COGENERATION

  • The best return-on-investment is achieved, when a big industrial plant is replacing electricity purchases (about R$ 500/MWh) by using its own sub-products or residues for the energy production
  • If electricity is sold to the grid, the revenue will be about R$ 200/MWh

BAGASSE POWER PLANTS

  • 7 % of Brazil ́s energy is generated of bagasse
  • 355 sugar/ethanol plants get 95 % of the electricity of bagasse and sell the rest 60 % of electricity to the grid
  • One ton sugar cane generates 320 kg bagasse
    • Annually 220 million tons bagasse in Brazil
    • Humidity of bagasse is before drying 54-65 % and after drying 50 %
  • Most of grate boilers are designed for low temperatures; only 20% of the energy is utilized for the generation of steam and eletricity

FOREST BIOMASS

  • Brazil is generating 2.800 MWe of forest biomass; black liquor of pulp mills being the biggest source
  • There are only 53 Brazilian biomass power plants, which are using forest residues according to ANEEL (Agência Nacional de Energia Elétrica)
    • Total 438 MWe
    • 0,32% of the national capacity

WASTE-TO-ENERGY POWER PLANTS

  • Solid Recovered Fuel (SRF) is a standardized alternative fuel in Europe
    • No Brazilian standard for SRF (”CDR”)
  • There is one Solid Recovered Fuel (SRF) plant in Brazil
  • Brazilian cement companies prefer to import petcoke instead of SRF;
    • Unlike cement companies in Europe
  • There is not a single waste-to-energy power plant in operation in Brazil
    • In spite of huge amount of waste and huge amount of discussions

BIOGAS PLANTS

  • Municipal solid waste is disposed unsorted into the landfills
  • Methane (CH4) is generated in landfills as waste decomposes
  • 30-40 % of the methane is leaked into the atmosphere and the rest is either burnt in flares or generated into the electricity
  • By biogas Brazil is generating 70MWe, only
    • Most of it: Collection of landfill gas

AMAZON

  • Most of energy in Amazon region is produced by fossil diesel

What ́s Up

  • Eletrobras Amazonas increased electricity tariffs by 40,54% since November 1st, 2015