How do you calculate the electricity consumption needed to install solar energy at home?

How do you calculate the electricity consumption needed to install solar energy at home?

If you are considering installing a solar power system, you need to calculate your electricity consumption accurately in order to ensure a suitable system to fully meet your needs!

First step | Calculation of daily electricity consumption

*Look at the monthly electricity bill, and look for the consumption in kWh / hour (kWh).

*If your monthly consumption, for example, 300 kWh, divide it by 30 days = your daily consumption = 10 kWh.

^Manual home appliance consumption calculation:

If you have a bill, count manually:

Conditioner 1500W (works 5 hours per day) 7.5 kWh per day

Refrigerator 200W (24 hours per day) ا 4.8 kWh per day

TV 100W (5 hours per day) ً 0.5 kWh per day

LED bulbs (10 bulbs x 10W) (6 hours per day) 0. 0.6 kWh per day

Total = 13.4 kWh per day

Second step | Determining the size of solar panels required

Each solar panel produces 300-650W depending on the type, and the sun gives efficient power of about 5 hours a day.

If you consume 10 kWh daily and use 600W panels:

Production within 5 hours a day 10 kilos

10000/5=2000 watt per hour

The number of solar panels required 2000/600=4 panels

Required quantity = approximately 4 panels

Third step | Battery Calculation (if you want a off-grid system)

*Autonomous systems need batteries to store electricity, such as lithium or gel batteries.

*For the required batteries:

*Calculate daily consumption x number of days of storage required

*Use 51.2V batteries with adequate capacity (for example, 300Ah for a single battery covering about 15.36 kWh).

Last step | Select Inverter (Inverter)

*Inverter converts energy from DC to AC, and should be more powerful than your highest current consumption.

*Example: If you need 5 kW at the same moment, you should choose a 6-7 kW inverter to ensure comfortable operation.