The average annual investment in the power sector under the Energy [R]evolution scenario from today to 2050 would be $ 1,260 billion, compared to $ 555 billion in the Reference case. ??? Fuel costs savings: Because renewable energy, except biomass, has no fuel costs, the fuel cost savings in the Energy [R]evolution scenario reach a total of $ 52,800 billion up to 2050, or $ 1320 billion per year.