Summer heat can be very uncomfortable, and many people depend on coolers to stay relaxed. But running a cooler for long hours increases your electricity bill. A smart solution is to run your cooler using solar power. It is a clean and free energy source that works even when there is no electricity. You can enjoy cool air without paying extra bills. Solar power is now cheaper and easier to install than ever before. You just need the right setup to start using the sun to power your cooler.
What You Need for the Setup
To run a cooler on solar energy, you will need a few simple items. First, you need a solar panel to collect sunlight. Then, you need a battery to store the energy, especially for use during the night or cloudy weather. A solar charge controller is also required to protect the battery from overcharging. If your cooler runs on AC (alternating current), you will need a small inverter to convert DC (direct current) from the battery into AC. If your cooler supports DC, then you don’t need an inverter.
Here is a table showing the items you need and their estimated cost:
| Equipment | Quantity | Approximate Cost |
| Solar Panel (250W) | 1 | ₹6,000–₹7,000 |
| Solar Charge Controller | 1 | ₹800–₹1,200 |
| Battery (12V, 100Ah) | 1 | ₹9,000–₹10,000 |
| Inverter (Optional) | 1 | ₹3,000–₹4,000 |
| Wires & Installation | – | ₹1,000–₹1,500 |
The total cost comes to around ₹18,000 to ₹23,000, depending on the quality and brand of products you choose.
How to Set It Up Step by Step
The setup process is simple and does not take much time. First, install the solar panel on your roof or any open area where it gets full sunlight during the day. Next, connect the solar panel to the solar charge controller. This device ensures that the battery charges properly and safely. Now, connect the controller to the battery, which will store energy for later use.
If your cooler works on DC power, you can directly connect it to the battery. If it works on AC power, then you need to add a small inverter between the battery and the cooler. This inverter will convert the stored energy into a form that your cooler understands. Once connected, your cooler will start running smoothly on solar energy. Make sure all the connections are tight and safe.
Running your cooler on solar panels is a great way to reduce your monthly expenses. A cooler uses about 200 watts per hour. If you use it for 8 hours daily, that’s 1.6 units of electricity per day. Over a month, you save almost 50 units, which is around ₹300–₹400. In 4 months of summer, that becomes over ₹1,200 in savings. In just two to three years, your solar investment will recover its cost. After that, your cooler runs almost for free.
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