Years in business

> 8


There are no pros noted


Review score is below industry average of 3.96


NABCEP qualified installer


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Diamond Energy Group prices

This installer does not publish their standard system prices on the net.

As such we have used average pricing from the installers service areas as a proxy for what this company would most likely charge for a solar system.

System size


Average cost per watt


Net cost of system

$13,028 - $15,924

Average payback time

Annual power production

11,794 kWh

Levelized cost of solar energy

Levelized cost per kWh is the cost of the solar system divided by the total number of kWh produced by a solar system over it’s lifetime.

5¢ kWh

If you don't get solar

34¢ kWh

Forecast average NY electric rates over the next 25 years

Installers description for their business

Here at Diamond Energy Group, our mission is to advocate for homeowners to ensure they receive the best value available in home solutions; while providing an unprecedented guarantee of satisfaction and service.

Brands sold



Commack, Long Island NY, 11725


(click to reveal) ..3447


Diamond Energy Group

Office locations

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NEW YORK - Long Island

Commack, Long Island NY, 11725

Service locations

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Service Types

Residential solar - Grid tied

Small commercial solar - Grid tied

Energy audits

Residential solar - Hybrid solar systems

Energy monitoring

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