Tips for choosing solar companies:
When choosing a solar company, ask yourself the following questions:
Has the company installed grid-connected PV systems? If not, has it installed grid-independent (or stand-alone) PV systems?
Experience in installing grid-connected systems is valuable because some elements of the installation—particularly interconnection with the local utility—are unique to these systems. However, a competent company with off-grid PV experience should not be eliminated just because it has not yet installed grid-connected PV systems. Experience with off-grid systems is valuable too, because grid-independent systems are more technically complex than grid-tied systems.
How many years of experience does the company have installing PV systems?
A contractor who has been in business a long time probably understands how to work with customers and to compete effectively with other firms. Additionally, he/she will probably be aware of the latest code and permitting issues surrounding the installation of PV systems.
Is the company properly licensed or certified?
PV systems should be installed by an appropriately licensed contractor. This usually means that either the installer or a subcontractor has an electrical contractor’s license. Your state electrical board can tell you whether acontractor has a valid electrician’s license.
Local building departments might also require that the installer have a general contractor’s license. Call the city or county where you live for additional information on licensing.
A solar rebate program may require that, in addition to being properly licensed, installers must demonstrate that they have special knowledge about installing PV systems. Special knowledge can be demonstrated through certification by solar industry and/or trade associations.
Does the company have any pending or active judgments or liens against it?
As with any project that requires a contractor, due diligence is recommended. Your state electrical board can tell you about any judgments or complaints against a state-licensed electrician. Consumers should call the city and county where they live for information on how to evaluate contractors. The Better Business Bureau is another source of information.
