use this URL to access the pull down menues....well organized.
Two things stand out:
First, they have a tremendous amount of all forms of renewable energy, the bulk in hydro generated , 177,091 GigaWattHours generated and 31,610 GigaWattHours purchased.
Second, Green Mountain Power buys H-Q electricity at the Vermont border for 5.549 c/kWh. I believe this is a 20 year fixed price contract; unlike wind contracts which start cheep and escalate annually.