Solarity Product



What solar system size do I need ?

Find the best deal on solar for your Business, Home or Office




Some businesses may be limited by roof space available, some may have just enough while others may have an abundance of space with only a relatively small power bill. Whichever category you fall under sizing is important.

Take your daily kWh energy requirement and divide it by your peak sun hours to get the kW output in order to size your solar system. To determine the approximate number of solar panels you’ll need for your system, divide the kW output by the efficiency of your panels.

Vanpeux Solarity specializes in impartially advising businesses through the procurement process ensuring the outcome meets the business goals and is a high quality solution meeting industry standard for warranties and performance guarantees.

Whether the focus of the project is offsetting energy usage and reducing energy bills or investing in large scale solar farms, our team works with clients to develop commercial solar power systems that reflect their energy usage and budget.

Vanpeux Solarity  utilises our unique position within the hub of the Nigeria solar energy industry to broker the leading technology and value in solar procurement from a network of over 100 of Nigeria’s most competitive solar power installations companies.

What aspects determine the ideal size of your solar system?
The following five criteria are used to determine the size of the solar system:


accessible daylight

Insolation of the sun and weather

qualities of a roof

System failures

battery power

Key conclusions
The maximum amount of DC electricity a solar system can produce is referred to as its size.
PVWatts, the SolarReviews calculator (recommended), or asking a nearby solar business can all be used to determine the size of your solar system.

Calculations must take into account your usage, local weather, average sunlight hours, the qualities of your roof, and whether or not you’ll install battery storage.

Both average system size and average power generation per kW of installed capacity differ from state to state.

Request a free solar business case for your home, office or Business


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60 thoughts on “What solar system size do I need ?”

  1. That great, I have heard about your guys and I was thinking about partnership deal your organization, I don’t know if you allow that.

  2. Theophilus Sarah

    Pls I want to upgrade my inverter to solar and also change my batteries… I really enjoyed your inverter for 6 years now

  3. Thank you for taking your precious time in reviewing our product.
    kindly provide us with your contact details

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