Solar Panels: How Do Solar Batteries Work?

Store Your Solar Energy For Later Use


Here at RGS Energy, we are dedicated to providing the best solar panel services that we possibly can. Since 1978, we have been helping Americans make the switch to solar energy, helping them to reduce their utility bills and make the world a more habitable place for future generations. While we love all things solar energy, we also understand that many people are concerned that solar energy is not a viable form of energy production because, by their very nature, solar panels are only able to produce energy when the sun is present. Luckily, technology is starting to address this issue in the form of large batteries that are used to store energy that is not used during the day so that people can draw from their solar energy during those times when the sun’s not shining. Continue reading below to learn more about the exciting world of solar batteries.

Why are Solar Batteries Needed?


When you look at the data, solar panels are quickly becoming one of the fastest growing sources of energy in the United States. In 2016 alone, the solar market doubled in size and, if the data is any indication, there are no signs of solar energy ever falling into obscurity. This popularity has led to the rise of another renewable technology in the form of solar batteries that are used to store excess energy that can then be used at a later time. To fully understand why solar batteries are becoming so important, it is first necessary to understand how solar panels produce energy. In a typical solar array, solar panels are mounted to the roof of a home along with an inverter and a performance monitoring system that measures the level of energy that is produced by the solar array. During the day, solar panels collect energy from the sun, turn it into electricity, and pass that energy through the inverter to transform it into energy that can be used to power a home. Up to this point, most solar panels are also connected to the electricity grid so that when the panels produce more energy than a home needs, the excess power is fed back into the power grid to be used elsewhere. In most cases, this has been a good thing because electricity companies are willing to pay homeowners who have solar panels installed for their extra energy, however, what if a homeowner wants to store their excess energy for use at a later time?

How do Solar Batteries Work?


In a nutshell, solar batteries work by converting the AC energy that is produced by a home’s solar array and storing it as DC power for later use. This process of energy storage has been used for decades and, for the most part, is a process that most people understand. When you chose to install a solar battery in your home, any excess energy that is produced by your solar panels is funneled into the battery for use when your solar panels are not producing energy. It should be noted, however, that your solar battery can only hold so much energy, meaning that any energy that cannot be stored in the battery will be sent back into the electrical grid if you have a grid-tied system. In practical terms, this means that your home is able to store energy onsite for later use and, even better, can be used in the event that there is a power outage in your area.

Is a Solar Battery Right for You?


This question is a hard one to answer in some cases and largely depends on the amount of compensation that a homeowner receives from their electrical company for the solar energy that their system feeds back into the electrical grid. Most utility companies offer full net metering, meaning that homeowners receive a credit on their electric bill for every kilowatt-hour of electricity that their solar panels produce. If you utilize a solar battery to store excess solar energy, you will not see these additional savings on your monthly energy bill. However, certain situations arise where a solar battery can actually work to improve the economic value of your solar array. In cases where an electrical utility company has time-of-use rates, does not offer net metering, or demands charges during peak hours of energy consumption, a solar battery could save you money.

What Does the Future of Solar Batteries Look Like?


While solar batteries are not exactly commonplace in the United States, companies such as Tesla are attempting to change that. According to a study conducted by GTM Research and the Energy Storage Association, the residential solar battery market is expected to be a $2.5 billion market in the United States by  2020. While residential batteries will contribute to this growth, the main influence lies in the fact that the same benefits offered to homeowners in relation to solar batteries can also be applied on a much larger scale. Energy storage solutions like solar batteries will allow electricity companies to provide customers with more reliable access to energy through the use of energy storage. Utilizing batteries will allow utility companies to meet the exact energy demands required by the grid while also storing any excess power for later use when energy demand peaks and energy production cannot keep up.


Thank you for taking the time to read our post on the benefits of solar batteries and how they are poised to reshape the landscape of this country in terms of energy. Additionally, if you would like to learn more about the solar panel services that we provide, please do not hesitate to get in touch with us today by giving us a call or filling out the contact form on our website. At RGS Energy, we have been helping people make the switch to solar since 1978 and, through these years of experience, we feel that we have developed the skills and techniques that are needed to provide the best solar energy services possible.

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