SERIS supports project owners and developers in designing photovoltaic (PV) systems that maximise energy performance while meeting the highest quality and reliability standards, particularly in tropical climates where environmental conditions can be challenging. Leveraging extensive local expertise, SERIS has successfully designed and commissioned PV systems in Singapore that demonstrate exceptional long-term performance—for instance, one of its flagship systems has maintained a performance ratio (PR) of 85–90% consistently since 2011. Our project services encompass the full project lifecycle, starting with conceptual design and energy yield analysis, through detailed engineering and system optimisation, and continuing with construction oversight, testing, and commissioning (T&C). Beyond initial deployment, SERIS provides ongoing support to ensure that PV systems operate as intended, meet predicted energy outputs, and maintain long-term reliability. By combining technical expertise, tropical climate insights, and proven methodologies, SERIS delivers PV systems that not only achieve high efficiency and reliability, but also provide confidence and measurable value to owners, developers, and investors alike.
Typical PV system services offered by SERIS:
Yield Estimation
Initial estimation of annual energy yield and performance ratio (PR)*, based on the following criteria:
- Location
- Module technology
- Inverter concept
- Tilt angle
- Azimuth
Yield Assessment
Yield assessment of annual energy output and PR*, based on the proposed system design (by client) and various data for the global horizontal irradiation from several sources (by SERIS). This includes shading analysis and quantification of PV system losses
Optimized System Design for High-Performance
All “Yield assessment” services, plus:
• Optimisation of the proposed system design (mechanical, electrical up to medium voltages) for high system performance, based on existing PR as benchmarks
Full Project Partnership
All “Project due diligence” services, plus:
- Site visit prior to project closure
- Construction monitoring
- Testing & Commissioning (T&C)
- Final acceptance
- Operations and maintenance reviews
- Analytical on-site monitoring with calibrated equipment
Optional:
• Sample testing of PV modules
*The performance ratio, PR, is the ratio of actual AC energy yield of a PV system over the theoretically expected DC energy yield. The latter is based on in-plane irradiance measurements as well as the module’s indoor power output measured under standard test conditions (STC).
Top row: SERIS engineers performing third-party verifications during a project.
Bottom row: Rooftop PV installations on a metal roof and installed over water tanks
For further information, please contact:
Eddy BLOKKEN
Head, PV Quality Assurance Group
Solar Energy Systems Cluster