Investor Presentaiton
Emissions Comparison
Category
Annual Capacity Factor
Annual Electricity
Annual Useful Heat
Footprint Required
Capital Cost
Cost of Power*
Annual Energy Savings
Annual CO2 Savings
Annual NOx Savings
10 MW Natural Gas
10 MW CHP
10 MW Wind
85%
74,446 MWh
103,417 MWh
6,000 sq ft
$20 million
7.6 €/kWh
316,218 MM Btu
42,506 Tons
87.8 Tons
34%
29,784 MWh
None
76,000 sq ft
$24.4 million
7.5 €/kWh
306,871 MMBtu
27,546 Tons
36.4 Tons
Combined Cycle
70%
61,320 MWh
None
N/A
$9.8 million
6.1 €/kWh
163,724 MMBtu
28,233 Tons
61.9 Tons
Table Assumptions: 10 MW Gas Turbine CHP-28% electric efficiency, 68% total efficiency, 15 PPM NOx; Electricity displaces National All Fossil
Average Generation (EGRID 2010)-9,720 Btu/kWh, 1,745 lbs CO2/MWh, 2.3078 lbs NOX/MWh, 6% T&D loss; Thermal displaces 80% efficient on-
site natural gas boiler with 0.1 lb/MMBtu NOx emissions; NGCC NOx emissions = 9 ppm; DOE EIA Annual Energy Outlook 2011 assumptions for
Capacity Factor, Capital cost, and O&M cost of 7 MW utility scale PV, 100 MW utility scale Wind (1.5 to 3 MW modules) and 540 MW NGCC;
Capital charges based on: 7% interest, 30 year life for PV, Wind and NGCC, 9% interest, 20 year life for CHP; CHP and NGCC fuel price =
$6.00/MMBtu.
*The cost of power for CHP is at the point of use; the cost of power for PV, wind and central station combined cycle is at the point of generation
and would need to have transmission and distribution costs added to the totals in the table (2 to 4 €/kWh) to be comparable.View entire presentation