How to Properly Size a Solar PV System

Solar panels are emerging fast, and investing in a solar photovoltaic (PV) system is a smart solution for most homeowners. 

This sustainable, reliable technology offers long-term performance with low maintenance. To truly  maximize its potential, it’s important to know how to properly size a solar PV system that fits your needs and lifestyle.

To help you with that, here are the following important considerations you can discuss with your system provider to determine the size of your solar PV system.

 

1. Energy Consumption

 

List down all your appliances and devices and multiply each one’s power consumption (in watts) by the estimated number of hours it will be used each day. That will give you the daily electrical consumption in watt-hours. Sum up all the watt-hours per day and you will get your estimated daily electrical consumption.

You can add a little extra on top, say 10% to 25%, to account for losses in the system, or the use of an extra electronic device not accounted for.

 

2. Sun Hours Per Day

 

As solar power generation is based on incident sunlight on the PV panels rather than heat, it is necessary to know how many hours of direct sunlight the panel or panels will be exposed to throughout the day. The amount of energy you can get depends on location, climate, roof angle, shade/obstructions, etc.

 

3. Number of Solar Panels

 

Considering your energy consumption and needs, you can determine the type and number of photovoltaic (PV) panels that will produce your power requirements.

Solar panels come in different types, size, shape, and voltage ratings. In most cases the size of a photovoltaic panel refers to the panel’s rated output wattage or electricity generating potential.

 

4. Storage Battery Sizing

 

Battery storage system is a great addition to any solar PV system. They allow you to store the excess solar energy generated during the day, and use it later on – during power outages, and even at night.

To calculate your storage battery sizing, determine the amount of energy you consume in your household, and the number of days you’ll be needing battery back-up, that is your minimum storage capacity.

Now that you have a deeper understanding of solar PV systems, it’s time to start looking into this new possibility for your home. 

Need an energy consultation? DHM Renewable Resources specializes in providing solutions for the mass adoption of renewable energy, one household at a time. Your first choice for top-quality solar equipment and first-class installation. 

 

Book a FREE consultation with our in-house experts today!

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☎️ (02) 8 707 1275
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