Cost distributions for electricity processes were estimated as follows: generation 60%; transmission, transformation and control 14%; distribution and marketing 26%. With this scheme, the total annual cost will increase from $1,080 million dollars in 2005 to $3,789 million dollars in 2025. The natural gas contribution to the cost will increase from 36% to 42% and the average production cost will rise from $88 USD/MWh in 2005 to $111 USD/MWh in 2025.