There are a few available and a wide range of performance track records. The longest running fund that I know of is the KBC Alternative Energy Fund, promoted widely by New Ireland since July 07. Axa Financial have one on their platform run by Jupiter called the climate change solutions fund (mgmt fee 1.45%) Aviva have one run by Blackrock, called the New Energy Fund (mgmt fee 1.5%) Zurich have a Green Resources Fund (mgmt fee 1%) All except the KBC funds have short histories, really just going back to 2009. Performance in the past 12 months has been very poor ranging from -9% to -28%. Given that they have significantly under performed general equity markets by such a large margin there could be an argument that there is value in the sector, but it will require investment from governments who are cutting back on all capital expenditure at the moment.
I can email you performance charts if you pm me. Don't know how to attach them directly to this site.