Member-Owned Solar FAQ

How can I know if a solar PV system will work on my house?

To begin, you can look at factors such as:

  • Which direction your home faces
  • The condition of your roof
  • Obstructions such as trees and other buildings that may block the sun during the peak generation period of 9 a.m. to 3 p.m.

Solar contractors can provide a more detailed analysis on what to expect, and your cooperative can offer advice, too.

How long do solar PV systems last?

Certified PV products and systems generally are reliable:

  • They have a life expectancy of about 20 to 30 years
  • Manufacturers test PV panels for hail impact, high wind, and freeze-thaw cycles to represent real-life situations
  • Most manufacturers offer 20- to 25-year warranties for panels; extended warranties may be available at an extra cost

Little maintenance is required; occasionally it may be necessary to rinse modules off with water to remove dust and grime. Other components, like inverters, may have a shorter life. PV panels may outlast the roof they are attached to. Make sure your roof is in good shape or budget for replacement during the life of the system.

How long is the payback period on a solar PV system?

The payback period can range from fewer than 10 years to more than 20 years, depending on:

  • The system cost
  • Available rebates and incentives
  • The amount of electricity produced
  • The retail price of electricity you purchase from your cooperative
Are there incentives and tax credits for installing solar PV systems?

Yes. There may be a federal tax credit of 30%. In addition, there may be:

  • State or local income tax credits
  • Property tax exemptions
  • Rebate programs from government agencies

These vary by national, state, city and utility, and may also depend on whether the system is purchased or leased.

Find information about Ohio’s programs on the DSIRE website. Be sure to consult with your financial and tax advisor. Be sure to research the Department of Energy, IRS, or DSIRE websites for the latest status of incentives or credits.

How much does a solar PV system cost?

The price of PV components varies depending on:

  • The size of the system (generating capacity)
  • Type and quality of the components purchased
  • Complexity of the system selected

The good news for consumers is that the cost of PV has declined dramatically, while the technology has improved, equally dramatically. Installation costs depend on the size and complexity of the system, but also on the home layout and construction. For example, a simple, south-facing roof allows for an easier install than a roof with hips and valleys. In addition, some homes require structural or wiring upgrades.

Average costs:

  • An average 4 kW system may cost between $10,000 and $20,000, before credits and incentives
  • This is based on a typical installed cost of $2.50 to $5 per watt of distributed generation capacity
  • To determine your costs, look for online calculators to help you estimate your pricing, and also get bids from reputable installers
What happens with a solar PV system during power outages?

Most grid-connected PV systems shut down to prevent backfeeding electricity into de-energized power lines that may have fallen or that line crew members may be working on. It’s important to have this shut-down feature to prevent injuries—and even death — to those working on the line.

What happens with a solar PV system at night and on cloudy days?

Battery-backed or grid-independent systems use on-site energy storage to store excess generation produced during the day for use at night or when the sun is not producing enough power. Choosing this option will add significant cost and maintenance to your system.

Most people opt for grid-connected systems for:

  • Reduced cost
  • Maintenance
  • High reliability

With this type of system, your cooperative continues to provide energy to you when you need it 24-7. Your PV system will produce energy, and even excess generation, on sunny days. Your system will not collect sunlight at night and on cloudy days. That means, you will continue to draw electricity from your cooperative during these times.

How do we generate electricity from the sun?

Solar energy systems work when sunlight hits a solar photovoltaic module (solar panel or PV panel) and causes electric current to flow. The current produced from the PV panels is controlled and regulated by an inverter, which converts direct current (DC) to alternating current (AC), needed for use by household appliances. The electrical panel is where the power gets distributed throughout your house; any excess electricity may be sent from the panel back to South Central Power’s electrical grid.