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  • Home
  • About
    • Meet us
  • Our Installations
  • Systems
    • Grid Tied Systems
    • Camping & 4x4 kits
    • Backup Systems
  • Products
    • Victron Inverters
    • Fronius Inverters
    • Kaco Inverters
    • Lead Calcium Batteries
    • Gel & AGM Batteries
    • Lithium Iron Phosphate Batteries
    • Flooded Deep Cycle Batteries
    • FLA Batteries
    • Poly Panels
    • Mono Panels
    • Grid Tie Limiting
    • Monitoring
    • Mounting Structures
    • Solar Chargers
    • Battery Monitors, Isolators & Combiners
    • Isolators, Combiners & DC Systems
    • Accessories
    • Cables
    • System Monitoring
  • Specials
  • Contact Us
    • FAQ
    • Training

Leaders in solar pv

​Size your Solar System

​How to calculate the size of solar system

1. Look at your energy bill
The best place to start is by taking a look at your most recent energy bills. Your bill would set out your average daily energy consumption. An energy efficient three bedroom home, with an average sized family and reasonable use of air conditioning, will usually have an average daily consumption of around 12kWh to 16kWh.
Now depending on your location and how much day light you receive on average per day, a 1kW solar power system will usually produce around 4kWh to 5kWh of energy per day. So the general rule is that a 3kW solar energy installation will usually be enough to cover all the power needs for an energy efficient average home.
If however you live alone, or maybe are a retired elderly couple, your household energy needs will be significantly less. Usually a 2kW solar power installation will cover most if not all of your energy needs.
​

2. Monitor you usage and use data to drive your investment.

By far, the best method of understanding your usage is to use our energy monitor to get detailed high resolution realtime reports on your current and post solar system installation.

​Bellow are example reports available:

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+27 21 8511700
energy@exsolar.co.za
M-F: 8am - 5pm