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New floating PV plant on Sobradinho Hydroelectric Dam

Asharq Alawsat

Sobradinho hydroelectric plant, located in the state of Bahia, Brazil, has been upgraded with a floating solar system developed by Ciel & Terre, in partnership with SUNLUTION. The combination of the two energy sources - solar and hydro hopes to provide an answer to the region's electricity consumption needs.

After the 305 kWp floating solar plant installed on Gois farm, Sobradinho Dams floating solar array is the first in the country to reach the MW-scale. With its 3792 panels, the floating solar facility is expected to produce 1.7 MWh per year. The Hydrelio floating solar system was produced locally in Brazil.

Sobradinho Dams floating solar plant capacity should increase by 1.5 MWp by January 2020. The facility is then projected to reach 2.5 MWp and produce more than 4.2 MWh per annum.

Ciel & Terre designed a bottom anchor system specifically for the project, which is elastic and capable of supporting a water level variation of 13m.


Rafael Herzberg's picture
Rafael Herzberg on Oct 18, 2019 11:53 am GMT

4.2 MWh per annum is not consistent with the 2.5 MW capacity. Make sure to review it. The units are not correct and by far.


Matt Chester's picture
Matt Chester on Oct 18, 2019 12:49 pm GMT

Good eye, and wen doing a Google search for more information on this plant I'm only seeing the same numbers which are obviously not right (I know solar has a lower capacity factor, but <2 hours per year seems a tad  low!

Rafael Herzberg's picture
Rafael Herzberg on Oct 18, 2019 9:34 pm GMT

My guess is 4,2 GWh per year and not 4.1 MWh:

  • Hours per year: 8 760
  • Percentage of insolation converted into PV electricty: 18%
  • 8 760 h/year x 18% x 2,5 MW = 3,9 GWh/year (pretty close to 4,2)

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