Our Team Provided forms with specific questions to be answered by the installers. This allowed us to compare proposals apples to apples. It was a lot of work for our installers but the ones selected rose to the challenge.
Here is a summary of their Proposal
ROOF TOP OR FIXED GROUND MOUNT:
Our Selected installer is Integrated Solar http://isasolar.com
Base Price is $3.75/w
Tiered Price per Watt based upon KW sold by Integrated in our program
Tier 1 0-50Kw sold = $3.75/w
Tier 2 51-100Kw sold = $3.50/w
Tier 3 >100Kw sold = $3.25/w
System Warranty included for first 5 years, Individual Component warranties vary from 10-25 years
no minimum or maximum system size, but price varies based upon size- see adders below
Price Adders for either system include:
Distance – There will be no additional charge for properties located in Dummerston. Properties outside of Dummerston at a distance of more than 20 miles will be charged a travel fee for each mile beyond 20 miles at a rate of $.005/watt/mile.
Electrical Upgrades – All properties differ in the status of the existing electrical service and equipment. Older properties with obsolete, compromised or non-code compliant equipment can require upgrades. These upgrades can only be determined after a review by a master electrician. These additional costs will be determined at the time of the site proposal and will be customized for the given situation.
Monitoring – There will be an additional charge for equipment to provide system monitoring. For string inverter systems the charge will be $900.00. For microinverter systems the charge will be $750.00.
Micro-Inverters – Systems with micro-inverters (rather than string inverters will be charged an additional amount of $.20/Watt.
System Size – These systems smaller than 4 kW will have an additional charge of $.55/Watt. Systems larger than 10kW will receive a price reduction of $.50/Watt.
Roof top Price Adders:
Difficulty – The difficulty of an installation varies based on factors such as, but not limited to, the number of stories, slope of roof, staging requirements, access for vehicles and personnel, obstructions in the area of access (decks, landscaping, other structures), and the location of the solar array from the point of interconnection. These factors need to be assessed for each property and the appropriate charge needs to be determined. ISA agrees that such Difficulty additional charge will not exceed $.75/watt.
Blocking – Blocking of rafters and roof systems can be easy and quick or it can be difficult to access, extensive and take multiple days. These additional costs will be determined at the time of the site proposal and will be customized for the given situation.
Ground Mount Price Adders:
Ground mounted systems will add $1.00/watt to the base system cost.
Extra Ground Trenching – In the event the wire and conduit run for a ground mounted system exceeds 200 feet there will be an additional charge of $5/foot for each foot beyond 200 feet.
System Size- These systems smaller than 7 kW will have an additional charge of $.55/Watt. Systems larger than 15 kW will receive a price reduction of $.50/Watt.
For more detailed information see the completed forms below
Attached are the detailed proposal forms from Integrated Solar, Click on the title of each document below, it will open in a separate tab as a pdf.
Below are links to the other Installer proposals