Brazil 's auction of wind, hydroelectric and biomass energy will lead to 9.7 billion Brazilian reals ($5.5 billion) of investments in renewable energy, the state-controlled energy research company said Friday.

The auction of alternative energy, negotiated between electricity generators and distributors, and the auction of reserve energy, negotiated between generators and
Brazil 's electricity clearinghouse CCEE, led to the contracting of 2,892 megawatts of new installed capacity, energy research company EPE said in a statement. The auction ended after markets closed Thursday.

Fifty wind farms agreed to sell electricity in the alternative energy auction. In the reserve auction, another 20 wind projects were contracted to supply energy to CCEE, which in turn will sell the energy to consumers as needed.

The average price of wind power at both auctions was BRL130.86 per megawatt/hour. That's 11.8% less than the price generators agreed to sell for during last year's auction of wind energy.

Industry players say cheap financing, localized production and economies of scale mean prices will likely fall further as
Brazil seeks more renewable resources to supplant its dependence on hydroelectric power.

In addition to wind-generated power, which will provide 2,048MW of the total capacity, 12 sugarcane bagasse-burning plants and seven small hydroelectric dams were contracted at the auction of reserve and alternative energy.

The biomass plants sold energy for an average of 144.20, while the small hydropower dams--those with capacity below 30MW each--sold energy for BRL141.93.

The auction represents a "breaking of paradigms in the Brazilian electric sector" because "wind power was among the cheapest energy negotiated," EPE President Mauricio Tolmasquim said in the statement.

The total amount of wind power contracted is an increase from the 1,805 MW hired in a December auction. Future auctions will likely add 2,000-2,500 MW of capacity a year, accounting for one-third of the roughly 6,000 MW Brazil will need to add in capacity annually over the next decade, according to Pedro Perrelli, president of industry group ABEEolica in
Sao Paulo .