Hi Foks - I had several kind folks reply to my request for experience using green energy suppliers.

4 folks using and happy with Green Mountain -I signed up with them though they are a bit expensive (100% wind, pollution free 8.89c / kWt)

One used Green Mountain then switched to Arcadia for lower rate

One uses Brighten Energy (100% green - 7.39/kWt) - not long enough for a review

A friend of mine rents solar panels which not only pays for her household electrical use but often results in a profit - - benefit of ranch style houses with flat roofs and S SW sunlight :)

Thanks to all who responded.

Diana