Performance of solar electric generating systems on the utility grid
The first year of performance of the Solar Electric Generating System I (SEGS I), which has been operating on the Southern California Edison (SCE) grid since December 1984 is discussed. The solar field, comprised of 71,680 m/sup 2/ of Luz parabolic trough line-focus solar collectors, supplies thermal energy at approx. 585/sup 0/F to the thermal storage tank. This energy is then used to generate saturated steam at 550 psia and 477/sup 0/F which passes through an independent natural gas-fired superheater and is brought to 780/sup 0/F superheat. The solar collector assembly (SCA) is the primary building block of this modular system. A single SCA consists of a row of eight parabolic trough collectors, a single drive motor, and a local microprocessor control unit. The basic components of the parabolic trough collector are a mirrored glass reflector, a unique and highly efficient heat collection element, and a tracking/positioning system. The heat collector element contains a stainless steel absorber tube coated with black chrome selective surface and is contained within an evacuated cylindrical glass envelope. The plant has reached the design capacity of 14.7 MW and, on a continuous basis, provides approx. 13.8 MW of net power during the utility's on-peak periods (nominally 12:00 noon to 6:00 p.m. during the summer weekdays and 5:00 p.m. to 10:00 p.m. during the winter weekdays).
- OSTI ID:
- 5537386
- Report Number(s):
- CONF-860610-
- Journal Information:
- Trans. Am. Nucl. Soc.; (United States), Vol. 52; Conference: American Nuclear Society annual meeting, Reno, NV, USA, 15 Jun 1986
- Country of Publication:
- United States
- Language:
- English
Similar Records
Finite element modeling of concentrating solar collectors for evauation of gravity loads, bending, and optical characterization.
Test results: SEGS LS-2 solar collector
Related Subjects
SOLAR THERMAL POWER PLANTS
OPERATION
PERFORMANCE
COMPUTERIZED CONTROL SYSTEMS
MICROPROCESSORS
PARABOLIC TROUGH COLLECTORS
COMPUTERS
CONCENTRATING COLLECTORS
CONTROL SYSTEMS
ELECTRONIC CIRCUITS
EQUIPMENT
MICROELECTRONIC CIRCUITS
PARABOLIC COLLECTORS
POWER PLANTS
SOLAR COLLECTORS
SOLAR EQUIPMENT
SOLAR POWER PLANTS
THERMAL POWER PLANTS
140702* - Solar Thermal Power Systems- Central Receiver