Is a Solar Water Heater Worth It in Pakistan? A Complete Comparison with Gas and Electric Geysers

Everyone needs hot water in winter. But in Pakistan, with electricity and gas prices increasing every second month, most people either avoid buying geysers or use them very carefully to save money.

The most cost-effective way to avoid these high heating water bills is by switching to a solar water heater. They work by harnessing the sun’s energy and converting it into heat, which is then used to warm water for homes and businesses.

We know its upfront cost is higher than a conventional electric or gas geyser, but the big advantage is that it gives you hot water all day, and even at night, at almost zero operating cost.

The most commonly used solar water heater price in Pakistan usually starts from around Rs. 70,000 for a 100-liter system and can go up to Rs. 200,000 for a 300-liter system.

However, when you compare its running costs with those of electric or gas geysers, you can save up to Rs. 5,000 per month. Which means your entire investment can be recovered within 2 to 3 years.

In this blog, we will try to cover everything you need to know about solar geysers in Pakistan. Their working and comparison with electric and gas geysers.

This way, you can decide which-sized solar water geyser perfectly fits your home’s needs.

Solar water heaters are similar to regular panels but with an insulated storage tank and solar collectors. In Pakistan, they are commonly known as solar geysers.

The solar collectors heat the water that passes through pipes for residential and commercial use. After that, the heated water is kept in the insulated storage tank. This process, known as thermosiphon, provides a dependable and environmentally friendly hot water supply by naturally circulating the water without the need for a pump. Solar water heaters are incredibly reliable and have a lifespan of 25 years.

Solar water heaters are available in different sizes and materials, and the price depends on the storage tank size, collector type, and whether it is pressurized (for better water pressure and a stronger tank) or non-pressurized (cheaper but basic). You choose.

However, the average solar water heater price in Pakistan ranges between 70,000 PKR and 200,000 PKR.

So, our first advice is to check your water requirement. It usually depends on the number of family members and the size of your home.

In the table below, we’ve listed all the standard solar water heater sizes available in Pakistan, along with their prices and the type of families they are best suited for.

It is essential to note that the prices of solar water can vary significantly across different cities.

The initial installation cost of electric and gas geysers is less than that of the solar heater in Pakistan, but you recover that cost in just 2–3 years through the savings on your monthly bills.

Here is the estimated price of each geyser type in Pakistan.

• Electric storage geyser (80–150 L): PKR 18,000 – 40,000
• Instant gas geyser (instant LPG/NG): PKR 17,000 – 40,000 (smaller instant units).
• Solar heater price in Pakistan (100–300 L): PKR 70,000 – 200,000

A standard 150 L storage geyser uses almost 4-8 kWh of electricity to heat the water tank a single time.

So, if a household warms water only once per day and the electricity cost is roughly PKR 30–35 per kWh (tariff slabs vary), the monthly cost of operating the non-solar water heater will be around PKR 3,000–8,000.

However, on the other hand, people who use solar water heaters can heat water at zero cost, as the solar geyser captures heat from the sun and uses it to heat the water.

Solar water can cut the hot-water portion of your electricity bill to near zero, so it means you save almost 100% on your heating bills.

Assume a family uses a 150 L electric geyser that requires 5 kWh of electricity to heat the tank once a day, and the average electricity cost is PKR 32 per kWh.

• Daily energy = 5 kWh.
• Daily cost = 5 kWh × PKR 32 = PKR 160.
• Monthly cost (30 days) = PKR 160 × 30 = PKR 4,800.
• Annual cost = PKR 4,800 × 12 = PKR 57,600.

Payback years = PKR 150,000 ÷ PKR 57,600 =  2.60 years. 

If an installed 150 L solar system costs PKR 150,000, one can get an ROI in roughly 2 years and 7 months.

Please note that this is an illustrative example; actual payback and savings depend on your usage and local electricity tariffs.

The solar water heater features built-in solar thermal collectors made from materials that absorb solar heat to warm the water.
However, if you are using a conventional electric geyser, you can install the solar panels to operate them at much lower or even at zero cost.

Before purchasing a solar water geyser for your home, consider the following points.

Choose evacuated tubes, as they perform better in winter. You can also choose flat plates if your home receives efficient sunshine even in the winter season.

If you do not have budget issues, go with Pressurized stainless-steel tanks. They are stronger and can last for decades.

Must be installed at the right angle (south-facing in Pakistan) for best performance.

Look for a warranty for both collectors and the storage tank. Choose the brand that offers at least 5–10 years on tanks and 10–15 years on collectors.

This winter, are you trying to find a dependable and cheaper way to get hot water? The ideal answer is a solar water heater. You can buy a 100-liter tank solar geyser for just PKR 70,000 in Pakistan, while a larger 300-liter system can cost up to PKR 200,000. With Alpha Solar, you can get a high-quality, efficient solar geyser at an affordable price—installed on your rooftop in just one day.

Since solar water geysers require sunlight to heat water, they do not function at night. However, the hot water stored in the insulated tank can still be used during that time.

You can buy a 100-liter solar water heater for as low as 70,000 PKR. If you opt for a larger tank, the cost can go up to 200,000 PKR for a 300-liter solar geyser.