Project Overview
Genfit completed a rooftop Solar PV installation at Harpenden Memorial Hospital, delivered for Central London Community Healthcare NHS Trust (CLCH).
The project involved the installation of a new Solar PV system across the hospital roof, designed to generate clean renewable electricity directly on site and help reduce the building’s reliance on grid-supplied energy.
By making use of available roof space, the installation provides the hospital with a long-term renewable energy asset while supporting CLCH’s wider sustainability and carbon reduction objectives.
The completed system will help lower carbon emissions, improve on-site energy generation and contribute towards a more sustainable healthcare estate.
Project Details
System Design & Technology
The installation utilises a SolarEdge commercial PV system, designed to provide high-efficiency energy conversion, module-level optimisation and detailed system monitoring.
1 × SolarEdge SE50K Synergy Manager inverter provides 50 kW maximum AC power and efficient three-phase conversion across the system.
75 × SolarEdge S1000 power optimisers help maximise module performance while providing detailed module-level monitoring.
147 DMEGC solar panels make up the 72.86 kWp system, including 131 × 500W modules and 16 × 460W modules.
Advanced SolarEdge monitoring and safety features provide real-time system visibility, optimiser-level performance data and enhanced DC safety.
The system is designed to generate approximately 67.32 MWh of renewable electricity each year, saving around 13 tonnes of CO₂ annually.
Hengdian Group DMEGC Magnetic Co. Ltd. Solar Modules × 147
131 × DM500M10RT-B60HBT
16 × DM460G12RT-B48HBT
- High-Efficiency Modules: Designed for strong commercial Solar PV performance.
- Bifacial / Advanced Cell Technology: Helps maximise energy generation across the array.
- Excellent Low-Light Performance: Maintains generation in weaker light conditions.
- Low Temperature Coefficient: Helps reduce performance losses in warmer weather.
- Durable Construction: Built for long-term rooftop use and demanding environments.
- Long-Term Warranty: Backed by comprehensive product and performance warranties.
- Certified Quality: Manufactured to recognised international standards.
Module Specifications:
- Total Modules: 147
- 500W Modules: 131
- 460W Modules: 16
- Total Installed DC Power: 72.86 kWp
SolarEdge SE50K Synergy Manager × 1
- 50kW Three-Phase Inverter: Designed for commercial Solar PV systems.
- Synergy Technology: Provides flexible, efficient system operation.
- High Efficiency: Converts DC power into usable AC electricity.
- Advanced Monitoring: Works with SolarEdge optimisers for detailed performance data.
- Integrated Safety: Includes DC safety switch and surge protection.
- Commercial Design: Built for larger rooftop Solar PV installations.
Inverter Specifications:
- Rated AC Power: 50kW
- Phase: Three-phase
- Technology: SolarEdge Synergy
- Quantity: 1
Solaredge S1000 x 75
- Manufacturer’s Warranty: 25 years
- Specifically designed to work with SolarEdge Commercial inverters
- Mitigates all types of module mismatch loss, from manufacturing tolerance to partial shading
- Faster installations with simplified cable management and easy assembly
using a single bolt - Detects abnormal PV connector behavior, preventing potential safety issues
- Module-level voltage shutdown for installer and firefighter safety
- Flexible system design for maximum space utilization
- Compatible with bifacial PV modules
- Superior efficiency (99.5%)
Project Planning & Preparation
Delivering the Solar PV installation at Harpenden Memorial Hospital required careful planning, coordination and safety management to complete the works within an active healthcare environment while minimising disruption to day-to-day operations.
Planning & Safety
Works planned around a live healthcare site
Detailed RAMS and site coordination
Careful programme management
Safety Management
Safe roof access arrangements
Working-at-height controls
Ongoing site safety management
Engineering
Structural and rooftop layout assessment
SolarEdge system design
Electrical and grid connection coordination
Delivery
Materials and access carefully coordinated
Minimal disruption to hospital operations
Full testing and commissioning completed
Environmental Impact
- 13 Tonnes CO₂ Emissions Avoided
- 598 Equivalent Environmental Benefit
Installation & Description of Works
A 72.86 kWp rooftop Solar PV system designed, installed and commissioned at Harpenden Memorial Hospital for CLCH, with the works carefully coordinated around a live healthcare environment.
Solar PV Array
147 DMEGC solar modules installed across the hospital roof to generate clean renewable electricity on site.
Electrical Infrastructure
1 × SolarEdge SE50K Synergy Manager installed alongside new DC/AC cabling and associated electrical connections.
Monitoring & Safety
75 × SolarEdge S1000 power optimisers provide detailed system monitoring, module-level optimisation and enhanced safety.
Testing & Compliance
Full testing and commissioning completed in line with BS 7671, SolarEdge, DNO and relevant site requirements.
Delivering the Solar PV installation at Harpenden Memorial Hospital was a great project for the team. Working within a live healthcare environment meant careful planning and coordination were essential throughout. The finished system will help the site generate more of its own renewable electricity, reduce carbon emissions and support CLCH’s wider sustainability goals.
– Dave Houston
Director, Genfit
