Hybrid CSTP/Natural Gas Power Plant Under Construction In Florida

The following information supplements the post of December 7, 2008 on a co-located solar/natural gas-fired power plant in Indiantown, Florida.

Co-locating industrial-scale solar power plants with existing fossil-fuel fired power plants can be an economical solution to power transmission and other problems. Co-location allows clean energy to be phased in as fossil-fuel energy is phased out, with the fossil-fuel energy plant becoming a backup, then eventually becoming unnecessary as solar heat storage technology improves.

Solar radiation is available onsite, whereas fossil fuels must be continually mined and transported to the old-technology plant. Co-locating solar power on the existing plant site takes advantage of transmission infrastructure already in place, avoiding costs of building extensive new transmission lines. Solar power plants avoid many of the water-use and land- and water-pollution problems of old-technology power plants. Thus, opportunities for land and water systems restoration after abandoning fossil-fuel power plants will increase substantially.

Lauren Engineers & Constructors and Florida Power & Light Company Building Martin Next Generation Solar Energy Center in Indiantown, Florida.

Lauren Engineers & Constructors is working with NextEra Energy Resources, a Florida Power & Light Company (FPL) Group Company on a new 75-megawatt (MW) concentrating solar thermal power (CSTP or CSP) facility.

The CSTP part of the facility will employ parabolic trough mirror technology and include approximately 180,000 parabolic mirrors on 500 acres of land. Solar power output is expected to be 155,000 megawatt-hours (MWhr) annually.

Artist's Conception of the FPL Martin Concentrating Solar Thermal/Natural Gas-Fired Power Plant, Indiantown, Florida.

Lauren Engineers & Constructors also worked with ACCIONA to build the Nevada Solar One Power Plant, a 64 MW parabolic mirror facility located in Boulder City, Nevada. This plant went online in June, 2007.








Nevada Solar One Concentrating Solar Thermal Power (CSTP) Plant, Boulder City, Nevada. This facility uses parabolic mirror technology and 182,000 curved mirrors, occupies 400 acres of land, and generates 64 megawatts (MW) of power. The plant began operating in June, 2007. Photograph: CNET News, March 12, 2007.


















Detail views of Nevada Solar One CSTP Plant showing parabolic mirror arrangement. The parabolic mirrors are aligned on north-south axes, and rotate from east to west throughout the day to track the sun. The mirrors focus sunlight on an oil-filled pipe that carries the heated oil to a heat exchanger. The heat exchanger creates steam that powers an electricity-generating turbine. Photographs: Acciona U.S. Projects.