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how many batteries to power a house

Oct. 24, 2022
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how many batteries to power a house

1.Home Electricity Estimation

Suppose your computer 1KW, TV 500W, electric mattress 1.5KW, rice cooker 2KW, induction cooker 2KW, air conditioner 3KW, the total power is 10KW, that is, 10 kWh of electricity per hour.


First of all, the average household electricity consumption is basically between 5-10kw(This is the content of most of the data we refer to in China). Of course, it may be lower than this. Maybe some families will exceed this, which will be related to the electrical appliances in the home.


For our products, a 10kw battery is basically enough for your daily use (computer/TV/mobile phone/lighting/dining/refrigerator and other equipment) when you are fully charged, if you add a larger power consumption Appliances (large outdoor appliances such as air conditioners) may require two 10kw batteries to maintain your household electricity


For electric vehicles or more at home that need electricity to maintain, you can consult or ask us or professionals to get a very good solution for your household electricity consumption and some problems


Your battery also needs some better adaptations to charge, so as to better save you money and deal with some crisis problems


If you need to pay attention to some problems when you install and buy the battery, the problem of charging the battery with light, although I said two basically meet the needs, but considering that it may be affected by environmental factors, some batteries may not be fully charged or some Because of this, the discharge demand cannot keep up, so we recommend four batteries, two for charging and two for power supply, which will solve this problem well.

2.Electricity Solutions

solar panel output

A single solar panel is capable of producing a certain amount of energy, depending on the conditions of your home (including how much sunlight you receive and the amount of shade that covers your roof). This number is called power rating and is measured in watts, with a typical panel producing between 250-400 watts. For example, you might buy a solar panel with a nominal output of 325W. You need to multiply the wattage of the panel by the number of hours of sunlight you get per day to get an idea of how much energy it will produce (more on that in the next section).

If you don't have a lot of space, you may want to invest in solar panels with higher power ratings, as they are capable of producing more energy per panel. Unfortunately, they're also more expensive, so keep that in mind if your home's solar budget is tight.

your sunshine

Your physical location is a key factor in the efficiency of your home solar panel. As you might expect, solar systems work best in sunny areas - which is why solar is so popular in states like California and Arizona. With more sunlight, each of your solar panels produces more electricity. For our calculations, we assume you have four hours of sunlight per day.

Of course, the location of your home isn't something you can change, but it's still important to recognize that your area plays an important role in how well solar energy works for you. Simply put, when your panels are able to absorb as much sunlight as possible, they will operate at maximum capacity.

But it's not just about where you live - it's also about how your particular property is laid out and how much sunlight hits the roof. For example, if your roof is shaded by tall trees, your solar panels will not generate as much electricity as they do under a clear sky.

put it all together

Taking these variables into account, we can get a rough estimate of the number of home solar panels you'll need. In this example, we'll use the average annual energy consumption, solar panel wattage, and sunshine hours we mentioned earlier.

Let's say your property receives four hours of sunlight per day and you purchase a 325W solar panel. In this case, each panel can generate 1,300 watt-hours (or 1.3 kWh) per day. Assuming your energy usage matches an average of 29 kWh per day, you would need 23 325-watt panels to provide enough power for your home.