Paul,
Maybe this will help.
SOLAR ELECTRICAL CONTRACTING
Who can install residential and commercial PV systems in Florida?
“PV Systems.. are primarily electrical in nature” – ECLB - May 2004
Draft Summary 8/18/2009
RESIDENTIAL PV SYSTEMS:
Residential Defined as: "one family, two family, or three family residences not exceeding two stories in height" see 61G4-15.021
ECLB
The license category(s) under the ECLB allowed to contract or install residential PV systems is the CEC "Certified Unlimited Electrical Contractor" and the registered EC license. See minutes of the May 2008 combined ECLB/CILB meeting.
Also From Executive Summary of the ECLB meeting May 2004
"After a review of F.S. 489 part I & II, Board concluded that all components of photovoltaic systems are within the scope of, and can be completed by electrical contractors."
Roof attachments are considered to be components of a PV system and are within the scope of the EC. Contrary to a report issued by FLASEIA/FLASEREF subcontracting for the roof attachments is not currently and has never been a requirement.
CILB
The only license category under the CILB allowed to install residential PV systems is the CV license, this license was created in 1992 in conjunction with the ECLB, the solar electrical scope of the license is limited to the PV supply side "From the collector to the inverter on a residential project" -see minutes of the May 2008 combined ECLB/CILB meeting, FS 489.113(3)(f) & 61G4-15.021.
The CV must hire an electrical contractor on all residential projects to install the inverter output circuit (ac circuit wiring) from the ac side of the inverter to the main supply panel or line side tap.
Based on this definition the CV is not allowed to install the ac circuit wiring on dc to ac micro-inverters (i.e. enphase) since the inverters are individually connected to each other with ac circuit wiring (usually 120/240 or 208 Vac) under the PV collectors, and the ac circuit wiring must be connected from inverter to inverter before the PV collectors are installed on a flush roof mounted installation.
The CV is also not allowed under the same definition to install the ac circuit wiring on ac PV Collectors – All dc supply side wiring along with the inverter is contained within the collector itself and the collector output is usually 120/240 or 208 Vac. See (ac) module section of NEC 690.6
COMMERCIAL PV SYSTEMS:
Commercial Defined as: other than “one family, two family, or three family residences not exceeding two stories in height"
ECLB
The only license category(s) under the ECLB allowed to contract or install commercial PV systems is the CEC "Certified Unlimited Electrical Contractor" and the registered EC license.
CILB
As it stands currently there is no license category under the CILB which is allowed to contract, act as prime contractor (where the majority of the work performed is limited to solar electrical contracting only), or install commercial PV systems. FS 489.113
Neal Burdick
COT Inspector II