• The process of turning sunshine (photons) into electricity (volts).
  • A renewable means to meet your energy needs!
  • Solar panels convert sunshine into direct-current electricity (DC).

  • The inverter converts the DC into alternating-current (AC).

  • The AC electricity feeds into your building, or directly onto the grid, and is measured by a special meter.

The system cost varies depending on your goals:

  • Ownership: Purchasing a solar system turns your inflating expense (electricity) into an investment that pays dividends. Paying the utility company is like renting your electricity and you will never see a return on investment (ROI). Purchasing a solar system is owning your electricity, and has a financial ROI.

  • Power Purchase Agreement (PPA) (no up-front cost): PPA’s are attractive because they require no down payment. Instead, the building owner agrees to purchase the electricity produced by the solar system at a rate that is lower than the Utility. That means immediate savings for the building owner, with increasing savings over time.

Yes!  In fact, Massachusetts is one of the most solar-friendly states in the U.S., meaning that there are lots of ways you can get assistance purchasing a solar energy system.


  • 30% Tax Credit on total project cost, no cap. This credit is a dollar for dollar reimbursement of Federal tax paid. This credit is redeemed when you receive your yearly tax return.

  • Businesses – Accelerated Depreciation Schedule (MACRS) with bonus depreciation in year-1

State incentives are in addition to Federal, and can include:

  • State Tax Credits

  • SMART Program

  • Sales Tax Exemption

  • Tornado Victim Grant


For more detailed information, check out our Incentives page!

  • 30-year panel production warranty. This means the panels are warrantied to produce at least 80% of the electricity in the 30th year compared to the 1st year.

  • 25-year inverter warranty.

  • 5-year installation warranty.

  • Product and Install warranty better than any home appliance!

Yes, all warranties are transferable.

  • Yes, your building will stay connected to the Utility’s grid.

  • During times when your solar system produces more electricity than your building uses, the electricity will back-feed onto the grid. At nighttime, you will draw electricity from the grid.

  • Note: Panels are robust and constructed to withstand considerable hail impact.

  • Call your insurance company to verify that your system is covered. A “rider” might be necessary.

  • If damage is discovered, Endless Energy will work directly with your insurance company for replacement costs. Endless Energy is not responsible for any solar damage other than installation or manufacturer defect.

  • Following permitting, and depending on project variables and weather, a 20-30 panel system can take 2-3 days to install.

  • The final commissioning occurs about 2-4 weeks after the installation, then the system can be turned on.

  • Little to no maintenance is required because there are no moving parts.

  • Rain and wind will sufficiently clean the surface of the panels.

  • Net metering is a State law that requires the Utility to credit you for excess electricity that back-feeds onto the grid.

  • Monthly electric bill = (electricity used from grid – solar production) – Net Metering Credits (For example, if your system produces electricity during the day when you are gone, and you use electricity from the grid at night when you are home, you would pay the Utility for the net difference between how much electricity your solar system produced and what your building used).

  • You will receive a credit on your electric bill when your system produces more electricity than your building uses in a given month. This credit can be carried forward until it is used, like rollover cell phone minutes. If your solar system produces less electricity than your building uses in a given month, then you would pay the Utility for the aggregate amount of electricity used.

  • Solar produces more electricity in the summer than the winter. Systems that 100% offset a building’s annual electricity bill will accrue Net Metering credits during the summer months, and the credits are then used in the winter months.

  • VNM is when you apply your Net Metering Credits to an electric bill at a different location.

  • The second location must be within the same Utility “load zone.”

No. While battery backup is available, the system will be connected to the grid, and the Utility will credit you for excess electricity via Net Metering.

  • Solar systems will produce electricity in cloudy weather, but the production decreases as cloud and snow coverage thickens. Panels also produce a small amount of heat when the sun comes out which helps the snow slide off.

  • Production estimates for solar systems are geographically specific and take into account weather patterns.

  • The solar system is modular and can be removed for re-roofing, but the best time for a new roof is before the solar system is installed.

  • Roof and structural analysis are included in your site survey.

The solar system shuts off immediately during a power outage in order to protect the Utility linesmen from potential solar electricity back-feeding onto the grid. The system will automatically turn back on as soon as the Utility restores the power.

The inverter keeps track of all production data and can be viewed on the display. You can also track the production on the Internet and smartphone, which we will review with you once the project is installed.

  • No, the system will not provide electricity for your building at night. You will draw electricity from the grid at night

  • The system does technically produce a small current from the ambient moonlight, but not enough to turn on the inverter.

  • Solar electric works on most buildings and properties. Our systems are engineered to work with most roofing materials, where direct sunlight is available, in almost every region of the United States.

  • Each solar module is approximately 5 1/2 feet long and 3 1/4 feet wide, and our smallest system is ten modules.

  • Yes. We take care of obtaining all the necessary permits from your local government and electric utility.

  • The local utility has rules and procedures that must be followed to connect any generator to the grid safely and legally. These rules are generally based on national standards with which our systems comply.