The Best Solar Battery for Off-Grid
Can a battery power an entire house?
Yes, depending on your potential power needs and for how long you plan on using a battery or battery pack for with the correct setup you can indeed power your electrical panel using a battery. There are many different types and sizes in the battery world, and now more than ever there are cost-effective solutions for the audience seeking to take their power needs into their own hands. Any of your power needs can be covered with a battery if you’re willing to spend the money and time researching the right deals.
How big of a battery do I need?
Before you start filling your shopping cart, there’s some things you need to know. One battery is almost never enough when it comes to power your home, cabin, or even RV. Many Tesla power-wall and whole-home backup battery systems with solar that I’ve been a part of did not power the entire home, but only critical loads such as the refrigerator. To really know what you’ll need there’s a few ways to get this information.
Step 1: Find your total daily energy usage.
You can find your monthly energy usage on a recent electric bill in the form of KWH, or Kilowatt hour output. Take this number, and divide by 30 days, multiply it by 1000 to convert back into Kilowatt hours. This is the first step to determine your battery needs, and a very important one. Under sizing your battery bank can lead to wasted solar production, and over sizing can be a costly expense that isn’t necessary unless you’re planning for future expansion.
Step 2: Find out your area’s Sunlight exposure
A quick search on the web can give you the region’s annual average of over cast cloudy days, a very important metric in sizing your battery bank. In areas where you may anticipate more cloudy days, it’s usually best to up-size your battery bank, while the inverse is also true for areas with more sunny and clear skies. As a general rule of thumb, we recommend to size your battery up rather than down.
Step 3: Take temperature into account
The ambient average temperature can be found online for your area, and this can play a role in the sizing of your battery too.
Best all-around battery
This battery does it all and has incredible reviews and testimonies online.
- Lithium-iron gives this battery a huge advantage, allowing for a long life and the ability to drain past 50% without damage.
- Can be paired with many inverter/Solar Panel systems.
- Light-weight compared to flooded lead acid counter parts.
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