Congratulations — you have just made one of the smartest, longest-lasting investments a Singapore homeowner can make. Signing up with Sunollo means you are joining thousands of households who have already made the switch to clean, affordable solar energy. Before your installation day arrives, we want to make sure you feel completely confident about every component, specification, and protection built into your system.
This guide walks you through exactly what you have purchased — from the premium AIKO solar panels on your roof to the Sungrow Radiance inverter powering your home, the SS 638-compliant cabling connecting it all, and the industry-leading 10-year Sunollo Care Package that backs every installation. You made the right call. Here is why.
Your Solar Panels: AIKO Technology
At the heart of your Sunollo system are AIKO solar panels — one of the most advanced photovoltaic technologies available in the world today. AIKO is a globally recognised solar manufacturer at the forefront of ABC (All Back Contact) cell technology, which eliminates the front-side metal contacts that shadow conventional panels and achieves some of the highest commercial efficiencies available on the market.
Why AIKO Stands Apart
AIKO’s ABC technology places all electrical contacts on the rear of the cell, maximising the active light-absorbing surface area. The result is a panel that generates more kilowatt-hours per square metre than most competitors — which matters enormously when your roof space is finite. Higher efficiency means more energy from the same footprint, faster payback, and greater lifetime savings.
Key characteristics of your AIKO panels:
- Cell Technology: All Back Contact (ABC) — zero front-side shading from busbars, maximum light absorption
- Efficiency: Among the highest available on the market, consistently outperforming standard PERC and TOPCon panels in real-world conditions
- Temperature Coefficient: Low temperature coefficient ensures stronger performance during Singapore’s warm, sunny days when most panels suffer efficiency losses
- Durability: Fully rated for decades of outdoor exposure including salt mist corrosion, tropical humidity, and heavy rainfall
- Warranty: 25-year product and linear power output warranty backed by AIKO’s international manufacturing quality standards
In Singapore’s climate — high humidity, intense equatorial sun, and regular heavy rain — AIKO’s build quality and warranty terms are precisely what your roof needs for the long term.
Your Inverter: Sungrow Radiance (10kW / 15kW / 20kW)
Your system is paired with a Sungrow Radiance inverter — available in 10kW, 15kW, and 20kW configurations matched to your specific system capacity. Sungrow is the world’s largest solar inverter manufacturer by installed capacity, with over 600 GW of power electronics deployed globally as of 2025. This is not a niche product — it is the most trusted inverter brand on the planet, trusted by utilities, commercial operators, and homeowners across more than 170 countries.
What the Inverter Does
Your solar panels generate direct current (DC) electricity from sunlight. Your home runs on alternating current (AC). The inverter is the brain of the entire system — it converts DC to AC with exceptional efficiency, feeds your home’s electrical loads, exports any surplus energy back to the SP Group grid, and monitors your entire system’s performance in real time. Without the inverter, your panels are simply inert glass and silicon. With the Sungrow Radiance, they become a precision energy machine.
Sungrow Radiance: Key Specifications
- Models available: 10kW, 15kW, and 20kW — your specific size is documented in your contract on the Sunollo app
- Conversion efficiency: Up to 98.4% — meaning almost none of your solar energy is wasted in the DC-to-AC conversion process
- Smart monitoring: Real-time generation and export data visible 24/7 via the iSolarCloud app on your smartphone
- Protection rating: IP65 rated — fully sealed against dust and water ingress, built for Singapore’s tropical conditions
- Grid compliance: Fully compliant with SP Group’s connection requirements and EMA’s technical interconnection standards for Singapore
- Warranty: 10-year inverter warranty as standard, reflecting Sungrow’s confidence in long-term product reliability
.png)
Why Sungrow?
Sungrow’s Radiance series was selected by Sunollo after rigorous evaluation of performance data, local service network availability, spare parts supply in Singapore, and long-term manufacturer stability. When you choose a solar inverter, you are choosing a partner for the next 20+ years. Sungrow’s Singapore-certified local service infrastructure means that if you ever need support or a component replaced, that service is available in-country — fast.
Your Cabling: Engineered to SS 638 Standards
Every cable in your Sunollo system — from the panels on your roof to the inverter and main distribution board — is specified and installed in strict accordance with Singapore Standard SS 638: Code of Practice for Solar Photovoltaic Systems. SS 638 is the national governing standard for all grid-connected solar PV installations in Singapore, and it sets rigorous requirements for both DC and AC cabling to ensure safety, performance, and decades of reliable operation.
DC Cabling (Solar Panels to Inverter)
The cables running from your solar panels to your inverter carry high-voltage direct current and must be engineered to survive decades of outdoor exposure. Under SS 638, your DC cabling meets the following specifications:
- Cable type: Double-insulated, UV-resistant, outdoor-rated solar DC cable — typically TÜV-certified 6mm² or 4mm² cross-linked polyethylene (XLPE), sized according to string length and operating current
- UV resistance: Rated for decades of direct exposure under Singapore’s intense equatorial UV index without insulation degradation
- Temperature rating: Rated to withstand sustained high temperatures including roof cavity heat build-up in Singapore’s climate
- Connectors: MC4 locking connectors with IP67 waterproof rating — the global industry standard for all solar DC string connections
- Cable management: DC cables are run in conduit or protective trunking wherever they pass through living or occupied spaces, in compliance with SS 638 segregation requirements
- Overcurrent protection: String fuses or combiner protection is installed where required by SS 638 to protect against fault currents and arc flash risk
AC Cabling (Inverter to Distribution Board)
From the inverter to your home’s main distribution board, the AC circuit carries usable electricity to power your home. SS 638 requires the following for all AC-side wiring:
- Cable sizing: Correctly calculated to carry the inverter’s full rated output current without voltage drop, heat generation, or derating under Singapore’s ambient temperatures
- Cable type: Singapore-approved PVC-insulated copper conductors compliant with local wiring standards and CP5 (Singapore Wiring Regulations)
- Isolation: A dedicated AC isolator switch is installed adjacent to the inverter for safe maintenance and emergency isolation
- Circuit protection: A correctly rated circuit breaker is installed at your distribution board, dedicated to the solar inverter circuit
- Earthing and bonding: Full earthing and equipotential bonding in accordance with SS 638 and CP5 — protecting against electric shock and equipment faults
- Metering: An SP Group-approved bi-directional utility meter is installed to measure both your electricity consumption and any excess solar generation exported to the grid (applicable under the Enhanced Central Intermediary Scheme, ECIS)
What this means for you: every wire and connection in your system is not just functional — it is safe, correctly rated, and signed off by a Licensed Electrical Worker (LEW) as required by the Energy Market Authority. There are no shortcuts in a Sunollo installation.
Your Rooftop Layout, Mounting & Installation Details
Your specific rooftop panel layout — including the number of panels, their orientation, tilt angle, string configuration, and structural mounting design — has been carefully engineered for your individual property by Sunollo’s technical team. These details are unique to your home and are fully documented in your contract, accessible via the Sunollo app.
To view your personalised system design and installation drawings:
- Open the Sunollo app on your mobile device
- Navigate to your contract or project folder
- Your rooftop layout diagrams, panel placement drawings, and mounting specification documents are all available for your review
Mounting for Your Roof Type
Sunollo’s installation methodology is engineered for all roof types found across Singapore’s landed properties. Whether your home has concrete interlocking tiles, traditional clay terracotta barrel tiles, or a standing seam metal roof, the mounting hardware, waterproofing method, and structural connection are each specifically selected for your roof’s material and construction.
Installation Methodology
Sunollo’s certified installation team uses a professional-grade aluminium rail mounting system engineered specifically for Singapore’s roof types and weather conditions. Every installation follows a structured methodology:
- Structural verification: Your roof’s load-bearing capacity is confirmed before any hardware is mounted
- Waterproofing integrity: All roof penetrations use stainless steel flashing kits and waterproofed bracket systems — your roof’s integrity is protected, not compromised
- Wind load design: Mounting systems are engineered to withstand Singapore’s wind load requirements with a generous safety factor
- Panel spacing: Panels are positioned with calculated gaps for thermal expansion and safe roof maintenance access
- Tilt optimisation: Tilt angles are selected to maximise your system’s annual solar energy yield at Singapore’s near-equatorial latitude (approximately 1.3°N)
- Clean installation: All cable runs are concealed and managed neatly — the finished installation is professional and unobtrusive
Full mounting drawings, anchor point specifications, and structural details are included in your contract documents on the Sunollo app.
Your System Specifications at a Glance
Your complete system specifications — including exact panel count, total system capacity (kWp), inverter model, projected annual generation (kWh/year), and financial savings projections — are documented in your signed contract accessible through the Sunollo app. As a summary of the key components that make up every Sunollo system:
- Solar Panels: AIKO ABC Technology — all back-contact, high-efficiency photovoltaic modules with 25-year warranty
- Inverter: Sungrow Radiance — 10kW, 15kW, or 20kW as specified in your contract, with 10-year warranty
- DC Cabling: UV-resistant, double-insulated, TÜV-certified solar DC cable with IP67-rated MC4 connectors — fully SS 638 compliant
- AC Cabling: Singapore-standard copper conductors, dedicated AC isolator, correctly rated circuit breaker, and SP Group bi-directional meter
- Mounting System: Engineered aluminium rail system with stainless steel waterproof flashing brackets, designed for Singapore roof loads
- Grid Connection: SP Group-approved, EMA-compliant grid-tie installation completed and signed off by a Licensed Electrical Worker (LEW)
- System Monitoring: Real-time solar generation and consumption monitoring via iSolarCloud — accessible from your smartphone at any time
The Sunollo Care Package: 10 Years of Complete Peace of Mind
Your purchase -if chosen can include the Sunollo Care Package — a comprehensive 10-year maintenance and service programme that sets Sunollo apart from every other solar company in Singapore. This is not a warranty card tucked away in a drawer. It is an active, managed service relationship that protects your investment from the moment your system goes live.
What the Sunollo Care Package Covers
- Annual system inspections: A trained Sunollo technician visits your property every year to inspect panels, cabling, inverter performance, and mounting hardware for any signs of wear or degradation
- Inverter health diagnostics: Annual inverter performance checks to identify any deviations from expected output before they escalate
- Remote performance monitoring: Sunollo’s team monitors your system proactively and will alert you if generation falls outside expected parameters — you do not need to watch the numbers yourself
- Priority service scheduling: Care Package customers receive priority booking for any fault rectification or service calls throughout the coverage period
- Regulatory documentation updates: As Singapore’s EMA and SP Group requirements evolve over time, your system’s compliance documentation is maintained and updated accordingly
Why 10 Years Matters
The first decade of operation is when your solar system pays back its capital cost and begins generating pure financial return. System performance during this critical window has an outsized impact on your total lifetime ROI. By maintaining your system proactively throughout this period, the Sunollo Care Package ensures you capture every kilowatt-hour your panels are designed to produce — rather than quietly losing output to degradation or minor faults that accumulate unnoticed.
Research consistently shows that well-maintained solar systems outperform equivalent unmaintained systems by 10–15% in annual generation. Over a decade, this difference translates directly into thousands of dollars of additional electricity savings. The Care Package pays for itself.
Supporting Documents From Your Consultation
Throughout your consultation and proposal process, Sunollo provided a comprehensive set of supporting materials to help you make a fully informed decision. These include technical product datasheets, system financial analyses, shading assessments, interconnection applications, and regulatory compliance documents.
All of these documents are stored and accessible in full through your Sunollo app contract folder. If you would like physical copies, have questions about any specific document, or need clarification on any aspect of your system, our team is always available:
- Email: support@sunollo.com
What Happens Next
Now that you have signed up, here is exactly what you can expect from the Sunollo installation process:
- Site survey confirmation: Our installation team will confirm your pre-installation site survey date to finalise any last structural or electrical checks specific to your property
- Permit and application handling: Sunollo manages all EMA interconnection applications and SP Group grid connection paperwork entirely on your behalf — you do not need to deal with the bureaucracy
- Installation day: Our certified team completes the full installation, typically within a single day for most residential systems, with minimal disruption to your household
- Commissioning and handover: Your system is tested, commissioned, and you receive a complete walkthrough of your monitoring app and system controls
- Go live: Your panels begin generating clean solar energy from day one — and so does your savings
You have made a decision that will deliver financial returns and environmental impact for the next 25 years. Your AIKO panels, Sungrow Radiance inverter, SS 638-compliant installation, and 10-year Care Package together represent the highest-quality solar system available to Singapore homeowners today. The Sunollo team is with you every step of the way. Welcome to the Sunollo family.
