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GoodWe Domestic DC Storage System with Pylon
The GoodWe BP series DC energy-
The Pylon batteries are modular. You can fit one and then add another at a later date if the energy needs on site change.
How do I choose the right battery size for my house?
The first step is to determine the amount of energy your solar panels produce per day.
To calculate this amount, you could either use a daily average or the amount of energy necessary to meet your needs during the winter peak, when you get the least sunlight. If you’re off-
If you choose to use your daily average, look over your past energy bills and add up your annual kilowatt-
If you’re in an off-
This means tabulating the total wattage of each of your devices and appliances, then multiplying that number by the number of hours you use it per day. For instance, if you have 10 LED light bulbs, each of which is rated at eight watts, and you usually use each one six hours daily, you’ll need to develop a battery bank capable of sustaining at least 480 watt-
When using this wattage calculation method, create a digital spreadsheet to keep track of all your appliances, their wattage, and the number of hours you use each one.
After figuring out the watt-
if you have a TV that uses 100 watt-
You can use the daily watt-
For instance, if you’re developing a battery bank for the 1,280 watt-
You’ll also need to determine how deeply you expect to discharge your batteries. Totally discharging your batteries can shorten their life spans.
The recommended depth of discharge for lead-
Since discharge rates require you to always leave at least some portion of the battery energy in reserve, you’ll need to upsize your battery bank by an appropriate amount to ensure you have enough usable energy.
For instance, suppose you need 100 amp -
Once you know how much battery energy you need to sustain your appliances and electronics each day, determine the amount of backup power you want. For instance, you could install a battery bank that would provide you with enough energy for one day (equal to your amp-
Just remember: the larger your battery bank, the more expensive it will be, and the more space it will require.