Solar systems require little maintenance due primarily to having no moving parts. A tracking system of a pole mount array does contain moving parts and has the potential to require maintenance. Many battery backup systems also require maintenance to ensure battery longevity. Work with your installer to set up an operation and maintenance plan to ensure that the system is operating at optimal capacity.

Do I need to clean snow off my solar panels?

Any shading to a solar panel will reduce electrical output. Solar panels can still produce while covered by a very light snowfall, but any more than that and the panel will not generate electricity. Solar panels have a slippery surface and are positioned on an angle. This can help snow slide off as the sun melts it. Ground mounted solar arrays can easily be brushed clean after a snowfall. If you have an off-grid system and depend on every photon, getting on the roof and dusting off your panels with a broom may be necessary (with proper safety restraints of course).

How long do solar panels last?

Most solar modules are guaranteed to last 25-30 years, and even after that, we are seeing efficiency output of 80+%. The kilowatt output degrades slightly each year yet can continue to provide consistent output. Most solar manufacturers provide a performance warranty of 25-30 years. Other PV system components, such as an inverter,could possibly need replacing during the lifetime of your array. Inverters often carry a warranty of around 10-12 years.

How do I determine the right size for my solar system?

Determining the size of your solar system involves assessing factors such as your energy consumption, available roof space, and local climate conditions. It is recommended to consult with a solar installer who can conduct a thorough assessment and provide accurate sizing recommendations tailored to your needs.

What factors should I consider when sizing a solar system?

When sizing a solar system, you should consider your average energy consumption, peak energy usage, available roof space, shading, and the orientation and tilt of your roof. These factors will help determine the number of solar panels.

How can I estimate my energy consumption?

To estimate your energy consumption, review your utility bills to determine your average monthly kilowatt-hour (kWh) usage. You can also use online calculators that consider factors like your location, household size, and energy usage patterns to provide a rough estimate.

What if my energy needs change in the future?

It’s important to consider future energy needs when sizing a solar system. If you anticipate changes such as an increase in energy consumption or the addition of electric vehicles, inform your solar installer. They can design a system that accommodates future changes, ensuring your solar investment remains viable in the long run.

Can I use a solar battery with my existing solar panel system?

In most cases, solar batteries can be integrated with existing solar panel systems. However, it is recommended to consult with a solar installer to ensure compatibility and proper installation.

How long do solar batteries last?

The lifespan of a solar battery depends on several factors, including the type of battery, usage patterns, and maintenance. On average, solar batteries can last anywhere from 5 to 15 years. It’s essential to consider the warranty and performance guarantees provided by the manufacturer before making a purchase.

Can I get financial assistance for purchasing a solar battery?

There are various financial incentives available to help offset the cost of solar batteries. These include federal tax credits, state rebates, and utility-specific programs. It’s recommended to research and explore available incentives in your local area or consult with a solar professional who can guide you through the process.

Is my building suitable for rooftop solar?

Most installers will be able to install panels on both sloped or flat roofs. If there is shade, extreme slopes, or other circumstances that prevent rooftop installation, your installer will be able to recommend alternatives, such as ground mounts.

How long would installing solar on my small business take? Would I have to close my business during installation?

The installation itself is often the quickest step of the solar process. System size will determine the exact amount of time, but most systems can be installed within a working day. While you should speak with your installer for specifics, most installations will allow your business to remain open during the process.

What changes or improvements should I make to my business before going solar? 

Common upgrades before going solar include roof repair, electrical panel upgrades, and energy efficiency updates. Your business may qualify for tax credits to make these upgrades. For more information, visit energy.gov’s tax credit page.

Are there additional incentives for small businesses? 

If your small business is in a rural area, it may be eligible for the Rural Energy for America Program, or REAP. This program provides loan financing and grant funding for farms and rural small businesses to install renewable energy systems, or make energy efficiency improvements. Grants for renewable energy systems have a $2,500 minimum, and a $1 million maximum, and can cover up to 50% of an eligible system.

Small businesses that are in an eligible area can qualify for the program if they meet one of the following categories:

• Private for-profit entity
• Cooperative
• Electric Utility that serves rural consumers
• Tribal corporation