Generation Resources

A supercritical pulverized coal (SCPC) generating unit was selected for the project to meet the partners’ future need for base load generation at the scale required. However, the partners continue to diversify their portfolio of generation and energy efficiency resources to meet their consumers’ needs.

Natural Gas
Tri-State recently added 220 MW of combined cycle natural gas capacity in eastern Colorado. Forty-eight percent of Sunflower and Mid-Kansas’ generating capacity comes from natural gas.

Wind
Sunflower and Mid-Kansas contract for a combined 125 MW of Kansas wind. Tri-State is currently developing a 51-MW wind farm in eastern Colorado.

Solar
With First Solar, Tri-State is developing the Cimarron I Solar Project in northeastern New Mexico. Once fully operational in December of 2010, the 500,000 photovoltaic-panel facility will generate 30 MW of electricity.

Hydroelectric
Thirteen percent of Tri-State’s energy comes from renewable hydropower.

Biomass
Mid-Kansas intends to sign a power purchase agreement with Abengoa Bioenergy Hybrid of Kansas, LLC, for 75 MW of base load generation. The energy will be generated at an electric generation and cellulosic ethanol plant and will use biomass and crop residue as a fuel source.

Energy Efficiency
Tri-State offers the Energy Efficiency Credits program to its member cooperatives and in 2008 reimbursed nearly $2 million to residents and businesses who made energy-wise purchases. Midwest Energy’s How$mart® energy saving program has surpassed $1 million in energy efficiency investments by providing low-cost capital to Midwest Energy customers, allowing them to improve the energy efficiency of their home or business.

Technology Selection

Power Plant Design and Operation

Power Plant Major Components