WHAT ENERGY STORAGE IS BEST FOR YOU?

How to determine the best storage solution for you.

As you consider investing in an energy storage solution (ESS), you may be overwhelmed with all the choices and the mountain of information you need to gather to determine the best solution for you. Calculation, technical terms, size requirements, manufacturer evaluation, system layout and design can be daunting. However, GenPro’s sales engineers are among the industry’s finest certified system designers. Serving as your personal design expert, a GenPro sales engineer will patiently guide you through the entire process of selecting the best battery, inverter and balance of system components for your energy storage solution. We guarantee you’ll be offered one of the most reliable energy solutions available for your home or office.

Capacity & power

Capability is the total quantity of electrical power that a solar battery can store, measured in kilowatt-hours (kWh). Today, many residential solar batteries are “stackable,” which indicates that you can combine multiple batteries with your energy storage system to get additional system capacity.

While capacity tells you how much total electrical power your battery bank can store, it doesn’t provide a complete picture. A critical piece of information needed to determine the overall system design is time. For simplification purposes, you will not only need to understand the total amount of electrical power you can store, but you also need to know how much electrical power (we call this load) you are using over a given time. The simple calculation of load (measured in watts) x time (minutes or hours) = watt-hours (Wh) or kilowatt-hours (kWh) provides us with enough information to begin the sizing process.

Depth of discharge (DoD)

Traditional battery technologies require a continuous charge due to chemical composition. These batteries’ useful life is substantially shortened when the depth-of-discharge (DoD) is below fifty percent. GenPro’s energy storage technologies solve the traditional challenges of previous batteries with an entirely different chemical composition. Our energy solutions reduce system weight and allow for a depth-of-discharge (DoD) over 90% without impeding the storage solution’s long-term

Battery life & warranty

For many uses of home energy storage, your battery will “cycle” (charge and drain) daily. The battery’s capability to hold a charge will gradually decrease the more you use it. In this way, solar batteries are like the battery in your cellular phone– you charge your phone each night to utilize it during the day, and as your phone grows older, you’ll start to discover that the battery isn’t holding as much of a charge as it did when it was new. Most traditional batteries are warrantied for 350-3000 cycles or 1-3 years at 70 percent of its original capacity. This implies that at the end of the guarantee, the battery will have lost no more than 30 percent of its initial capability to keep energy.

When you choose a GenPro battery solution, our batteries start with a 5,000 minimum cycle guarantee. Ensuring that you will have the power you need when you need it most.

For how long will my energy storage solution last?

There are 2 methods to address this question and the very first is to figure out how long a solar ESS can power your home. In many cases, a completely charged ESS can run your home overnight when your photovoltaic panels are not producing any energy. To make a more specific computation, you’ll need to know a couple of variables, including how much energy your family consumes in a given day, what the capacity and power ranking is for your ESS and whether you are linked to the electric grid.

For the sake of a simple example, we’ll determine the size of an ESS needed to supply your home utilizing typical nationwide information from the U.S. Energy Information Administration. The typical U.S. home will use roughly 30 kilowatt-hours (kWh) of energy per day and a typical battery can deliver approximately 10 kWh of capacity. Thus, an extremely simple answer would be, if you purchased three batteries, you might run your home for an entire day with nothing but battery assistance.

In reality, the answer is more complicated than that. You will also be creating power with your photovoltaic panel system during the day which will provide consistent power for approximately 6-7 hours of the day throughout peak sunshine hours. On the other hand, the majority of batteries cannot perform at optimal capacity and generally peak at a 90% DoD (as discussed above). As a result, your 10 kWh battery likely has a beneficial capacity of 9 kWh.