edit

Latest comment: 14 days ago3 comments3 people in discussion

The article reads “One of proposed variants presumes an installed capacity 87 GW and annual production 200 TWh of electricity.” However, this is physically impossible and a very simple calculation shall prove it: even assuming an unreachable 100% capacity factor (i.e., all turbines generate at maximum power 24 h/day during the whole year), 87×24×365 = 762120 MWh = 0.76 TWh. Perhaps it should read 200 GWh, implying a 26.2% capacity factor which is consistent with Sihwa Lake Tidal Power Station at 24.8. Please fix! 190.195.158.232 (talk) 19:39, 22 July 2021 (UTC)Reply

Aren't you off by a factor of thousand? Wouldn't it be more like 87×24×365 = 762120 GWh? -- marilyn.hanson (talk) 23:17, 11 October 2022 (UTC)Reply

Yes, their calculation is wrong and it's a good example of why not to leave out units when performing calculations. 87 GW * 1 year = 87 GW * 8760 h = 762120 GWh ≃ 762 TWh. When the units (and prefixes) are left in the calculation becomes self-correcting, and you avoid for example ending up off by three orders of magnitude... 2A00:801:733:5AAE:B94F:BE1F:7FB5:7940 (talk) 03:05, 12 May 2024 (UTC)Reply

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