Selecting the right type, right size, and right number of solar batteries comes loaded with several options. Do we want to use our solar system to back up key data? Or, do we just want to save on utilities? Moreover, how critical is our application to venting. We, for one, would not put flooded lead-acid batteries in our computer room. More than money is at stake when considering the optimum battery choices for solar.
Making Battery Choices for Solar: Capacity
We must feel confident we will have electricity when we need it, and at a price we can afford. At this point, the question of maintenance chimes in.
If our solar batteries are at home, then lifespan, capacity, and cost score more points than zero maintenance. Regarding battery capacity, how do we know how much storage we need?
One day’s capacity supply is likely sufficient if we have the option of tapping into the utility on cloudy days. However, if our aim is to be off grid completely, then we advise three days’ cover in a Sunbelt State. Four is a safer bet in the Midwest. However, you may need as many as five in the East and North West.
Your final battery choices for solar capacity depend on how low you can go with consumption when supply gets tight. If you can hold back on major kitchen appliances, you could be half way there already. Another option is having a combo wind-solar system. Run the numbers before making a snap decision. We understand small off-grid wind turbines start at around $4,000.
Other Battery Choices for Solar: Cost, Size, and Weight
This debate is by no means over yet. We have gotten as far as unpicking capacity, but there are other factors to consider. One of the largest is whether your old batteries are good for recycling, or whether they will end up on a tip. Stay with us on this one. We will be posting updates on these topics over the next several days
Related
How Long a Solar Battery Should Last
How to Choose a Solar Battery Set-Up
Preview Image: Solar Panels on Old Home
