Fran learned engineering while working summers during college, has many years of bio-medical research and teaching experience, over 17 years of PV system design and installation experience, etc. Our home, office and this web site are PV powered. In 1984 we stopped doing the Bulk Buy because we could not afford to subsidize other people's PV systems with our own time and money. Recent price increases are discouraging, but friends have asked us to continue doing the Bulk Buy. We will keep shopping for good deals as long as you think this service is needed.
All equipment is new, first quality and carries the manufacturer's warranty.
Module warranties range from 20 to 25 years on power output. A 25 year warranty module does not last longer than a 20 year warranty module. Long warranties are a marketing gimmick. A 30 year design life for PV systems is realistic. Modules will likely last longer.