241.20 kWp Solar PV Design for a Visitor Attraction in Somerset
PVSol rooftop solar PV layout for a 241.20 kWp system designed across the central building group of a visitor attraction in Somerset.
Nortcel was asked to prepare a concept advanced solar PV design for the central building group at a visitor attraction in Somerset.
The project required a practical rooftop PV model using the available roof areas, existing half-hourly demand data and site-specific consumption behaviour.
The challenge
The wider site included multiple electricity supplies and several possible PV locations. The design needed to focus on the main building group first, while keeping other areas separate for future assessment.
The roof layout also needed to work around multiple roof orientations, existing roof features and practical module zones rather than simply maximising panel count.
The solution
Nortcel developed a 241.20 kWp roof-mounted solar PV design across several roof areas.
The model used 536 Qcells modules and 4 SolaX inverters. The system was assessed against the central supply’s half-hourly consumption profile, allowing the design to be tested against real site demand rather than a generic estimate.
Project results
The PVSol simulation estimated annual solar generation of 221,212 kWh / year.
The model showed 149,608 kWh / year used onsite and 71,604 kWh / year exported to the grid. This resulted in 67.6% own power consumption and 32.6% self-sufficiency.
Estimated avoided emissions were 39,126 kg CO₂ / year.
Energy profile
Annual energy profile showing onsite PV use, grid export and central building consumption coverage for the 241.20 kWp rooftop solar PV design.
The energy profile shows how the annual PV generation is split between onsite use and grid export. It also shows how much of the central building group’s electricity demand is covered by rooftop solar PV compared with grid supply.
Design outcome
The design provided a clear technical basis for reviewing the central PV opportunity separately from other site areas.
It helped define the usable roof zones, generation potential, expected onsite use and the level of grid import reduction achievable from the main building group.
Key figures
System size: 241.20 kWp
Annual generation: 221,212 kWh / year
Modelled annual consumption: 459,615 kWh / year
Own power consumption: 67.6%
Self-sufficiency: 32.6%
Grid export: 71,604 kWh / year
CO₂ avoided: 39,126 kg / year
PV modules: 536 Qcells modules
Inverters: 4 SolaX inverters
Battery storage: Not included
Design stage: Concept advanced rooftop solar PV design
