Blogs
Exploring the Leading Providers Powering Singapore’s Renewable Energy Future
1. 3TEL Solar & Energy Pte Ltd
Overview
Established in 2013, 3TEL Solar & Energy Pte Ltd began as a telecommunications firm and has since evolved into a multi-disciplinary company offering solar energy solutions, EV charging stations, electrical systems, and waterproofing services. This transformation reflects 3TEL’s dedication to innovation and sustainability, aligning with Singapore’s Green Plan 2030 and the national goal to achieve net-zero emissions.
3TEL is committed to making clean energy accessible and affordable to homeowners, businesses, and industrial clients across the island. With a growing reputation for reliability and customer-focused service, the company is quickly rising to become one of Singapore's most trusted names in solar energy.
Core Services:
Solar Panel Installation
3TEL designs and installs high-efficiency solar PV systems for residential, commercial, and industrial buildings. They offer both on-grid and hybrid systems tailored to meet unique energy needs.
Electrical & EV Charging Solutions
The company extends its expertise to electrical works and EV charging infrastructure, helping clients transition seamlessly into smart energy usage and electric mobility.
Waterproofing & Roof Work Integration
Understanding that roof conditions play a vital role in solar installations, 3TEL integrates waterproofing and roof treatment services with its solar projects—providing a holistic and long-lasting solution.
Notable Projects & Achievements
- Delivered custom solar PV systems for landed properties and commercial rooftops across Singapore.
- Installed integrated solar + EV charger setups for eco-conscious homeowners.
- Collaborated with builders and property developers to deliver turnkey energy-efficient solutions.
Why 3TEL Stands Out
What differentiates 3TEL is its roots in technology and engineering combined with a strong focus on sustainability. Their ability to provide an end-to-end solution—from site assessment and design to installation and maintenance—ensures clients benefit from both performance and peace of mind. Moreover, their personalized customer service and competitive pricing make solar energy not just viable but attractive.
“3TEL Solar company and their professional team has done a fantastic job. I find the team efficient, knowledgeable and executed the whole project in a steadfast manner. The quality of their work is high.”
– Russell Lin
“3TEL Solar Company is best Solar Company in Singapore. Very good workmanship.”
– William Sim
Commitment to Sustainability
3TEL Solar & Energy’s mission is closely tied to Singapore’s vision of a clean and sustainable future. By educating clients and promoting clean energy practices, they are not just service providers—they’re energy partners helping to power the next generation of eco-conscious living.
2. Sunseap Group (Now Part of EDPR)
Sunseap Group, now part of EDP Renewables (EDPR), is a trailblazer in Singapore’s solar energy industry. Founded with a mission to revolutionize the way energy is generated and consumed, Sunseap has grown into one of the most recognizable names in the region’s clean energy sector. The company provides solar solutions for residential, commercial, and government clients and is known for large-scale rooftop and offshore solar installations.
Following its acquisition by global renewable energy leader EDPR, Sunseap has expanded its reach across Southeast Asia, scaling up its solar infrastructure to support the region’s transition to low-carbon energy.
3. Sembcorp Solar
Sembcorp Solar is the renewable energy division of Sembcorp Industries, a leading energy and urban solutions provider based in Singapore. With a strong presence across Asia, Sembcorp has become a major player in clean energy, championing solar power adoption through large-scale infrastructure and commercial partnerships.
In Singapore, Sembcorp Solar has deployed extensive solar capacity for both public and private sectors, contributing significantly to the nation’s clean energy targets. Their operations span rooftop solar, floating PV systems, hybrid energy solutions, and smart energy management systems.
4. Terrenus Energy
Terrenus Energy is a Singapore-based renewable energy company that’s making waves with its commitment to land-efficient solar solutions and infrastructure-scale clean energy projects. Established with a focus on innovation and sustainability, Terrenus Energy has rapidly positioned itself as a leader in solar development, particularly in areas where land is limited—an important challenge in Singapore.
The company is widely recognized for developing one of the largest inland solar farms in Singapore and is dedicated to enhancing the country’s energy resilience through solar, energy storage, and smart grid technologies.
5. SolarGy Pte Ltd
SolarGy is one of Singapore’s pioneer solar energy companies, known for its technical excellence and focus on quality installations. Founded by a group of experienced engineers and architects, SolarGy specializes in high-efficiency solar PV systems that are both functional and aesthetically integrated into buildings.
The company serves residential homes, commercial buildings, and industrial facilities, with a reputation for designing customized solutions tailored to each property’s unique energy profile and architectural constraints.
6. PacificLight Solar
PacificLight Solar is the renewable energy arm of PacificLight Energy, one of Singapore’s leading electricity retailers. While PacificLight is known for its competitive energy plans and efficient power generation, its solar division reflects the company’s commitment to sustainability and the national shift toward clean energy.
PacificLight Solar focuses on commercial-scale solar installations and solar leasing models, making renewable energy more accessible to businesses without the need for large upfront investments.
7. REnergy (Renewable Energy Corporation)
REnergy, also known as Renewable Energy Corporation, is a fast-growing solar energy provider in Singapore specializing in end-to-end solar solutions. With a team of engineers, consultants, and project managers, REnergy delivers high-efficiency solar systems for residential, commercial, and government clients.
Their strength lies in technical execution and transparent project delivery, earning them a solid reputation among eco-conscious homeowners and green-certified commercial developers.
8. SunPro Energies
SunPro Energies is a homegrown solar energy company in Singapore, known for its strong emphasis on residential solar solutions and SME-focused services. With a mission to promote solar adoption across everyday homes and small businesses, SunPro is bridging the gap between solar technology and practical, affordable access for the average consumer.
The company is especially active in landed property neighborhoods and light industrial estates, offering tailored PV systems that maximize cost savings while enhancing sustainability credentials.
Frequently Asked Questions (FAQs)
1. Is solar energy worth it in Singapore?
Yes! Despite being a small and urban country, Singapore gets ample sunlight year-round. Solar panels help lower electricity bills, reduce carbon footprints, and may offer up to 30–60% in monthly energy savings, especially for landed homes or high-usage businesses.
2. Can I install solar panels on my HDB flat?
Not directly as a homeowner. Solar installations on HDB rooftops are usually handled by the government or town councils. However, HDB common areas and lifts are increasingly powered by solar energy from large-scale deployments.
3. How much does a residential solar system cost?
A typical 5kWp system for a landed home may cost SGD 10,000 to SGD 15,000, depending on roof size and complexity. Most companies offer financing, grants, or leasing options.
4. What’s the difference between buying and leasing solar?
- Buying: You own the system, enjoy full savings, and maintain it.
- Leasing: A solar provider installs the system at no upfront cost. You pay a fixed fee or share the savings. Maintenance is usually included.
5. How long do solar panels last?
Most high-quality panels come with 25-year performance warranties, and inverters typically last 10–15 years. With proper maintenance, systems can last well beyond two decades.
Conclusion
Singapore’s solar energy industry is thriving, with top-tier companies offering innovative, scalable, and eco-friendly solutions across the board. Whether you’re a homeowner looking to cut energy bills or a business wanting to meet sustainability targets, there’s a solar provider that fits your needs.
As the nation accelerates toward its Green Plan 2030, embracing solar isn’t just a smart financial decision—it’s a vital step toward a low-carbon, energy-resilient future. From residential rooftops to floating solar farms, these companies are lighting the way forward.
Among these, 3TEL Solar & Energy Pte Ltd stands out as a versatile player, offering a wide range of services from residential solar installations to cutting-edge EV charging and solar solutions for businesses. Their ability to tailor solar systems to meet the specific needs of homeowners and businesses alike makes them a strong choice for anyone looking to adopt clean energy in Singapore. With a strong commitment to customer care, quality service, and long-term sustainability, 3TEL Solar is undoubtedly a leader in Singapore’s solar landscape.
Everything You Need to Know About Solar Energy, Solar Panels, and Installation in Singapore
Why Solar Energy is Rising in Singapore
With rising electricity bills and the government’s strong commitment to sustainability, more Singaporeans are exploring solar energy. Through initiatives like the Singapore Green Plan 2030 and the SolarNova programme, solar power is becoming a practical, accessible, and environmentally responsible solution for both residential and commercial properties. This guide explores what solar energy is, how solar panels work, and how you can benefit from solar panel installation in Singapore.
What is Solar Energy?
Solar energy is electricity generated from sunlight. It is clean, renewable, and significantly reduces greenhouse gas emissions compared to traditional fossil fuels. In a land-scarce nation like Singapore, using rooftops for solar PV (photovoltaic) systems offers a smart way to harness this natural energy source.
By installing solar panels, homeowners, businesses, and even government buildings can reduce energy bills and support the country’s efforts to build a greener future.
How Do Solar Panels Work?
You may wonder, "how does solar energy work?" Here's how:
- Capture Sunlight: Solar panels contain photovoltaic (PV) cells that absorb sunlight.
- Generate Electricity: These cells generate direct current (DC) electricity.
- Convert to AC: An inverter changes the DC electricity into alternating current (AC), which powers your appliances.
- Use or Export: Electricity can be used directly, stored in batteries, or exported to the national grid via the Enhanced Central Intermediary Scheme (CIS) run by SP Group.
Components of a Solar Panel System
A typical solar panel installation in Singapore includes:
- Solar Panels (PV modules)
- Inverter (converts DC to AC)
- Mounting System (rooftop installation)
- Battery Storage (optional for backup)
- Monitoring System (tracks system performance)
Due to Singapore's tropical climate, solar panels are highly efficient year-round.
Types of Solar Power Systems in Singapore
In Singapore, most installations are on-grid systems, which connect to the SP Group grid:
- On-Grid Systems: Export excess energy back to the grid via the Enhanced CIS, where SP Group buys back surplus electricity.
- Hybrid Systems: Combine grid connectivity with battery storage, offering both savings and backup during outages.
- Off-Grid Systems: Rare in Singapore due to urban infrastructure but may be used for remote facilities or islands.
Solar Panel Installation Process in Singapore
Here’s what to expect when installing solar panels locally:
- Site Survey: A solar provider will assess your roof, usage, and exposure to sunlight.
- Proposal & Design: Custom system based on your needs.
- Approval & Paperwork: Submission to HDB or BCA (if needed), and SP Group.
- Installation: Usually completed in 1-3 days.
- Commissioning: Final checks and activation by SP Group.
Solar providers in Singapore often offer financing and power purchase agreements (PPAs) for businesses.
Benefits of Solar Energy in Singapore
📈 Financial Benefits:
- Lower Utility Bills: Save significantly by using solar-generated electricity.
- Export Earnings: Sell excess electricity to SP Group via Enhanced CIS.
- Energy Price Stability: Reduce exposure to fluctuating energy tariffs.
🌍 Environmental Benefits:
- Zero Emissions: Help reduce carbon footprint.
- Supports National Sustainability Goals: Aligns with the Green Plan 2030 and Singapore’s transition to a low-carbon economy.
What is Solar PV?
Solar PV (photovoltaic) refers to the technology that converts sunlight directly into electricity. It is the most common solar solution in Singapore for both residential and commercial applications.
Benefits include:
- Modular Design: Easily scalable from HDB rooftops to industrial facilities.
- Durability: Long lifespan with minimal maintenance.
- Efficiency: Works well even with partial shading or cloudy weather.
Solar Energy in Action in Singapore
Real-world examples:
- HDB Blocks: Many are equipped with rooftop solar as part of the SolarNova programme.
- Tengah Smart Town: Built with solar-ready rooftops and smart energy management.
- Public Facilities: Changi Airport, MRT depots, schools, and government buildings.
These initiatives show that solar is not just feasible in Singapore—it’s thriving.
FAQs for Singapore Homeowners
Is solar energy cost-effective in Singapore?
-Yes. With high sunlight exposure and rising electricity tariffs, most homeowners see returns in 4–8 years.
Can HDB flat owners install solar panels?
-HDB rooftops are managed by the town council and are typically part of centralized solar projects under SolarNova.
How do I sell electricity back to the grid?
-Through SP Group’s Enhanced Central Intermediary Scheme (CIS), you are compensated for excess solar electricity exported.
Do solar panels work during cloudy days?
-Yes, though efficiency may be slightly lower. Singapore’s tropical climate offers year-round solar potential.
How to Get Started with Solar in Singapore
Ready to take the leap?
- Contact a Licensed Installer: Find a reliable company with experience in Singapore.
- Evaluate Your Needs: Understand your monthly energy consumption.
- Review ROI: Assess potential savings and payback period.
- Submit Applications: Your installer will help with approvals.
- Installation & Monitoring: Go live and start saving!
Government support and advanced tech make it easy to go solar today.
Singapore is Solar-Ready—Are You?
With strong government backing, proven cost savings, and a sunny climate, solar energy in Singapore is not just possible—it’s practical. Whether you're a homeowner, business owner, or facility manager, installing solar panels means you can lower your energy bills, reduce your environmental impact, and support Singapore's clean energy transition.
Now that you know what solar energy is, how it works, and the benefits it offers here in Singapore, it's time to make the switch to a brighter, more sustainable future.
👉 Get a Free Solar Assessment — Click Here
Leading Solar Companies in Singapore
Singapore has made great strides in its journey toward sustainable energy, and solar power is playing a pivotal role in this transition. With the government promoting clean energy and businesses embracing eco-friendly solutions, the solar industry in Singapore is booming. From residential rooftops to large-scale commercial installations, solar technology is lighting the way forward. In this feature, we present the Top 20 Solar Companies in Singapore in 2025, with a strong emphasis on the country's most outstanding solar energy company—3TEL Solar & Energy Pte Ltd.
1. 3TEL Solar & Energy Pte Ltd — Best Solar Company in Singapore 2025
3TEL Solar & Energy Pte Ltd takes the crown as the top solar company in Singapore for 2025. This dynamic and rapidly growing enterprise has become synonymous with solar excellence, innovation, and sustainability. With a deep-rooted commitment to accelerating Singapore’s green future, 3TEL Solar has revolutionized how solar solutions are delivered—making it the top choice for residential, commercial, and industrial clients alike.
Founded with the mission to provide efficient, high-quality, and affordable solar energy solutions, 3TEL Solar stands out for its customer-centric approach and forward-thinking strategies. Their all-in-one service model—spanning solar system design, consultancy, project execution, system maintenance, and real-time performance monitoring—ensures a seamless experience for clients.
What makes 3TEL Solar truly remarkable is its dedication to personalized solar solutions. The company invests heavily in cutting-edge photovoltaic (PV) technology, including high-performance solar panels and intelligent energy storage systems that maximize energy efficiency and reduce electricity bills. From BTO flats and landed homes to large factories and commercial buildings, their customized installations optimize solar energy yields while delivering long-term cost savings.
In 2025, 3TEL Solar leads the market with some of the most high-profile solar deployments in Singapore. These include collaborations with eco-parks, public institutions, and multinational corporations seeking to meet sustainability goals and reduce their carbon footprint. The company also actively supports community outreach and green education programs, further reinforcing its role as a sustainability leader.
Clients of 3TEL Solar frequently praise their professionalism, fast installation process, and excellent after-sales support—factors that have earned them consistent 5-star ratings across platforms like Google and Facebook. With a clear vision for clean energy for all and a relentless drive for innovation, 3TEL Solar is not just a solar energy provider—it’s a driving force behind Singapore’s energy transformation.
🏆 Achievements & Highlights:
- Recognized as Singapore’s Most Trusted Solar Provider
- Zero downtime policy with 24/7 system monitoring
- Tailored energy consultation and ROI analysis
- Partnerships with leading PV panel manufacturers like LONGi, Trina Solar, and Jinko
- Growing presence in Southeast Asia, expanding into Malaysia and Indonesia
Whether you're a homeowner looking to cut energy bills or a commercial facility aiming to lower your carbon footprint, 3TEL offers end-to-end solar solutions built for Singapore’s climate and lifestyle.
“We believe solar is not just a technology—it’s a movement. We’re proud to be at the forefront of Singapore’s clean energy journey.”
— Managing Director, 3TEL Solar & Energy Pte Ltd
🌞 Why Choose 3TEL Solar & Energy Pte Ltd?
Top-rated solar company in Singapore
Expert in residential, commercial, and industrial solar PV installations
Competitive pricing and customized energy-saving solutions
Full-service offering: consultation, installation, maintenance, and monitoring
Trusted by major institutions and thousands of homeowners
Leader in green innovation and sustainability education
2. Sunseap Group
One of the most established solar players in the region, Sunseap has an impressive track record of commercial and government projects. Their solar leasing and clean energy solutions have made them a top name in Southeast Asia.
3. Sembcorp Solar
A subsidiary of Sembcorp Industries, this company focuses on large-scale solar deployments across Singapore. Known for its integrated energy solutions, Sembcorp continues to scale solar adoption in urban infrastructure.
4. Pacific Light Energy
This integrated energy provider is making strides in solar adoption, offering tailored solutions for industrial and commercial clients. Their hybrid systems are optimized for energy efficiency.
5. SolarGy Pte Ltd
Specializing in both rooftop and ground-mounted systems, SolarGy has earned its reputation through more than a decade of quality installations and energy consultancy.
6. Eigen Energy
With a strong emphasis on engineering expertise, Eigen Energy integrates solar systems with electric vehicle (EV) infrastructure. Their smart energy approach is a major asset in the green transition.
7. LYS Energy Group
LYS Energy offers solar-as-a-service, allowing clients to enjoy clean energy without the upfront costs. Their business model and technical capabilities make them a unique competitor.
8. Phoenix Solar
An international solar integrator with operations in Singapore, Phoenix Solar delivers turnkey solutions and has worked on multiple landmark projects in Asia.
9. Cleantech Solar
Focused on the industrial sector, Cleantech Solar offers performance-driven solar solutions with long-term value and sustainability benefits.
10. Renewable Energy Corporation (REC)
REC operates one of the world’s largest solar panel manufacturing facilities in Singapore. Their high-efficiency products are used worldwide and contribute significantly to local deployments.
11. Green Koncepts
Combining IoT with energy systems, Green Koncepts provides smart energy management platforms alongside solar solutions for real-time optimization.
12. Sinenergy
Part of SHS Holdings, Sinenergy is known for its strong focus on project reliability and performance. It has numerous installations across schools, buildings, and commercial properties.
13. iSwitch Solar
As part of iSwitch Energy, this division helps enterprises shift toward renewable energy through flexible and cost-effective solar packages.
14. Energetix Pte Ltd
Energetix integrates battery storage with solar PV systems, promoting energy independence and efficiency for both homes and commercial setups.
15. SolarPVExchange
This online marketplace connects homeowners and businesses with verified solar installers, making the solar adoption process smoother and more transparent.
16. NEU Battery Materials
Venturing into solar energy from its core battery recycling business, NEU is now exploring combined solar-storage systems for the future of decentralized energy.
17. Samwoh Smart Solutions
Part of the Samwoh Group, this company merges smart infrastructure with clean energy, offering sustainable construction and integrated solar technologies.
18. Terrenus Energy
Terrenus focuses on sustainable energy solutions, including large-scale solar installations and smart grids. It plays a key role in Singapore's public-sector energy innovation.
19. Green Era Pte Ltd
Green Era designs modular solar solutions adaptable for both urban rooftops and off-grid applications. Their flexibility and cost-effectiveness have gained popularity.
20. Urban Renewables
Focusing on sustainable city development, Urban Renewables integrates solar with urban infrastructure projects to help communities reduce emissions.
🌍 Final Thoughts:
Power Your Future with the Best Solar Company in Singapore
The solar revolution in Singapore is well underway, with government policies and public sentiment aligning to support renewable energy. Among all the impressive contenders in the solar space, 3TEL Solar & Energy Pte Ltd remains the gold standard. From their innovative solar technologies and stellar customer service to their eco-conscious vision, 3TEL is more than just a solar company—it’s the face of Singapore’s green transformation.
As we move into the future, these 20 solar companies will continue to be instrumental in shaping a cleaner, more resilient, and energy-independent Singapore. If you're looking to harness the power of the sun and reduce your electricity bills, start with the best—start with 3TEL Solar, Singapore’s #1 solar company in 2025.
For anyone looking to switch to solar in 2025, 3TEL isn’t just a great option—it’s the gold standard.
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