Several hybrid and solar-only configurations for molten-salt power towers were evaluated with a simple economic model, appropriate for screening analysis. The solar specific aspects of these plants were highlighted. In general, hybrid power towers were shown to be economically superior to solar-only plants with the same field size. Furthermore, the power-booster hybrid approach was generally preferred over the fuel-saver hybrid approach. Using today`s power tower technology, economic viability for the solar power-boost occurs at fuel costs in the neighborhood of $2.60/MBtu to $4.40/ MBtu (low heating value) depending on whether coal-based or gas-turbine-based technology is being offset. The cost Of CO[sub 2] avoidance was also calculated for solar cases in which the fossil fuel cost was too low for solar to be economically viable. The avoidance costs are competitive with other proposed methods of removing CO[sub 2] from fossil-fired power plants.
[1]
Thomas A. Williams,et al.
Combined-cycle power tower
,
1994
.
[2]
Kornelis Blok,et al.
Carbon dioxide recovery from industrial processes
,
1995
.
[3]
C J Chiang.
SUNBURN: A computer code for evaluating the economic viability of hybrid solar central receiver electric power plants
,
1987
.
[4]
J. P. Sutherland.
SOLAR CENTRAL RECEIVER TECHNOLOGY : THE SOLAR TWO PROJECT
,
1996
.
[5]
J. A. Dirks,et al.
SOLERGY; A computer code for calculating the annual energy from central receiver power plants
,
1987
.
[6]
Dennis Anderson,et al.
The case for solar energy investments
,
1995
.
[7]
E. Lewis.
INDIA'S REFINING PROSPECTS LINKED TO ECONOMIC GROWTH
,
1996
.