Ok, just to straighten this out; what IRR at what subsidy free price would such a New Mexico plant achieve with FS modules?
I ran a quick and dirty calculation WITHOUT ITC For a single-axis installation:
PPA rate: 8.3 uscent/kWh escalated at 3%/year for 20 years
Capex: $2140/kWdc, this includes 25% gross margin for FS (plant COGS= $1712/kWdc)
Opex: 1% of Capex, escalated at 2% annually
Yield: 2188 kWh/kWdc, annual degradation of 0.5%
Project IRR: 6.8%
Equity IRR: 10.1% at 80/20 Debt/Equity and Debt cost of 6%
I will try and do an in-depth LCOE comparison between FS and c-Si over the next weeks and would also appreciate your feedback/input