Solar energy systems, also known as photovoltaic (PV) systems, use a visible renewable resource - the sun. Solar systems are most effective when they are part of an energy efficient home or business. Purchasing and installing a solar system can be a significant investment for a consumer. We recommend you carefully research the potential investment so you make the right decision. Learn more about the value and criteria of this renewable.
Is Solar Right For Me?
With rooftop solar becoming more popular, we put together information that will help answer any questions you might have. Find out if rooftop solar is right for you, the questions to ask before installation and the necessary steps you should take from start to finish.
Reach out to JCE Co-op to discuss your energy goals. After you choose a contractor, they'll conduct a site visit to assess your property. The contractor usually files the paperwork necessary to have your system approved. Make sure the contractor has been approved by the ICC as a certified distributed generation installer in the state of Illinois. Also, ask if they are certified by the North American Board of Certified Energy Practitioners.
Panels installed on south-facing roofs generate more power than any other direction. However, east- and west-facing systems usually generate enough power to be fully operational.
The roof is the least expensive option and usually gets the most sunshine. Solar panels can be installed on almost any type of roof and almost any roof structure. Four factors to consider are orientation, shading, surface and durability. If your roof is more than 15 years old, you may need to replace it first.
Solar panels can also be pole-mounted or ground-mounted on a concrete base if you have enough land that's free of shade. Another option is to install them on a separate structure like a shed, gazebo or carport.
Every kilowatt (kW) of solar array takes about 75 square feet. For example, a 3 kW array (12 panels) needs a roof area of about 11 feet by 20 feet (two rows of six panels). There may be other variables involved, including the size of panels, shade limits and your budget.
Batteries aren't required because you will be connected to the grid. Excess power goes back into the grid and you can draw from the grid if you need more electricity. Solar power systems incorporating batteries are much more expensive.
Racks are installed on the roof to hold the panels. The panels are then connected to the racks. For metal roofs, the racks are attached directly to the seams with no roof penetrations. On asphalt roofs, each mount is sealed with a long-lasting polymer material to prevent any leaks. A typical rack system weighs less than five pounds per square foot.
Once you've decided on a quote and contractor, contact JCE Co-op to fill out an interconnection application. The co-op will review your proposal and study the system to see how it will impact the distribution grid. If no system modifications are needed the co-op will give you the okay to begin construction. A typical residential project takes one to two days to install panels, inverter(s), racking system and wiring. Once complete, the Authority Having Jurisdiction (AHJ) and the co-op will need to complete an inspection and witness test prior to commencing operation of the facility.
Life expectancy is about 30 years with minimal maintenance required if it's properly installed. Your solar contractor usually takes care of any maintenance. Most solar panels have a 20- to 25-year warranty with inverters warrantied up to 25 years.
Ask the contractor about their licenses, insurance and certifications. Many reputable installers have a solar PV (photovoltaic) certification from the North American Board of Certified Energy Practitioners, but some longtime installers may not have that paperwork. Ask how long the company has been in business and how long its installers have worked in the solar industry.
Each state requires different business licenses and insurance policies, so be sure to check requirements in your state before meeting with a potential contractor. Only allow licensed installers to work on your home, including subcontractors the company may hire. Ask the installer if they plan to use subcontractors, what company they will be hired from, and their professional experience.
Experienced contractors know their solar products. Ask your contractor what products they carry, how they differ, and which one they've selected for your home. They should also determine the age and condition of your roof and let you know if it requires repairs before the installation.
Ask why they've selected the panels and inverter for your home and what experience the installer has with those specific models. If they've successfully installed them multiple times before, there's a good chance they know what they're talking about and are prepared to take on your project.
The best way to gauge a company's past work is to get in touch with previous customers and read reviews. Ask the contractor for examples of other projects they've completed and references from the homeowners. Most reputable companies should be able to provide you with a few phone numbers.
After talking to other customers, search the web for company reviews on reputable websites. Doing diligent research on the company is crucial to understanding exactly what you're getting into before signing on the dotted line.
Get a free quote or bid from the contractor to compare to other companies. Typically, these proposals include the cost of installation, the name of the equipment manufacturer, the warranties provided and more. Don't be fooled by low prices; they could be indicative of poor workmanship and bad customer service.
Ask how long your system will last and what the warranty will cover. The contractor may offer maintenance services or a performance guarantee; that means they'd offer solutions to improve or fix your solar system if it's not operating as expected.
With these guidelines in mind, you'll be better prepared to choose the right contractor that offers quality service and support as they set your home up for green energy production.