As Singapore continues advancing towards a sustainable, low-carbon economy, solar panel installations have become increasingly popular for both homes and businesses. With government support, improved technology, and rising electricity costs, the solar PV industry has reached a pivotal point.
But not all solar companies are created equal.
Whether you’re a homeowner considering solar to offset utility bills or a commercial entity aiming for energy independence, choosing the right provider can significantly impact your return on investment, system longevity, and after-sales experience.
In this guide, we rank the top 10 best solar companies in Singapore, based on service quality, installation track record, use of Tier-1 equipment, and real customer outcomes.
Why Solar Energy Is Booming in Singapore
Singapore’s tropical climate offers abundant sunshine year-round, making it highly suitable for solar photovoltaic (PV) systems. On average, a well-positioned solar array in Singapore can generate between 1,100 and 1,400 kWh per kWp annually. Given the rising cost of electricity from the grid (currently averaging $0.32/kWh as of 2025), going solar now presents a practical, long-term solution.
Backed by government schemes such as the SolarNova programme and open electricity market liberalisation, solar adoption is not only viable but often financially advantageous.
Evaluation Criteria: What Makes a Solar Company “Top-Tier”?
The companies selected below meet or exceed the following benchmarks:
Use of Tier-1 solar modules and reputable inverters
Proven installation record in Singapore
Transparent solar panel pricing with no hidden fees
Long-term warranty and maintenance support
Integration with SP Group metering and grid connectivity
Compliance with EMA regulations and PUB rooftop safety standards
1. First Solution Group ⭐
Website: https://www.firstsolution.com.sg
Contact: +65 6844 0001
Address: 18 Kaki Bukit Road 3, Singapore 415978
Services: Residential, Commercial, Industrial
First Solution Group is one of Singapore’s most experienced solar providers, offering comprehensive solar engineering and installation services for HDBs, landed homes, commercial units, and factories.
What sets them apart is their end-to-end expertise: from site analysis and energy simulations to SP Group submissions and post-installation monitoring.
Highlights:
Over 200 completed projects across residential and industrial rooftops
Zero-upfront packages with lifetime system performance monitoring
25-year performance warranty on panels, 10–12 years on inverters
Uses TrinaSolar and SolarEdge inverter solutions
Optional battery storage and EV charging packages available
Their engineering-led approach ensures systems are optimised for Singapore’s rainfall and solar angle, typically installed with a 5°–10° tilt for self-cleaning and thermal efficiency.
2. EDP Renewables (Sunseap)
Website: https://www.edpr.com/en
Contact: +65 6816 1000
Services: Utility-scale, Commercial & Institutional
Address: 23 Rochester Park, #05-00, Singapore 139234
EDP Renewables, a global energy giant, entered the Singapore market by acquiring Sunseap—Singapore’s largest solar developer. Their track record includes Jurong Port’s 9.5 MWp solar system, Ng Teng Fong General Hospital, and various government buildings.
With more than 2 GWp of solar capacity across the region, they are the go-to choice for enterprises, large infrastructure operators, and sustainability-first corporations.
3. Eigen Energy
Website: https://www.eigen.energy
Contact: +65 6589 8601
Services: Commercial, Residential
Address: 100G Pasir Panjang Road #05-07, Singapore 118523
Eigen Energy is a Singapore-based company known for its precision-engineered solar solutions and digital monitoring platforms. Clients include DBS Bank, Shell, and IKEA Singapore.
What’s unique is their ability to integrate solar with smart energy monitoring dashboards and EV charging solutions, appealing to green building developers and net-zero carbon initiatives.
Their systems are usually paired with Enphase microinverters for better modularity, especially for shaded rooftops.
4. Sembcorp Solar
Website: https://www.sembcorp.com
Contact: +65 6723 3113
Email: utilities@sembcorp.com
Services: Utility-Scale, Industrial, Government
Address: 30 Hill Street #05-04, Singapore 179360
As a major player in Singapore’s energy ecosystem, Sembcorp offers large-scale solar solutions including floating PV systems on reservoirs and massive rooftop projects.
With 2,600 MWp of solar and wind assets globally, their Singapore projects include:
The Tengah floating solar farm
Rooftop solar for Singapore Airlines (SIA)
Partnerships with SIA Engineering Company (SIAEC)
They offer Power Purchase Agreements (PPAs) with no upfront capital required for qualifying companies, making solar adoption risk-free and immediately beneficial.
5. 10 Degree Solar
Website: https://www.10degreesolar.com
Contact: +65 9674 3974
Email: furqan@10degreesolar.com
Address: 56 Sembawang Road, #01-07, Singapore 779086
Services: Residential
Focused primarily on residential installations, 10 Degree Solar partners with JJ&K Engineering Pte Ltd to ensure quality workmanship and electrical compliance.
They are one of the few providers to offer:
2-Year Defect Liability Period
Complimentary post-installation inspection
Integrated energy storage and solar-ready EV ports
Although smaller in scale compared to utility companies, they excel in personalised service, ideal for homeowners looking for a seamless and budget-conscious solar experience.
6. Cutech Green Ventures
Website: https://cutechgreenventures.com
Contact: +65 6665 0187
Email: enquiry@cutechgroup.co
Address: 3 Soon Lee St, #03-18 Pioneer Junction, Singapore 627606
Services: Commercial, Residential
Cutech Group offers regional expertise, with installations across Singapore, Malaysia, and India. Their solar arm has completed more than 110 project sites, deploying over 50,000 panels with a combined capacity of 22 MWp in Singapore alone.
They keep prices competitive by maintaining in-house engineering and leveraging scale across Southeast Asia.
7. Hao Solar
Website: https://www.haosolar.org
Contact: +65 8020 8530
Email: hugh@haosolar.org
Services: Residential & Commercial
Hao Solar is a fast-growing entrant in Singapore’s solar scene. Founded in 2023, the company is led by a team of engineers and technicians who prioritise technical accuracy, system modularity, and clean integration with existing electrical systems.
Their services include:
Custom residential PV systems
EV charging station installation
Annual maintenance plans
Retrofit upgrades for existing systems
Despite being new to the scene, Hao Solar is quickly gaining ground through word-of-mouth and positive post-installation support experiences.
8. SunPro Energies
Website: http://www.sunproenergies.com
Contact: +65 6612 5673
Email: info@sunproenergies.com
Address: Blk 18 Boon Lay Way, Tradehub 21 #02-109, Singapore 609966
Services: Residential & Commercial
SunPro Energies provides solar PV systems to both businesses and homeowners. Known for their creative approach to space utilisation, they offer solar canopies, which double as weather shelters and solar energy generators—an excellent solution for carports, patios, and open-air walkways.
They also service large commercial clients such as Ascendas REIT and have installed systems on high-traffic retail buildings like Ngee Ann City.
SunPro Homes, their residential division, is built around a hands-on customer experience with site surveys, digital planning tools, and post-install performance monitoring.
9. TotalEnergies Solar
Website: https://solar.totalenergies.asia
Contact: +65 6879 2200
Address: 182 Cecil Street, #27-01 Frasers Tower, Singapore 069547
Services: Commercial & Industrial
A subsidiary of the French energy multinational, TotalEnergies has been focused on building its C&I (Commercial & Industrial) solar portfolio in Singapore since 2019.
Major installations include:
1.2 MWp system at Total Lubricants’ plant in Tuas (offsetting 35% of energy use)
543 kWp system at Carros Centre, Singapore’s largest automotive hub
Their strength lies in seamless delivery for multi-site clients, enabling energy consolidation, custom PPAs, and corporate sustainability reporting integration.
10. Engie Southeast Asia
Website: https://www.engie.com/en
Contact: +65 6513 8288
Email: enquiry.seasg@engie.com
Address: 108 Pasir Panjang Road #05-04, Golden Agri Plaza, Singapore 118535
Services: Commercial, Government, Institutions
Engie SEA is the regional division of Engie Group, a global energy provider with over 100,000 employees worldwide. In Singapore, Engie has delivered solar PV systems totalling over 24.5 MWp, covering universities, hospitals, and transport infrastructure.
Their differentiator lies in:
Combining solar with AI-driven energy efficiency systems
Remote monitoring via digital twin simulations
Sector expertise in healthcare, aviation, and higher education
Projects include Changi Airport T1 & T2 and KK Women’s and Children’s Hospital—demonstrating their technical reliability for mission-critical sectors.
How Much Do Solar Panels Cost in Singapore (2025)?
The cost of a solar system depends on size, inverter type, roof structure, and labour. Here’s a breakdown:
| System Size | Estimated Cost (before grants) | Annual Savings | Payback Period |
|---|---|---|---|
| 3 kWp | $6,000–$7,000 | ~$1,000 | 6–7 years |
| 5 kWp | $10,000–$12,000 | ~$1,800 | 5–6 years |
| 10 kWp | $18,000–$22,000 | ~$3,600 | 5 years |
Depreciation and Maintenance:
Panel degradation: ~0.5% annually
Inverter replacement: ~$1,500 every 10–12 years
Annual servicing: $150–$250 (optional, but recommended)
Assuming no major component failures, your system can provide over 25 years of energy savings.
Government Support:
While Singapore does not offer cash rebates for residential solar panels, homeowners can:
Sell unused solar electricity back to the grid via SP Group’s Enhanced Central Intermediary Scheme (ECIS)
Apply for Green Mark certification for energy-efficient homes
Reduce electricity bills by offsetting grid energy usage
Key Considerations Before Choosing a Solar Panel Company
Before you commit, make sure to evaluate the following:
1. Panel and Inverter Brands
Ensure the company uses Tier-1 PV modules (e.g., Trina Solar, LONGi, JA Solar) and inverters with strong warranties (Huawei, SMA, Enphase).
2. Grid-Tie System Compliance
Verify that the system will be connected to the SP Group grid and comply with EMA licensing requirements.
3. Long-Term Maintenance
Choose providers who offer remote monitoring, warranty-backed workmanship, and an active maintenance package.
4. Transparent Cost Structure
Avoid contractors who provide vague quotes. Ask for a breakdown:
Panel cost
Inverter model
Roof mounting type
Labour, wiring, permits
Final Thoughts
Investing in solar is no longer just an environmental decision—it’s a smart financial move with real long-term returns. As the technology matures, customers have more choices than ever before. However, quality varies drastically between providers.
If you’re looking for a trusted solar partner with engineering depth, fair pricing, and long-term support, First Solution Group stands out with its proven residential and commercial track record.
✅ Ready to Start?
Get a FREE Solar Estimate today from First Solution Group.
📞 Call: +65 98556824
🌐 Visit: https://www.firstsolution.com.sg
📍 On-site inspection included | 25 Years workmanship warranty | SP Group grid integration
Make the switch to solar now—and start saving from day one.
