quinta-feira, 13 de fevereiro de 2020

A energia solar na Wikipedia


https://pt.wikipedia.org/wiki/Energia_solar_fotovoltaica

https://en.wikipedia.org/wiki/Photovoltaics

"PV has become the cheapest source of electrical power in regions with a high potential, with price bids as low as 0.01567 US$/kWh[1] in 2020. Panel prices have dropped by the factor of 10 within a decade. This competitiveness opens the path to a global transition to sustainable energy which would be required help to mitigate global warming. The situation is urgent: The emissions budget for CO
2
to meet the 1.5 degree target would be used up in 2028 if emissions remain on the current level. However, the use of PV as a main source requires energy storage systems or global distribution by High-voltage direct current power lines causing additional costs. "


https://en.wikipedia.org/wiki/Cost_of_electricity_by_source

Capital costs[edit]

For power generation capacity capital costs are often expressed as overnight cost per watt. Estimated costs are:
  • gas/oil combined cycle power plant - $1000/kW (2019)[10]
  • onshore wind - $1600/kW (2019)[10]
  • offshore wind - $6500/kW (2019)[10]
  • solar PV (fixed) - $1060/kW (utility),[11] $1800/kW (2019)[10]
  • solar PV (tracking)- $1130/kW (utility)[11] $2000/kW (2019)[10]
  • battery storage power - $2000/kW (2019)[10]
  • conventional hydropower - $2680/kW (2019)[10]
  • geothermal - $2800/kW (2019)[10]
  • coal (with SO2 and NOx controls)- $3500–3800/kW[12]
  • advanced nuclear - $6000/kW (2019)[10]
  • fuel cells - $7200/kW (2019)[10]

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