Solar Installation Success Stories
Real results from CapSolar customers — factories, offices, hotels, and government buildings that trusted us with their solar installations. See actual savings and ROI data.
CapSolar at a Glance
CapSolar is a leading commercial solar provider in Thailand, with experience installing solar systems across diverse industries — from food factories and cold storage to office buildings, hotels, and government facilities.
Below are case studies from our actual customers, demonstrating measurable results — electricity savings, payback periods, and carbon emission reductions.
Food Factory, Samut Prakan
Challenge
This exported food processing factory had average monthly electricity bills of 1.8 million THB due to production machinery running 6 days a week. Management wanted to reduce energy costs but didn't want a large upfront investment, as capital was reserved for production line expansion.
CapSolar Solution
CapSolar installed a 500 kW rooftop solar system under a PPA model — zero upfront investment for the customer. They simply pay for solar electricity at a rate 30% lower than PEA grid prices. CapSolar manages the system for the full 20-year contract term, including panel cleaning, maintenance, and performance guarantees.
Results
"We save over 600,000 THB monthly without any upfront investment. CapSolar handles everything, letting us focus entirely on production."
Khun Wichai S. — Factory Manager
Cold Storage Warehouse, Chonburi (EEC Zone)
Challenge
This large cold storage facility consumed massive electricity for 24-hour cooling systems, with average monthly bills of 3.5 million THB. Management wanted to self-invest in solar to qualify for BOI incentives in the EEC zone and achieve the shortest possible payback period.
CapSolar Solution
CapSolar designed and installed a 1 MW solar system on the large warehouse roof, and assisted with BOI application — securing a 50% corporate tax exemption for 5 years. The system was optimized for peak generation during peak tariff hours when electricity rates are highest.
Results
"Investing in solar with CapSolar was our company's best decision. We achieved payback in 4 years and received BOI tax incentives. We now save 1.4 million THB monthly on electricity."
Khun Somsak W. — Managing Director
Office Building, Bangkok
Challenge
This 12-story office building had average monthly electricity bills of 800,000 THB and was facing pressure from its overseas parent company to produce ESG reports. Building management needed to reduce electricity costs and obtain clear carbon footprint data for annual ESG reporting.
CapSolar Solution
CapSolar installed a 150 kW rooftop solar system under a 15-year PPA, with a real-time monitoring dashboard showing power generation and CO₂ reduction data. This data feeds directly into ESG reports. CapSolar also issued REC (Renewable Energy Certificates) for the customer.
Results
"Beyond the 28% electricity savings, what impressed us most was CapSolar's monitoring system. It makes ESG reporting so much easier. Our parent company in Japan is very satisfied."
Khun Napha K. — Building Manager
Hotel Resort, Phuket
Challenge
This 80-room luxury resort needed to reduce high electricity costs from air conditioning and swimming pools, while also obtaining a Green Hotel certification from the Ministry of Tourism to attract eco-conscious travelers. An additional challenge was unstable power supply in Phuket with frequent outages during monsoon season.
CapSolar Solution
CapSolar designed a hybrid system combining 200 kW solar with 100 kWh battery storage for backup power during outages. The PPA model meant no upfront investment for the hotel. CapSolar also helped prepare Green Hotel Certification documentation and created solar information displays for interested guests.
Results
"CapSolar helped us achieve Gold-level Green Hotel certification, which we now promote on global booking platforms. International guests love it, and we save 30% on electricity too."
Khun Arun P. — General Manager
Government Hospital, Chiang Mai
Challenge
This 300-bed government hospital had average monthly electricity bills of 2.2 million THB but was constrained by government procurement rules that prevented direct solar purchasing. They needed to find alternative funding that complied with government regulations.
CapSolar Solution
CapSolar assisted in securing funding from the Ministry of Energy's ESCO (Energy Service Company) Fund, which supports energy conservation projects for government agencies. CapSolar designed and installed the 300 kW system and prepared all project documentation per government regulations. The system was optimized for daytime solar use, coinciding with the hospital's busiest patient hours.
Results
"As a government hospital with tight budget constraints, CapSolar helped us secure ESCO funding to successfully install solar. Our 25% electricity savings are now redirected to improving patient services."
Dr. Prasit T. — Hospital Director
Why Businesses Choose CapSolar
Custom system design for each business
Not one-size-fits-all — we analyze your electricity usage patterns, building structure, and business goals before designing.
Flexible financing options
PPA, EPC, Lease, ESCO Fund — we offer every model to fit your budget and needs.
Full lifecycle management
From site survey, design, permits, installation, maintenance, to monitoring — for 20-25 years.
BOI & certification support
We help with BOI applications, ESCO Fund, Green Certification, REC, and ESG reporting.
FAQ
Ready to Start Saving with Solar?
Let CapSolar design the perfect solar system for your business. Free consultation with a detailed quote within 3 business days.