* Please note that you must be an Xcel Energy electric customer. We require a one-year commitment for residential customers. Your premium shows up right on your monthly energy bill.
**Cost per 100 kWh block is $3.53/month, less a credit for fuel costs. In 2013, the net Windsource premium ranged from $0.17 to $0.81 per block, with an average price of $0.53. The fuel cost credit changes monthly, so your actual costs will vary.
***Lighting Calculation: Based on home with 42 light sockets, using a mix of CFLs, LEDs and incandescent bulbs.