The demand for solar energy in Singapore has grown significantly in recent years, driven by rising electricity costs, government support for green energy, and a growing awareness of sustainability. Whether you’re a homeowner seeking long-term utility savings or a commercial property manager aiming for net-zero energy targets, choosing the right solar contractor is crucial.
To help you make a confident decision, we’ve compiled a list of the top 10 solar panel companies in Singapore, evaluated on technical capabilities, service range, installation quality, and real customer results. Here are the top 5, covered in depth:
1. First Solution Group
Best Overall for Residential & Commercial Solar Solutions
📍 45 Kallang Pudding Road #09-02 Alpha Building, Singapore 349317
🌐 firstsolution.com.sg
📞 +65 9855 6824
Overview:
First Solution Group has over 10 years of solar installation experience and is trusted across a wide client base—from landed homeowners to industrial building owners. Their combined team of electrical engineers, technicians, and project managers has completed more than 500 turnkey solar projects, with zero major incident reports.
What Makes Them Stand Out:
- In-house solar simulation using PVsyst for system sizing and energy forecasting
- Works with SP Group for grid-tied system connection under the ECIS scheme
- Mounts solar panels using 5°–10° tilt frames for self-cleaning and maximum yield
- Lifetime workmanship warranty, rare among local contractors
Technology Used:
- Tier-1 panels: LONGi Solar, JA Solar, Canadian Solar, TrinaSolar (efficiency ≥ 20.1%)
- Inverters: Huawei SUN2000, SolarEdge with optimiser compatibility
- Optional upgrades: Enphase microinverters, Sungrow battery storage, and EV wallbox chargers
Client Portfolio:
- Numerous landed properties in Bukit Timah, Changi, and Serangoon Gardens
- HDB retail units and small commercial buildings (e.g. Geylang shophouses)
- Works with MCSTs on condo solar feasibility studies
Packages:
- Zero-upfront cost rent-to-own options
- One-time payment systems with IRR ≥ 14%
2. EDP Renewables (Sunseap)
Best for Government & Large Commercial Projects
📍 23 Rochester Park, #05-00, Singapore 139234
🌐 edpr.com
📞 +65 6816 1000
Overview:
EDP Renewables is the parent company of Sunseap Group, Singapore’s original solar pioneer. After the acquisition in 2021, EDP has led major solar efforts in Singapore and Southeast Asia, operating over 2 GWp of installed capacity globally.
Specialties:
- Mega-scale rooftop and floating PV installations
- Energy-as-a-Service (EaaS) and Power Purchase Agreements (PPAs)
- Carbon offset partnerships and Scope 2 emissions reduction consultancy
Technology Used:
- Utility-grade Tier-1 panels: Trina Solar, Jinko, and REC
- Central and string inverters from SMA, Sungrow, and ABB
- Real-time analytics via SCADA monitoring for industrial clients
Key Projects in Singapore:
- Jurong Port: 9.5 MWp installation—world’s largest port-based solar farm
- Ng Teng Fong General Hospital: pioneering healthcare-sector rooftop solar
- Floating PV at Bedok Reservoir and Pasir Ris
3. Eigen Energy
Best for Clean-Tech, Digital Integration & EV Readiness
📍 100G Pasir Panjang Road #05-07, Singapore 118523
🌐 eigen.energy
📞 +65 6589 8601
Overview:
Eigen Energy focuses on high-efficiency systems with strong digital integration. Their strength lies in combining solar PV with real-time energy dashboards, EV charging infrastructure, and long-term asset monitoring.
What They’re Known For:
- Digital energy monitoring via IoT cloud platforms
- Integration with green building BMS systems
- Robust installations for complex, shaded rooftops using microinverters
Technology Used:
- Panel brands: REC, Canadian Solar, and Hanwha Q CELLS
- Inverters: Enphase IQ8+, SolarEdge HD-Wave, and SMA Sunny Tripower
- EV Solutions: Schneider Electric EVlink, ABB Terra AC
Flagship Clients:
- DBS Bank HQ: Marina Bay office tower solar retrofit
- IKEA Alexandra & Tampines
- Shell petrol stations with solar EV canopy structures
Eigen also partners with Green Mark Platinum-certified buildings and assists with URA grants and LEED certifications.
4. Sembcorp Solar
Best for Utility-Scale and Floating PV
📍 30 Hill Street #05-04, Singapore 179360
🌐 sembcorp.com
📞 +65 6723 3113 | 📧 utilities@sembcorp.com
Overview:
Sembcorp is a well-known name in Singapore’s energy and infrastructure scene, managing over 2,600 MWp of solar and wind projects across Asia. It leads some of Singapore’s largest renewable infrastructure initiatives.
Signature Projects:
- Tengah Reservoir: Floating solar farm in partnership with PUB (60 MWp)
- Singapore Airlines HQ: 8.2 MWp rooftop system
- Numerous projects across Jurong Island for industrial users
Technical Capabilities:
- Engineering, procurement, and construction (EPC) in-house
- Offers Energy Service Agreements (ESAs) with long-term buy-back options
- SCADA-controlled solar generation, battery-ready options available
Best suited for large energy users, infrastructure developers, and public-sector facilities.
5. 10 Degree Solar
Best for Affordable, Entry-Level Home Systems
📍 56 Sembawang Road, #01-07, Singapore 779086
🌐 10degreesolar.com
📞 +65 9674 3974 | 📧 furqan@10degreesolar.com
Overview:
10 Degree Solar is a compact team focused on residential installations, making it ideal for landed homeowners seeking affordable and no-frills solar. They partner with JJ&K Engineering Pte Ltd, a licensed electrical firm.
Service Model:
- Site visit + aerial roof survey
- Customised layout planning for partial or full roof coverage
- Post-installation walkthrough and shading analysis report
Inclusions:
- 2-year Defects Liability Period
- Tier-1 monocrystalline panels (≥21% efficiency)
- Inverter choices: Growatt, Fronius, or SolarEdge
Target Audience:
First-time solar adopters in Yio Chu Kang, Upper Thomson, Sembawang, and Woodlands. Their pricing is one of the most competitive in the market for 3–5 kWp systems.
6. Cutech Green Ventures – Industrial-Grade Solar with Regional Strength
📍 #03‑18, Pioneer Junction, 3 Soon Lee Street, Singapore 627606 recordowl.com+6cutechgreenventures.com+6enfsolar.com+6
📞 +65 6665 0187 solar.totalenergies.asia+7cutechgreenventures.com+7cutegreenventures.com+7
✉️ enquiry@cutegreenventures.com
Overview:
A seasoned solar installer operating across Singapore, Malaysia, and India, Cutech focuses on cost-effective, high-volume solar projects. With over 22 MWp installed across 110+ sites in Singapore, they’re well-suited for factories, warehouses, and multi-site commercial deployments.
Highlights:
- In-house electrical and mechanical engineering teams for streamlined project execution
- Strong emphasis on value engineering—optimising component selection and mounting systems
- Bilingual project managers support both regional and local clients
Typical Projects:
- Logistics warehouse rooftops with 200–500 kWp systems
- Cross-border solar rollouts across ASEAN facilities
- Retrofit solar systems on existing industrial structures
7. Hao Solar – Fast-Growing Specialist in PV + EV Solutions
📍 10 Admiralty Street, Singapore 757695 haosolar.com.sg+10cutegreenventures.com+10enfsolar.com+10cutechgreenventures.com+2seas.org.sg+2cutechgroup.com+2linkedin.com+1signalhire.com+1
📞 +65 8020 8530 ✉️ info@haosolar.org linkedin.com+8haosolar.com.sg+8haosolar.org+8
Overview:
Founded in 2023, Hao Solar offers fast-track, engineer-led installations for residential landed homes and light commercial properties. Their small size enables quick design-to-installation cycles and close customer support.
Key Features:
- Custom designs for unconventional rooftops, such as L-shaped or multi-tier
- Bundled EV charger + PV system for turnkey clean energy solutions
- Optional annual maintenance including thermal imaging and performance audits
Ideal Client Profiles:
- Boutique hotels, small guesthouses with rooftop solar needs
- Landed properties in Admiralty, Sengkang, Pasir Ris wanting integrated EV + solar setups
8. SunPro Energies – Residential and Retail Solar with Aesthetic Appeal
📍 15 Kian Teck Drive, Singapore 628832 companieshouse.sg+9haosolar.org+9linkedin.com+9engie-sea.comscam.sg+7sunproenergies.com+7sunprogroup.co+7
📞 +65 6612 5673 ✉️ info@sunproenergies.com sunprogroup.co+6sunproenergies.com+6recordowl.com+6
Overview:
SunPro Energies delivers visually integrated solar for both homes and commercial buildings. Their expertise in solar canopies makes them a preferred choice for clients seeking both shade and solar output.
Standout Points:
- Rooftop systems featuring REC or Panasonic panels with excellent aesthetics and low-light performance
- Solar canopies for porches, carparks, and patios
- Full-system education and performance dashboard for homeowners
Notable Projects:
- Canopy-style installations at Ascendas Reit developments
- Rooftop solar on commercial malls such as Ngee Ann City
9. TotalEnergies Solar – Ideal for Multi-site Corporate Energy Strategies
📍 182 Cecil Street #27‑01, Frasers Tower, Singapore 069547 recordowl.com+8totalenergies.sg+8totalenergies.sg+8
📞 +65 6879 2200 solar.totalenergies.asia+1recordowl.com+1
Overview:
Part of the French multinational TotalEnergies, this team specializes in large-scale rooftop installations for companies in logistics, manufacturing, and automotive sectors.
Flagship Systems:
- 1.2 MWp system at Total Lubricants plant in Tuas
- 543 kWp installation at Carros Centre—the largest automotive hub in SG
Corporate Advantages:
- Ready-made PPA and long-term performance guarantee models
- Integration with ESG reporting tools and energy management dashboards
- Coordination across multiple sites via centralised monitoring
10. Engie Southeast Asia – Expert in Public Sector & Healthcare Solar
📍 108 Pasir Panjang Road #05‑04, Golden Agri Plaza, Singapore 118535 sg.linkedin.comengie.comdatacentreworldasia.com+6haosolar.com.sg+6haosolar.org+6engie-sea.comsgpgrid.comsolar.totalenergies.asia+7engie-sea.com+7timesbusinessdirectory.com+7
📞 +65 6513 8288 sgpbusiness.com+5engie-sea.com+5timesbusinessdirectory.com+5
Overview:
Engie SEA, backed by global energy leader Engie SA, combines solar PV with AI-driven energy management, especially for mission-critical sectors.
Key Project Highlights:
- Rooftop PV systems for KK Women’s & Children’s Hospital
- Dual-terminal solar installations at Changi Airport T1 & T2
Strengths:
- Smart energy management systems using digital twin technology
- Substantial experience in public-sector tenders and Green Mark certifications
- Sector expertise in data centre and healthcare energy resilience
Cost Breakdown, Maintenance, Depreciation & ROI (2025)
This section outlines the average cost of residential solar panel systems in Singapore, including typical installation prices, expected maintenance expenses, system depreciation over time, and return on investment. Understand how much you’ll pay, how long your system will last, and how quickly you’ll recover your investment.
Typical Residential System Costs:
| System Size | Gross Cost (excl. GST) | Estimated Yield | Annual Savings | Payback Period |
|---|---|---|---|---|
| 3 kWp | S$6,500 – S$7,500 | 3,600 kWh | S$1,150 | 5.5–6 yrs |
| 5 kWp | S$11,000 – S$13,000 | 6,200 kWh | S$1,900–2,000 | 5–5.5 yrs |
| 10 kWp | S$19,000 – S$23,000 | 12,400 kWh | S$3,900–4,100 | ~5 yrs |
Ongoing Maintenance:
- Optional cleaning every 6–12 months
- Annual inspection + thermal imaging: ~S$200–250
- Inverter replacement every 12 years (~S$1,500–2,000)
Panel Degradation:
- Using Tier-1 panels: 0.5% degradation/year, 85–90% output at Year 25
ROI & Long-Term Value:
- Internal Rate of Return (IRR): ~12–16%
- Total energy savings (25 yr): S$40,000–70,000
- Net ROI enhanced by SP Group’s ECIS export rates for surplus power fed back into the grid
Pre-Purchase Checklist: Ask Before You Buy
- Panel & Inverter Credibility
- Request datasheets and brand efficiency info
- Ask for performance degradation specs (≤0.55%/yr)
- Grid Interconnection Support
- Confirm contractor handles SP Group ECIS form submissions
- Ensure compliance with EMA licensing and SP Group regulations
- Monitoring and Remote Support
- Prefer systems with smartphone monitoring (SolarEdge, Enphase, Huawei)
- Ask about real-time alerts and remote diagnostics
- After-Sales & Warranty Coverage
- Secure ≥10 years of workmanship warranty
- Verify panel, inverter, and mounting system warranties
- Property Suitability
- Shade analysis from external tools (PVsyst, Aurora)
- Design layout suitability for irregular or tiled roofs
Final Verdict: Why First Solution Group Leads the Way
Solar is no longer just an environmental decision—it’s a financially sound investment for homeowners and businesses alike in Singapore. However, long-term savings and system performance depend heavily on choosing the right solar partner.
For most users—whether you’re a homeowner with a modest rooftop or a commercial entity aiming for consistent energy returns—First Solution Group stands out as the most well-rounded, technically competent, and customer-focused provider.
- Homeowners & Landed Property Owners: First Solution Group offers high-efficiency systems with tilt-optimised mounting (5°–10°) for Singapore’s rainfall conditions, integrated real-time monitoring, and optional EV charger bundles.
A typical residential system ranges from S$6,000 to S$13,000 (for 3–5 kWp) before GST and SP fees, with average payback in 5–6 years. Their transparent pricing and lifetime workmanship warranty ensure peace of mind for homeowners seeking dependable, grid-tied solar. - SMEs & Commercial Clients: With over 500 completed installations and in-house EPC capabilities, First Solution Group delivers cost-effective, grid-ready solutions without outsourcing.
- Public & Institutional Projects: While Engie, Sembcorp, and EDP Renewables dominate mega-scale tenders, First Solution Group has the agility to service mid-sized public projects and strata-titled developments with minimal disruption.
✅ Backed by a lifetime workmanship warranty, transparent pricing, and zero-upfront cost options, First Solution Group is the best choice for solar installation in Singapore in 2025.
📞 Get your free site assessment today – visit firstsolution.com.sg or call +65 98556824.
✅ Ready to Go Solar?
Book a no-obligation quote from First Solution Group or any of the providers on this list to get:
- Precise energy yield forecasts
- Detailed cost breakdowns (incl. SP Group fees)
- Financing, leasing, or PPA options available
- Roof suitability analysis and installation planning
📞 Choose your provider’s hotline above to get started—your journey to clean energy starts now.