WiFi,
I can't remember the last time I sold a solar module with less than an "80% of original production" warranty period of 25 years. This is the current standard, not the exception. The solar panels (aka modules) that I choose to sell are all made by well vetted companies (LG, SolarWorld, Canadian Solar, Prism, Hanwha) that produce their products either domestically or in the countries of one of our well trusted allies. In general the industry assumption is that a solar array will still be producing a bulk of it's original rated power for 40+ years. Investing in solar power is a solid investment for both the individual and businesses alike and the move by the Co-op would seem to re-enforce that.
A few more sundry facts, much of the power for Interlakes High in Meredith comes from a solar array at the north side of the track behind the school, the municipal buildings for the Town of Durham are powered by a 2,100 module array they own in a gravel pit in Lee, and the Town of Hanover has committed to a goal of 100% of their energy coming from renewable sources by 2030. These are facts and/or achievable goals. Renewable energy, and solar power in particular, has recently come into it's own and is a viable and economical alternative to just pulling from the grid. One more tidbit, employment in NH due to the solar related industries grew 17 fold last year. I wonder how many lakes region folks will be making a living on Moultonboro Neck Rd :-)
I am a Co-op customer and happy to be one. The monthly membership fee of $29 seems a little stiff, but in every other way they seem to be progressive and forward thinking. Again I applaud them for their decision and commitment to locally produced renewable energy.
For those that are interested here is a link to the NHEC press release concerning the Moultonboro project;
https://www.nhec.com/nhec-breaks-gro...t-solar-array/ and here is a link to the warranty for the Washington State manufactured SolarWorld modules;
https://www.google.com/search?q=sola...hrome&ie=UTF-8
Cheers!