Solar technology is becoming increasingly affordable thanks to growing demand. I will explain how to calculate the cost of your solar panel system. You will learn how to estimate your average and daily electricity consumption, how to estimate the cost of solar panels, and how to factor in installation costs.
Determine average and daily electricity usage
Use more electricity during certain months of the year. View your electricity bills from the last 12 months and calculate your average usage (kWh). You can also estimate your average daily usage in kWh by dividing your monthly use by 30 days.
Calculate the cost of solar panels
A standard solar panel produces around 1.24 kWh per day and costs approximately ₱11 to ₱12 per watt. Solar panels from well-known manufacturers cost up or more per watt. You can multiply your recommended wattage by ₱11 to ₱12 per (or more) to get an approximate cost for all your solar panels.
Installation cost factor
Growing in demand, solar installation costs continue to fall, making green energy more affordable. According to the Solar Energy Industries Association, installation costs have fallen by more than 70% over the past ten years.
Depending on the size of the solar system, expect to pay a minimum of ₱145,000 or more for solar panels and rooms. Then, add the costs of solar panel installers depending on the company doing your installation.
Ultimately, the total cost of purchasing and installing a solar panel system can cost anywhere from ₱145,000 to ₱800,000 or more.
How do I calculate the number of solar panels for my house?
If you don’t have all the necessary data, you can still make a quick estimate of your annual electricity consumption based on the characteristics of your property. The latter is estimated at:
– 5,500 kWh for 30 m2
– 9,000 kWh for 50 m2
– 12,500 kWh for 75 m2
– 15500 kWh for 100 square meters
– 18,500 kWh for 120 square meters.
Once you have established your annual electricity consumption, it is easy to determine the number of solar panels needed. Estimating the solar panels required to power your home with clean, renewable energy can seem complicated. I will walk you through the essential steps.
Evaluate your energy consumption
The first step in determining how many solar panels are needed is to assess your energy consumption. To do this, review your electricity bills from the last 12 months and note your consumption in kWh. Take the average to get a monthly and annual estimate of your consumption.
Example of consumption calculation:
– Annual total: 4,500 kWh
– Monthly average: 375 kWh (4,500 / 12)
– Estimate solar energy production
Once you know your energy usage, it’s time to estimate your area’s solar energy production. The sun gets hotter in the Philippines from 8AM to 4PM.
Example of solar radiation:
Average solar radiation in the Philippines: 1,000 kWh/m²/year
Calculate the number of solar panels needed
By considering your energy consumption and the average solar radiation in your area, you can estimate the number of solar panels needed to cover your needs. To do this, divide your annual energy consumption by the average solar radiation and the power of a solar panel (expressed in kW).
Example of solar panel calculation:
– Annual consumption: 4,500 kWh
– Average solar radiation: 1,000 kWh/m²/year
– Power of a solar panel: 0.25 kW
– Number of solar panels: (4,500 / 1,000) / 0.25 = 18
In this example, you would need 18 solar panels to cover your annual energy consumption.
Take into account the specificities of your accommodation
Remember that your home has specificities, such as orientation, roof pitch, and shading, which can influence solar energy production. It is, therefore, essential to consult a professional to assess your situation and solar panel needs accurately.
The cost of solar panels in the Philippines
The cost of installing solar panels depends on several factors, such as the number of panels, brand, quality, and complexity of the installation. On average, the price of a solar panel in the Philippines is between ₱30,000 and ₱50,000 per installed kW, including installation and necessary equipment.
Cost example:
– Number of solar panels: 18
– Total power: 18 x 0.25 kW = 4.5 kW
– Average cost: 4.5 kW x ₱30,000/kW = ₱50,000
Request a quote for your solar installation
To obtain an accurate estimate of the number of solar panels you need and the cost of your installation, it is strongly recommended that you request a quote from a solar panel company.
FAQ: Calculate the number of solar panels for your needs
How many solar panel for 3kw
It takes around 7 to 8 solar panels to produce 3 kW.
How many solar panel for 6kw
To generate 6 kW, you need around 14 to 16 solar panels.
How many solar panel for 9kw
It takes approximately 21 to 25 solar panels to generate 9 kW.
How many solar panels for a 200m2 house
In general, to power a 200m2 house in the Philippines, you need to install around 8 to 10 solar panels with an average power of 425 W each, but this depends on the electricity consumption of the house, the geographical area and the orientation of the roof.
How many solar panel for 10kw
To generate 10 kW, you need around 23 to 25 solar panels.
How many solar panel for 5kw
It would take around 11 to 12 solar panels to produce 5 kW.
How many solar panels for a 50m2 house
In general, to power a 50m2 house in the Philippines, you need to install around 2 to 3 solar panels with an average power of 425 W each, but this depends on the electricity consumption of the house, the geographical area and the orientation of the roof.
How many solar panel for 4000w
To produce 4000 W of energy with solar panels having an average power of 425 W each, it would be necessary to install approximately 10 solar panels, but this can vary depending on the geographical area, the orientation of the roof and the inclination of the solar panel.
How many solar panels for a 300m2 house
In general, to power a 300m2 house in the Philippines, you need to install around 12 to 15 solar panels with an average power of 425 W each, but this can vary depending on the electricity consumption of the house, the geographical area, the orientation of the roof and the inclination of the solar panel.
How many solar panels for a 100m2 house
In general, to power a 100m2 house in the Philippines, you need to install around 4 to 5 solar panels with an average power of 425W each, but this can vary depending on the electricity consumption of the house, the geographical area, the orientation of the roof and the inclination of the solar panel. It is recommended to have your home’s electricity consumption assessed by a professional to determine the exact number of solar panels needed.
How many solar panel for 12kw
It takes around 28 to 30 solar panels to generate 12 kW.
How many solar panels for a 120m2 house
In general, to power a 120m2 house in the Philippines, you need to install around 5 to 6 solar panels with an average power of 425 W each, but this can vary depending on the electricity consumption of the house, the geographical area, the orientation of the roof and the inclination of the solar panel.
How many solar panels for a 150m2 house
In general, to power a 150m2 house in the Philippines, you need to install around 6 to 8 solar panels with an average power of 425 W each, but this can vary depending on the electricity consumption of the house, the geographical area, the orientation of the roof and the inclination of the solar panel.
How many solar panels for a 130m2 house
In general, to power a 130m2 house in the Philippines, you need to install around 5 to 7 solar panels with an average power of 425 W each.
How many solar panels for 3000 watts
It takes approximately 7 to 8 solar panels to produce 3000 watts.
How many solar panels to charge electric car
The number of solar panels needed to charge an electric car depends on the car’s battery capacity and the amount of solar energy available. In general, to charge an electric car, you need to install around 10 to 20 solar panels with a total power of around 5 to 10 kW.
How many solar panels for an autonomous house
The number of solar panels needed for a self-sustaining home depends on the home’s electricity consumption and the amount of solar energy available. Generally, for an autonomous house in the Philippines, you need to install around 20 to 30 solar panels with a total power of around 10 to 15 kW.
How many solar panels for an inverter
The number of solar panels needed for an inverter depends on the output power of the inverter and the power of the solar panels. In general, for an inverter with an output power of 5 kW, you need to install around 12 to 15 solar panels with an average power of 425 W each.