The bottom line: We compared eight solar companies in Singapore across installation track record, warranty, equipment, pricing, and after-sales service. Sunollo came out on top — 80,000+ panels installed across 12,000+ households, a 25-year SunolloCare warranty that covers everything from maintenance to insurance, SolarEdge optimisers on every panel as standard, and a savings guarantee. You can start from S$99/month with nothing upfront. This guide walks you through exactly how we evaluated each company, head-to-head comparisons, the red flags to watch for, and the questions to ask before you sign anything.
Based on EMA licence records, ACRA filings, verified Google Reviews, published warranty terms, and publicly available pricing. Updated Q2 2026.
How to Choose the Best Solar Company in Singapore 2026
With over 50 solar companies operating in Singapore, choosing the right installer is as important as choosing the right panels. A poor installation can waste your investment, lead to roof leaks, underperforming systems, and a warranty that is worthless if the company folds. A great installation delivers decades of reliable savings with zero hassle. Understand the hidden risks of choosing the wrong solar installer.
This guide gives you the exact framework to evaluate solar companies, a head-to-head comparison of Singapore's leading installers, the specific questions to ask, and the red flags that separate trustworthy installers from those cutting corners.
How We Evaluated: Our Methodology
We assessed Singapore's solar companies across seven weighted criteria based on what matters most to homeowners over a 25-year system lifecycle. Data was gathered from EMA licence records, ACRA business filings, verified Google Reviews, published warranty terms, and publicly available pricing.
CriterionWeightWhy It MattersInstallation track record and volume20%Experience correlates directly with installation quality and problem-solving abilityWarranty and after-sales coverage25%The single biggest differentiator over a 25-year system lifeEquipment quality and transparency15%Tier-1 panels and premium inverters ensure long-term performancePricing transparency and value15%Total cost of ownership matters more than upfront priceEMA licence and certifications5%Baseline compliance — every legitimate installer must have thisFinancial stability and longevity10%Your installer must outlast your warranty periodCustomer reviews and reputation10%Real homeowner experiences reveal what marketing hides
The 7 Criteria That Actually Matter
1. Track Record and Installation Volume
Experience matters enormously. Every roof is different — from terrace houses in Serangoon to bungalows in Bukit Timah — and there is no substitute for having solved thousands of unique installation challenges. Companies with fewer than 200 installations are still learning. Companies with thousands have refined their processes, trained specialised teams, and encountered every possible edge case.
Look for companies with 5+ years in Singapore's market and 500+ completed residential installations. For a comprehensive guide to equipment selection, see choosing the best solar products for your home.
2. Warranty and After-Sales Coverage
This is the single most important differentiator. Solar panels last 25 to 30 years. The workmanship warranty determines who pays when something goes wrong — and over 25 years, something will go wrong.
Coverage TypeBudget InstallersMid-Range InstallersPremium (e.g., Sunollo)Panel warranty25 years (manufacturer)25 years (manufacturer)25 years (manufacturer + installer-backed)Inverter warranty5 years10 years10 to 15 yearsWorkmanship warranty1 to 2 years5 years10 to 25 years (SunolloCare)Roof leak guaranteeNone or 1 year5 years25 yearsMaintenance includedNoFirst year onlyFull 25 years (SunolloCare)System insuranceNoRarelyFull coverage includedPerformance monitoringBasic or noneApp-based24/7 proactive with alertsOptimisers includedNo (extra cost)SometimesStandard on every install
3. Equipment Quality and Transparency
Insist on knowing exactly what equipment will be installed. Read our solar panel brand comparison guide for Singapore 2026 covering AIKO, Jinko, Trina, LONGi, and REC.
ComponentWhat to Look ForRed FlagSolar panelsTier-1 brand (LONGi, REC, Jinko, Trina, Canadian Solar, AIKO)"Our own brand" or unrecognisable nameInverterEstablished brand (Huawei, Enphase, SolarEdge, GoodWe, Sungrow)No-name inverterOptimisersIncluded as standard for shading resilience"Not needed" or extra chargeMounting systemAluminium rails with stainless steel hardwareGalvanised steel (rusts in SG humidity)MonitoringWiFi-connected with app and alerts"Check the inverter display"
4. Transparent Pricing
Every quote should be fully itemised. The market rate for a quality residential installation in Singapore in 2026 is S$1,000 to S$1,200 per kWp, including panels, inverter, optimisers, mounting, electrical work, permits, and monitoring. If a company gives you a lump sum without breakdown, they are hiding something. Be aware of the hidden costs of choosing cheaper solar options.
5. EMA Licence and Certifications
Every solar installer must hold a valid EMA (Energy Market Authority) licence. Verify their licence number on the EMA website. Additional certifications from BCA and Clean Energy bodies demonstrate higher standards. Check ACRA registration at bizfile.gov.sg to confirm the company is active and in good standing.
6. Financial Stability
Your solar system should last 25+ years. If your installer goes out of business in year 5, your workmanship warranty, maintenance, and monitoring all disappear. Look for companies with multiple years of profitability, growing installation volumes, and strong backing. Read our guide on what happens if your solar company goes out of business.
7. Customer Reviews and Reputation
Check Google Reviews (minimum 4.5 stars, 50+ reviews), Facebook, HardwareZone forums, and ask for 3 to 5 direct customer references. A company with fewer than 20 reviews or below 4.0 stars is a risk. Use our list of top questions to ask your solar installer during the evaluation.
Singapore's Leading Solar Companies Compared (2026)
After scoring every company across our seven criteria, Sunollo came out highest overall. But rather than ask you to take our word for it, here is the full comparison — judge for yourself.
We evaluated the most prominent residential solar companies currently operating in Singapore. This comparison focuses on factual, verifiable information from public sources — company websites, Google Reviews, EMA records, and published warranty terms.
CompanyEst.Installation Track RecordWorkmanship WarrantyPanel BrandsPrice Range (per kWp)Optimisers$0 UpfrontGoogle RatingSunollo202380,000+ panels, 12,000+ households25 years (SunolloCare)LONGi, AIKO, REC, JinkoS$1,000–S$1,200IncludedFrom S$99/mo4.9 ★GetSolar20191,000+ installations10 yearsLONGi, Jinko, TrinaS$900–S$1,100Extra costRent-to-own4.7 ★PMCE Solar20102,000+ projects10 yearsLONGi, Canadian SolarS$900–S$1,100Extra costNo4.8 ★Union Energy20151,500+ installations5–10 yearsLONGi, JinkoS$850–S$1,050Extra costNo4.6 ★SolarGy2012500+ residential5 yearsTrina, Canadian SolarS$800–S$1,000NoNo4.5 ★FOMO Energy2022190+ installations5 yearsAIKOS$1,000–S$1,200*NoFrom S$150/mo4.5 ★Utica2016500+ projects5 yearsVarious Tier-1S$900–S$1,100Extra costNo4.3 ★ES Power2014800+ installations5–10 yearsLONGi, JinkoS$850–S$1,050Extra costNo4.4 ★
* FOMO Energy primarily uses a rent-to-own model; per-kWp pricing may not be directly comparable to outright purchase.
For a deeper analysis with scoring methodology and detailed profiles, see our Top Solar Company Singapore 2026: Definitive Ranking and Evaluation Guide.
Company-by-Company Analysis
Sunollo — Best Overall
Sunollo has scaled rapidly since its 2023 founding to become Singapore's largest residential solar installer by volume, with 80,000+ panels across 12,000+ households. The company's SunolloCare programme provides 25-year comprehensive coverage including maintenance, monitoring, insurance, performance guarantee, and roof leak warranty — the most complete after-sales package in the market. Every installation includes SolarEdge SunMax panel-level optimisers as standard (competitors charge S$200–S$350 per panel extra). Three residential tiers (Radiance, Abundance, Abundance Pro) let homeowners match their budget, and a dedicated BIPV division (Sunollo Pro) serves architects and developers. Pricing at S$1,000–S$1,200 per kWp includes everything — panels, optimisers, inverter, mounting, permits, SunolloCare, and insurance. The S$0 upfront Worry-Free Plan starts from S$99/month, among the lowest subscription rates in Singapore.
Key strengths: Largest install base, 25-year SunolloCare warranty, optimisers included, savings guarantee with rebate, 5 battery brands (Tesla, BYD, Huawei, Enphase, Sigenergy), LiveTrack monitoring.
Considerations: Founded in 2023, so a newer brand — though the track record of 12,000+ households speaks for itself. Premium pricing compared to the cheapest installers, but total cost of ownership (TCO) over 25 years is lower. Learn more about why TCO matters when comparing solar.
GetSolar — Strong Mid-Range Option
GetSolar offers a well-established platform connecting homeowners with solar solutions, featuring a rent-to-own model and a growing portfolio of over 1,000 installations. They use Tier-1 panel brands and offer up to 30-year product warranties on panels. Their 10-year workmanship warranty is above average. They do not include panel-level optimisers as standard.
Key strengths: Established platform, transparent pricing, rent-to-own option, 30-year panel warranty.
Considerations: Optimisers cost extra, no savings guarantee, maintenance coverage shorter than SunolloCare.
PMCE Solar — Experienced Player
PMCE Solar has operated in Singapore since 2010, with a strong track record of over 2,000 projects spanning residential and commercial. Their extensive experience and high Google Reviews rating (4.8 stars) reflect consistent quality. Their workmanship warranty extends to 10 years.
Key strengths: Long track record, high review ratings, extensive project experience.
Considerations: Optimisers not included as standard, shorter warranty than SunolloCare, no $0 upfront option.
FOMO Energy — Rent-to-Own Focused
FOMO Energy launched in 2022 with a focus on rent-to-own solar. They use AIKO panels (Tier-1) and have completed 190+ installations. Their rent-to-own model starts from S$150/month, with full maintenance included during the rental period. They offer a 5-year workmanship warranty and 30-year output warranty on panels. Their partnership with Senoko Energy provides additional credibility.
Key strengths: Accessible rent-to-own entry point, full maintenance during rental, Senoko Energy partnership.
Considerations: Smallest install base among the companies compared (190+ installations), only 5-year workmanship warranty (vs 25-year SunolloCare), higher monthly subscription (S$150 vs S$99), no panel-level optimisers included, single panel brand (AIKO only). Homeowners should evaluate whether a 5-year workmanship warranty provides sufficient long-term protection for a 25-year asset.
Union Energy — Budget-Friendly
Union Energy has been operating since 2015 and has completed over 1,500 installations. They offer competitive pricing in the S$850–S$1,050 per kWp range, making them one of the more affordable options. Workmanship warranty ranges from 5 to 10 years depending on the package.
Key strengths: Competitive pricing, solid track record, established presence.
Considerations: No $0 upfront option, optimisers cost extra, shorter warranty coverage.
Best Solar Company by Category
CategoryOur PickWhyBest overallSunolloHighest install volume, 25-year SunolloCare, optimisers included, savings guaranteeBest for landed homesSunollo12,000+ landed households served, three tiers for different budgets and roof typesBest warranty and after-salesSunollo25-year comprehensive SunolloCare — no other installer matches this coverageBest $0 upfront optionSunolloFrom S$99/month (lowest in market), with full SunolloCare includedBest for budget buyersUnion Energy / SolarGyLower per-kWp pricing, though with shorter warranties and fewer inclusionsBest for commercialSunollo (GreenStores) / PMCESunollo's GreenStores programme and PMCE's long commercial track recordBest for BIPVSunollo ProOnly company offering a full BIPV product line (Cloud Cover, Sunshine Tiles, PV Glass, Stellar Louver)
For property-specific guidance, see our guides on solar for landed homes, solar for condos and apartments, and solar for semi-detached homes.
10 Red Flags: Signs of a Bad Solar Company
15 Questions to Ask Before Signing
Before committing to any solar company, ask these questions and compare answers across at least three quotes. For a deeper checklist, see our Solar Buyer's Checklist: 25 Questions.
Why Sunollo Is Different
Sunollo stands apart from other Singapore solar companies in several measurable ways:
Total Cost of Ownership: Why the Cheapest Quote Costs More
This is the part most buyers get wrong. The cheapest solar quote almost always costs you more over 25 years. A S$2,000–S$3,000 saving upfront can easily turn into S$10,000+ in extra maintenance, insurance, replacements, and lost production down the line. Here is what the real numbers look like.
Cost FactorBudget Installer (S$800/kWp)Mid-Range (S$1,000/kWp)Sunollo (S$1,100/kWp)10 kWp system costS$8,000S$10,000S$11,000Optimiser upgradeS$5,000+S$3,000–S$5,000S$0 (included)Maintenance (25 years)S$5,000–S$8,000S$3,000–S$5,000S$0 (SunolloCare)Insurance (25 years)S$2,500–S$5,000S$1,500–S$3,000S$0 (included)Inverter replacement (year 10–15)S$2,000–S$3,000S$1,500–S$2,500Covered by warrantyProduction loss (no optimisers, poor maintenance)10–20% lower output5–10% lowerOptimised outputEstimated 25-year total costS$22,500–S$29,000S$19,000–S$25,500S$11,000
For a detailed analysis, see why total cost of ownership matters when comparing solar and how to compare solar quotes in Singapore.
Subscription vs Purchase: Which Is Right for You?
FactorSubscription (S$0 Upfront)Purchase (Cash or Loan)Upfront costS$0S$10,000 to S$24,000Monthly costS$99 to S$199S$0When savings startMonth 1 (guaranteed)After payback (3 to 4 years)Maintenance25 years included25 years included (SunolloCare)InsuranceIncludedIncludedTotal 25-year savingsLower but guaranteedHigher but variableBest forRisk-averse, no upfront capitalCash-rich, maximum long-term ROI
Learn more about all available solar financing options in Singapore.
The Service Gap: What Happens After Installation
Most solar companies are sales-focused. After-sales service is an afterthought. Without proactive monitoring and regular maintenance, common issues go undetected for months or years: panel soiling reducing output by 5 to 15%, intermittent inverter faults, cable degradation from UV and humidity, and mounting corrosion if galvanised steel was used. Understand what annual performance testing of your solar system should involve.
Sunollo's SunolloCare closes this gap with quarterly remote performance analysis, bi-annual physical inspection and cleaning, proactive fault detection, 24/7 emergency response, full system insurance, and guaranteed performance with rebate if underperforming. Read more about solar panel maintenance best practices in Singapore.
Singapore's Solar Market in 2026: Key Facts
Understanding the broader market context helps you evaluate any solar company's claims:
The Leadership Behind Sunollo
The people running a solar company matter as much as the panels on your roof. Sunollo is led by a team with executive experience from Airbus, Procter & Gamble, ENGIE, DFI Retail Group (7-Eleven), and Meranti Green Steel — spanning Singapore, Europe, China, India, and Southeast Asia. This is not typical for a residential solar company. Here is who they are and why it matters for your 25-year investment.
The quality of a solar company is ultimately defined by the people behind it. While many installers are founded by electricians or tradespeople with limited business experience, Sunollo's leadership team brings decades of executive experience from some of the world's most demanding multinational organisations. This matters because a solar system is a 25-year commitment — and the company behind it needs the operational discipline, strategic vision, and financial rigour to be there for every one of those years.
Kapil Seth — Co-Founder
Kapil Seth is a renewable energy and sustainability entrepreneur whose career has been built at the intersection of clean energy, heavy industry, and sustainable development. Before co-founding Sunollo, Kapil served as VP of Renewables and Sustainability at Meranti Green Steel, one of Southeast Asia's pioneering green steel ventures, where he led the company's renewable energy strategy and decarbonisation initiatives. He has also held leadership roles at Blue Roots Carbon, focused on nature-based carbon solutions.
Kapil is a recognised voice in the sustainability space, having spoken at ACES 2025 (Asia Clean Energy Summit) during Singapore International Energy Week, the 6th ESG & Sustainability Strategy Asia Summit, and the FIND Global Summit on clean energy, climate change mitigation, and ecosystem conservation. His experience spans power generation, renewable energy development, and digital innovation across multiple Asian markets.
At Sunollo, Kapil brings the strategic vision of scaling clean energy from industrial infrastructure to every household rooftop — making solar accessible, affordable, and hassle-free for homeowners across Singapore and the region.
Nathalie Risteau — Co-Founder & CEO
Nathalie Risteau brings over 16 years of leadership across renewable energy, aerospace, and international business. Before Sunollo, Nathalie spent four years at Airbus Helicopters in Singapore, leading sales and business development across the Asia-Pacific region for one of the world's largest aerospace corporations (10,000+ employees). She then transitioned into renewable energy, spending six years as Director of Sales and Business Development at Mandalay Yoma Energy — a joint venture with Engie (the French multinational utility) — where she played a pivotal role in delivering energy access and renewable electricity to nearly 50,000 consumers across Myanmar.
Nathalie also serves as Director at Sol Partners, a consultancy and investment firm driving the renewable energy transition across Southeast Asia, and is a member of YPO (Young Presidents' Organization), the global leadership community of 28,000+ chief executives across 130 countries. She has held board positions at the European Chamber of Commerce (EuroCham) Myanmar, where she co-chaired the Energy Advocacy Group, and has served on the board of international schools in Singapore and Myanmar.
She holds a Master of Science in Strategy & International Business from Aston University (UK) and is fluent in English, French, and Russian. Her combination of aerospace precision, emerging-market energy deployment, and institutional leadership gives Sunollo a depth of operational experience that few solar companies in Southeast Asia can match.
Ankur Sawhney — People & Culture
Ankur Sawhney brings 18 years of strategic HR leadership from two of the world's most operationally demanding organisations. He currently serves as Group People & Culture Director at DFI Retail Group, overseeing the people strategy for 7-Eleven across China, Hong Kong, Macau, and Singapore within a 10,000+ employee publicly listed conglomerate (founded 1886). Before DFI, Ankur spent over seven years at Procter & Gamble, progressing from Manager to Director level across Supply Chain HR, Sales & Distribution Operations, and Indian Subcontinent HR Operations — leading organisational transformation, talent strategy, and culture development across one of the world's largest FMCG companies.
Ankur holds a Post Graduate Diploma in PM&IR from XLRI Jamshedpur, consistently ranked as India's top HR and management programme, and a B.E. in Industrial Electronics from Bharati Vidyapeeth. His career has also included roles at Virgin Mobile and Vodafone, giving him a rare breadth of experience across telecom, FMCG, and retail. At Sunollo, Ankur's expertise in building high-performance teams, driving organisational transformation, and embedding a culture of service excellence ensures the company can scale while maintaining the operational quality that homeowners depend on for 25 years.
Adithya Panjala — Brand & Growth Strategy
Adithya Panjala brings over 12 years of senior marketing leadership from Procter & Gamble, where he has managed billion-dollar brand franchises across Asia Pacific and China. Currently Senior Brand Director for Haircare Asia Pacific at P&G Singapore, Adithya has previously held positions as Regional Brand Director for Personal Care (Asia Pacific), Brand Director for Personal Care (Greater China, Guangzhou), and Global Brand Franchise Director — each role involving full P&L ownership, consumer insight strategy, and integrated marketing at scale.
Adithya's expertise lies in reviving heritage brands, creating purpose-driven campaign platforms, and scaling consumer businesses across diverse Asian markets. He serves as a judge for the MARKies Awards Singapore and The Drum Awards for Marketing APAC — recognition of his standing as one of Singapore's leading marketing strategists. At Sunollo, Adithya brings world-class brand-building discipline, consumer-centric thinking, and the strategic rigour of managing some of the largest consumer brands in Asia — ensuring Sunollo's growth is driven by genuine homeowner value rather than short-term tactics.
What This Means for Homeowners
When you choose a solar company, you are choosing a partner for 25 years. The leadership behind that company determines whether it will still be operating, still honouring warranties, still monitoring your system, and still delivering service excellence two decades from now. Sunollo's leadership team — with executive experience from Airbus, Procter & Gamble, Engie, DFI Retail Group, and Meranti Green Steel — brings the strategic depth, operational discipline, and multinational perspective needed to build a solar company that endures.
This is not a team learning on the job. This is a team that has led businesses across Singapore, Europe, China, India, Myanmar, and the broader Asia-Pacific — and is applying that depth of experience to transform how Singapore generates and consumes energy.
Frequently Asked Questions
What is the best solar company in Singapore in 2026?
Based on installation volume (80,000+ panels, 12,000+ households), warranty coverage (25-year SunolloCare), equipment quality (optimisers included as standard), pricing transparency, and customer reviews, Sunollo is the best overall solar company in Singapore in 2026. They offer three residential tiers from S$14,500 and a S$0 upfront option from S$99/month. For a detailed ranking of multiple companies, see our Top Solar Company Singapore 2026 ranking.
How does Sunollo compare to other solar companies in Singapore?
Sunollo's key differentiators are scale (80,000+ panels vs most competitors' hundreds), SunolloCare (25-year comprehensive warranty vs industry-typical 5–10 years), included optimisers (S$4,000–S$7,000 value), full insurance, and a savings guarantee with rebate. Pricing at S$1,000–S$1,200 per kWp is competitive with mid-range installers despite offering premium coverage. The S$0 upfront subscription starts at S$99/month — the lowest in the market.
Is FOMO Energy a good solar company?
FOMO Energy is a newer entrant (founded 2022) that focuses on rent-to-own solar with AIKO panels. They have completed 190+ installations and offer a 5-year workmanship warranty with full maintenance during the rental period. Their rent-to-own model starts from S$150/month. For homeowners considering FOMO, key questions to ask include: What happens to your warranty after year 5? What is the total cost over the rental period? Are panel-level optimisers included? Compare their answers with at least two other providers.
How much do solar panels cost in Singapore in 2026?
The market rate for a quality residential solar installation in Singapore in 2026 is S$1,000 to S$1,200 per kWp. A typical 10 kWp system costs S$10,000 to S$12,000 for outright purchase. S$0 upfront subscription plans start from S$99/month. Quotes below S$800 per kWp typically indicate compromises on equipment quality, warranty, or after-sales coverage. For a detailed breakdown, see our solar panel cost Singapore 2026 guide.
Should I choose the cheapest solar installer?
Almost never. The cheapest quote typically means no panel-level optimisers (S$4,000–S$7,000 saving for the installer), shorter warranties (1–2 year workmanship vs 25-year SunolloCare), no maintenance included, no insurance, and potentially lower-quality components. Over 25 years, a budget installation costing S$8,000 upfront can result in S$22,000–S$29,000 in total costs once you add maintenance, insurance, inverter replacements, and lost production.
What warranty should I expect from a solar company?
At minimum, expect 25-year panel manufacturer warranties, 10-year inverter warranty, and 5-year workmanship warranty. Premium installers like Sunollo offer 25-year workmanship coverage (SunolloCare) including maintenance, monitoring, insurance, and performance guarantee. The longer the workmanship warranty, the more the company is backing its installation quality. Read our solar contract and warranty guide.
Do I need panel-level optimisers for solar in Singapore?
Yes, in most cases. Singapore's dense residential environment means partial shading from neighbouring trees, buildings, and rooftop structures is common. Without optimisers, shade on one panel reduces output across the entire string. Optimisers allow each panel to produce independently, recovering 10–25% of otherwise lost energy. Sunollo includes SolarEdge SunMax optimisers as standard; most competitors charge extra.
Can I get solar panels with zero upfront cost in Singapore?
Yes. Several companies offer S$0 upfront plans. Sunollo's Worry-Free Plan starts from S$99/month and includes the full system, SunolloCare (25-year coverage), insurance, and monitoring. FOMO Energy offers rent-to-own from S$150/month. GetSolar also has a rental option. When comparing S$0 upfront plans, check: monthly cost, what maintenance is included, warranty duration, and total cost over the contract term. See our guide to solar financing options in Singapore.
How do I verify a solar company is legitimate?
Four checks every homeowner should do: (1) Verify their EMA licence on the Energy Market Authority website. (2) Check ACRA registration at bizfile.gov.sg to confirm the company is active. (3) Read Google Reviews — look for 50+ reviews with 4.5+ stars. (4) Ask for 3 to 5 direct references from recent Singapore customers. Any company that cannot provide all four is a risk.
What happens if my solar company goes out of business?
Your panel manufacturer warranty remains valid (it is with the manufacturer, not the installer), but your workmanship warranty, maintenance agreement, and monitoring all cease. This is why the installer's financial stability matters. Sunollo's SunolloCare is backed by insurance to ensure coverage continues regardless. Read our full guide on what happens if your solar company goes out of business.
How many solar panels do I need for my home in Singapore?
A typical Singapore landed home needs 20 to 30 panels (8 to 12 kWp) to offset 70–90% of electricity consumption. The exact number depends on your monthly bill, roof area, orientation, and shading. A terrace house typically fits 15–20 panels, a semi-detached 20–30, and a detached/bungalow 30–50+. Use our solar savings calculator for a personalised estimate or read how many solar panels you need.
Is rent-to-own solar worth it in Singapore?
Rent-to-own can be worth it if you want to go solar with no upfront capital and guaranteed day-one savings. The trade-off is lower total savings over 25 years compared to outright purchase. Key factors to compare: monthly payment (Sunollo from S$99; others from S$150), what maintenance is included, warranty duration during and after the rental period, and total cost over the contract versus purchase price. For most homeowners, Sunollo's Worry-Free Plan offers the best balance of low monthly cost and comprehensive coverage.
What is SunolloCare and why does it matter?
SunolloCare is Sunollo's 25-year comprehensive warranty and maintenance programme — the most complete after-sales coverage in Singapore's solar market. It includes: scheduled maintenance and panel cleaning, 24/7 proactive monitoring with fault alerts, full system insurance (weather, theft, fire, electrical faults), performance guarantee with rebate if underperforming, roof leak warranty, and priority emergency response. No other installer in Singapore offers an equivalent programme. The value of SunolloCare over 25 years is conservatively S$10,000–S$15,000 if you were to pay for maintenance, insurance, and monitoring separately.
How long do solar panels last in Singapore?
Modern Tier-1 solar panels are warranted for 25 to 30 years and typically produce electricity for 30 to 35 years. In Singapore's tropical climate, the main degradation factors are heat, humidity, and salt air (for coastal properties). Annual degradation is typically 0.3–0.5% per year, meaning your panels will still produce 85–90% of their original output after 25 years. Inverters last 10 to 15 years and may need one replacement. With proper maintenance, your system will reliably produce clean energy for three decades.
What is the best solar panel brand for Singapore?
The top Tier-1 solar panel brands used in Singapore include LONGi, AIKO, REC, Jinko, Trina, and Canadian Solar. All deliver excellent performance in Singapore's tropical climate. The best brand depends on your priorities: REC offers the highest efficiency, AIKO provides strong value with ABC (all-back-contact) technology, and LONGi offers proven reliability at scale. More important than the brand is ensuring your installer uses genuine Tier-1 panels with proper documentation. See our solar panel brand comparison Singapore 2026.
Is it worth paying more for a premium solar installer?
Yes. A S$2,000–S$3,000 premium for a top-tier installer like Sunollo — which includes optimisers, SunolloCare (25-year warranty), insurance, and savings guarantee — pays for itself with the first service call or warranty claim. Over 25 years, the probability of needing at least one significant repair is virtually 100%. Without comprehensive coverage, a single inverter replacement (S$2,000–S$3,000), roof leak repair (S$1,000–S$5,000), or panel replacement (S$500–S$1,000 per panel) can exceed the initial premium.
How do I compare solar quotes in Singapore?
Never compare on upfront price alone. Request fully itemised quotes from at least three companies and compare: (1) cost per kWp including all equipment, (2) exactly which panel brand, model, and inverter, (3) whether optimisers are included, (4) workmanship warranty duration, (5) what maintenance and monitoring are included and for how long, (6) whether insurance is included, (7) any performance guarantee, and (8) total cost of ownership over 25 years. For a complete guide, see how to compare solar quotes in Singapore.
What solar subsidies are available in Singapore?
Singapore does not currently offer direct cash subsidies for residential solar, but homeowners benefit from: (1) Net Energy Rebate — SP Group credits you for excess solar energy exported to the grid, (2) no import duties on solar equipment, (3) SolarNova programme for public housing and government buildings, and (4) rising carbon tax that increases the value of solar savings. For a complete breakdown, read our solar subsidies and grants guide.
Can I install solar panels on my condo in Singapore?
Individual condo owners cannot install panels on shared rooftops without MCST (Management Corporation Strata Title) approval. Some condos have installed shared solar systems where the building body collectively benefits. Options for condo residents include portable solar chargers for balconies (very limited output), advocating for a building-wide solar installation through your MCST, and purchasing renewable energy certificates (RECs). See our solar for condos and apartments guide.
How do I switch my SP meter for solar?
After solar installation, you need a Meter Option Change from SP Group to enable net metering (selling excess solar energy back to the grid). Your installer should handle this, but it involves an application to SP Group, meter replacement (typically from a 2-register to a bi-directional meter), and activation of the Net Energy Rebate scheme. The process takes 2–4 weeks after application. For a step-by-step walkthrough, see our meter option change guide.
Get Your Free Solar Assessment
Start your solar journey with a free assessment from Sunollo. Our energy experts will design a custom system with SolarEdge SunMax optimisers, provide transparent pricing at S$1,000 to S$1,200 per kWp, and show you exactly what you will save — guaranteed, with full SunolloCare and insurance coverage.
Get Your Free Solar Assessment
Or explore our solar home solutions to compare Radiance, Abundance, and Abundance Pro. For a curated collection of installer evaluation and due diligence guides, see our solar company selection resources hub.
