A CCEE survey, looking at the last five years, showed that the final cost of wind turbines in wind farms is the lowest.
The cheapest renewable generation in Brazil is wind energy, according to a survey by the CCEE – Electric Power Chamber of Commerce, which analyzed data from the last five years of the chamber and used Aneel’s guidelines to present the final cost to the consumer of the energy produced by all renewable resources.
According to CCEE’s analysis, wind farms had the lowest costs due to lower prices in regulated auctions, and this even when the additional values ??of the source are included, such as the cost of dispatching the thermal power plants and the control of secondary frequency.
In 2016, wind power had its highest cost, of R $ 231 / MWh, due to the additional 25% resulting from the activation of thermal power plants, but it was still the cheapest. In 2019, the final cost was R $ 195 / MWh.
The second cheapest source, according to the survey, was thermal biomass, with a cost characterized exclusively by the contracting of auctions, whose average price was R $ 253.5 / MWh, and in 2019 the cost was R $ 246, 2 / MWh.
Third, Small Hydroelectric Power Plants (PCH). Even with lower values ??practiced in auctions, they ended up with a higher final cost between 2015 and 2019 due to the water deficit of the period. 2017 was the worst year for SHPs, with R $ 338.8 / MWh, due to the 39.5% increase in the cost caused by the renegotiation of the hydrological risk and 21% due to the energy deficit in the Reassignment Market in Energy (MRE).
Finally, the generation of solar energy continues to have the highest cost, since the plants in operation were the first to be contracted in high-priced auctions. With data from 2017, the source for that year had a final cost of R $ 314.4 / MWh. In 2018, R $ 318.8 / MWh and in 2019, R $ 321.5 / MWh.
For the compilation, the CCEE considered the average costs of auctions, dispatch of thermoelectric plants, secondary frequency control, energy surplus / deficit in the ERM, displacement of hydroelectric generation, and renegotiation of hydrological risk.