If your residential or factory electricity bill exceeds 3,000 baht per month, you may be losing tens of thousands to hundreds of thousands of baht unnecessarily. The year 2026 is the best time to install solar panels because equipment costs have decreased, while electricity prices continue to rise steadily.
In 2026, electricity prices are still expected to remain volatile and continue rising
According to data from the Office of Energy Policy and Planning,
energy costs still depend on gas prices and global market conditions.
Electricity users under the Metropolitan Electricity Authority (MEA) and the Provincial Electricity Authority (PEA) continue to face the Ft (Fuel Adjustment Charge), which is adjusted based on the situation.
The reality is…
“Electricity prices have never decreased in the long term.”
The question is: how many more years will you wait for them to rise again?
And if you only decide to install solar panels in 2026, will it still be worth it?
The short answer is: “Absolutely worth it” — if you meet these conditions:
☀ High daytime electricity usage
(Air conditioners / Machinery / Office operations)
🏠 Electricity bill exceeds 3,000 THB per month
🏭 You want to control long-term operating costs
Installing solar panels allows you to generate your own electricity immediately,
reduce dependence on the grid, and protect yourself from future electricity price increases.
A clear numerical analysis.
How Many Years Does Solar Take to Pay Back?
To calculate cost-effectiveness, we evaluate four key factors — the same for both homes and factories:
-
Average monthly electricity bill
-
Percentage of daytime electricity usage (%)
-
Appropriate system size (kWp)
-
Installation cost per kWp
Once these factors are fully calculated, you will clearly see the actual payback period and the long-term profit potential.
Example: A Home with an Electricity Bill of 4,500 THB per Month
Recommended System Size: 5 kWp
Estimated Investment Budget: 120,000 THB
📉 Expected Results
-
Average electricity generation: 600–750 kWh per month
-
Electricity bill reduction: approximately 3,000 THB per month
-
Annual savings: approximately 36,000 THB
⏳ Payback Period
120,000 ÷ 36,000 ≈ 3.3 years
Example: A Factory with an Electricity Bill of 120,000 THB per Month
Recommended System Size: 100 kW
Estimated Investment Budget: 2,500,000 THB
📉 Expected Results
-
Average electricity cost reduction: approximately 40,000 THB per month
-
Annual savings: approximately 480,000 THB
⏳ Payback Period
2,500,000 ÷ 480,000 ≈ 5.2 years
After the payback period, over the next 15 years,
the accumulated profit can exceed 7–10 million THB.
Note: Results depend on each factory’s operational pattern. For example, factories operating mainly during daytime shifts will have different electricity usage compared to those running 24 hours a day (including night shifts).
Energy consumption varies in each case, and system design may require additional equipment or higher investment if the factory operates 24 hours continuously.
Not installing solar panels vs. installing solar panels.
❌ Not Installing Solar Panels
-
Electricity bills increase every year
-
Money flows out every month
-
No control over energy costs
Every month you delay installation = you are paying more than necessary.
✅ Installing Solar Panels
-
One-time investment
-
Immediate reduction in electricity costs
-
Increases the value of your home and business
The longer you wait = the more savings you lose.
Why should customers choose to install solar panels with SolEn?
✔ A team of licensed energy engineers providing expert consultation
✔ International-standard equipment with warranties of up to 30 years
✔ Complete handling of documentation and submission to the electricity authorities
✔ Proven installation portfolio for both residential homes and factories
We analyze your actual electricity bills — we never oversell beyond what you truly need.
Our goal is to deliver thoughtfully designed solutions that meet your real-life energy needs.
