Most people drift towards solar energy just to save from high electricity bills. However, the most important question that comes forward is how many solar panels one should get installed for running a 1.5-ton air conditioner, especially during summers when an air conditioner consumes the largest amount of energy. Somebody will be able to cool with the right photovoltaic setup and reduce energy bills at the same time. Let’s get into the detailed analysis!
Understanding the Power of 1.5 Ton AC
A 1.5-ton inverter air conditioner uses approximately 1800 watts of electricity. In this regard, inverter ACs are way more efficient compared to conventional ACs since they only modulate the cooling to save power. This figure shall help us in ascertaining the number of solar panels that you would need.
How Solar Panels Work for ACs

The amount of electricity that could actually be produced by a panel was determined by the capacity in wattage of the solar panel. Realistically, true output would have to depend upon a range of factors; including, but not confined to, sunlight and meteorological conditions, even to the angles they had been set to.
- In reality, it may output around 381 watts with a 545-watt panel.
- A 440-watt panel might produce 308 watts.
To run a 1.5-ton AC (1,800 watts), you would need:
- 5 panels of 545 watts each, or
- 6 panels of 440 watts each.
But remember, these are numbers and depend on where you live and also how much sun you are exposed to each day.
Factors Affecting Solar Panel Needs
Type of Air Conditioner
Inverter ACs are better because they adjust their energy usage. Non-inverter ACs always draw full power, meaning more solar panels may be required.
Amount of Sunlight
About that, if you are living in a city that gets plenty of sunlight, such as Karachi, then the number of panels you will be needing will be less compared to those living in cloudier regions.
Seasons Matter
Solar panels work just fine in summers, but during winters or on a cloudy day, one needs to install a battery backup to smoothly run it with your AC.
Battery and Inverter Size
While there is excess power output, a strong inverter and reliable battery backup ensure the storage of this much excess and help in continuing the ACs during partial sunlight conditions.
Practical Examples of Solar AC Systems
- City Setting: On the whole, up to 6 solar panels of 440 watts each can operate a 1.5-ton AC for 8 hours daily in Lahore during peak sunlight, hence drastically reducing your electricity bills.
- Rural Setup: In a rural setup where sunlight is less in intensity, 7 panels of 440 watts each would suffice the same purpose of uninterrupted cooling with a high-capacity inverter and battery system, even on cloudier skies.
Pros and Cons of Using Solar Panels for ACs
Advantages:
- Save Money: Solar ACs reduce your electricity bills tremendously.
- Eco-Friendly: Solar power is clean and reduces reliance on fossil fuels.
- Low Maintenance: Once installed, solar systems hardly require any maintenance.
- Reliable: No power outage just shuts it off; and on goes the solar panels serving dutifully.
Disadvantages:
- High Initial Cost: This explains the high cost incurred throughout the installation of the solar system.
- Weather Dependent: It is not possible for these panels to work appropriately at a time when the weather is overcast or during rain.
- Space Required: This is the roof space needed by the panels.
1 Ton vs. 1.5 Ton AC: Which is better in Solar Panel Application?
- A 1-ton inverter AC runs on about 1,300 watts; you will need:
- Four 440-watt panels, or
- Three 545-watt panels.
- A 1.5-ton inverter AC has a rating of 1,800 watts, which needs:
- 6 panels at 440 watts each, or
- 5 panels at 545 watts.
Myths Clearance of Solar Air Conditioners
Solar cannot run ACs properly.
The modern solar installations can handle air conditioners and other appliances.
Solar panels do not work in cloudy weather.
While they generate less energy on cloudy days, the performance would be uninterrupted with a battery backup.
Solar is too expensive.
Although the initial cost is very high, it really pays off in the long run with the savings on electricity bills.
Price of Solar System in Pakistan
Costs incurred to run a 1.5-ton air conditioner:
- 6 * 440 Watts Panels: PKR 150,000 – 180,000
- Solar Inverter: PKR 40,000 – 100,000
- Accessories and Installation: PKR 20,000 – 30,000
FAQs
Can solar panels run air conditioners at night?
Yes, it does with a battery backup. In the daytime, when the sun is available, it stores energy in the batteries which you can use at night to run the AC.
How long does a solar panel last?
Most photovoltaic panels will operate anywhere from 20-25 years virtually maintenance free.
Are Solar Systems Worth It in Pakistan?
Of course, solar systems are a good investment in areas with abundant sunlight and growing costs of electricity.
Why Choose a Solar App for All Your Solar Needs?
Solar App offers custom solar solutions for either homes or business buildings, from selecting proper panels to professional installation with the best value for your buck. Be it an AC or running the whole house, come to make solar energy easy, efficient, and effective with us!
Conclusion
The switch to solar energy is something that will prove to be just perfect, especially for those countries that receive abundant sunlight, like Pakistan. One would be able to run a 1.5-ton AC with 5-6 solar panels according to their capacity and efficiency. Savings and long-term benefits to nature justify the expensive initial cost. Let Solar App point you in the right direction for greener, less costly energy today!