Pure Offices provide a wide range of private office spaces to rent in Aylesbury, offering high-standard workplaces for organisations of all sizes. Their buildings are designed to prioritise flexibility and well-being, with unfurnished office suites enabling tenants to shape the space to their needs.
Project Requirement
Spectra was engaged to review Pure Offices Aylesbury’s energy consumption and to design and install a new Solar PV system to supplement their existing arrays.
The client provided the following key data:
- Annual electricity consumption: approx. 62,000 kWh
- Estimated on-site solar PV utilisation: 78% of total production
- Roof pitch: 20°
- Electricity cost: approx. £0.40 per kWh
The objective was to deliver a high-performing renewable energy system that reduced grid dependency, provided strong ROI, and supported Pure Offices’ Net Zero ambitions.
Spectra Energy Group Delivery
Spectra Energy Group acted as Principal Contractor, delivering the project during normal working hours and providing:
- Full Principal Contractor (PC) duties
- Construction Phase Plan
- Structural roof survey
- Full roof edge protection
- Controlled access/egress via the north end of the building to minimise disruption
This was delivered under our full Design & Build (D&B) responsibility.
Design & System Selection
Spectra Solar, fully MCS accredited, designed a system rated under 50 kW, enabling us to provide full MCS certification upon completion.
Selected System: SolarEdge
- 96 × 500 W panels
- 1 × SolarEdge 33.3 kW inverter
- 48 × SolarEdge optimisers (2 panels per optimiser)
Key Design Considerations
- Initial design survey and feasibility assessment
- Panel-level monitoring via SolarEdge
- Optimised performance to mitigate shading losses
- 12-year standard inverter warranty
- 25-year optimiser warranty
- Fast manufacturer RMA process
- Built-in advanced safety features
Financial Outcome
- Return on Investment (ROI): 5.2 years
Installation Works Although the project was non-notifiable, Spectra delivered all works to full health & safety standards, including:
- Construction Phase Plan
- SSOW, RAMS, insurance certificates and site safety documentation
- Programme of works outlining all site activities, start/finish dates, commissioning and completion
Structural Assessment A structural engineer was appointed to assess the roof structure and confirm its suitability for the proposed system and containment. The system was approved, and certification was issued for works to commence. Site Setup & Execution
- On-site SMSTS-trained project engineer
- Installation of Heras fencing and a Haki access tower
- Safety signage to protect staff, clients, and the public
- All works delivered within 2 weeks, followed by full site handover
End Result & Client Feedback
Pure Offices were delighted with the efficient and high-quality delivery of the project. The new Solar PV system is performing as designed and serves as a strong addition to the building’s existing solar capacity.
This installation plays a key role in supporting Pure Offices’ Net Zero objectives, and the client expressed enthusiasm for working with Spectra on future sustainability projects.
Project Details
- Category: Solar
- Location: Pure Offices Midshires House Smeaton Close Aylesbury HP19 8HL