1 MWp + 1 MWh Data Centre Solar & Battery
Thames Valley Data Centre Ltd — Slough, Berkshire | Completed 2024
Client
Thames Valley Data Centre Ltd
Location
Slough, Berkshire
System Size
1 MWp / 1 MWh BESS
Completed
2024
A high-capacity rooftop solar array paired with a 1 MWh lithium iron phosphate battery system for a hyperscale data centre. The installation offsets 55% of daytime cooling demand, slashes peak demand charges, and extends UPS bridge time from 10 minutes to over 60 minutes.
The Challenge
The facility consumed over £1.2m in electricity annually, with cooling alone accounting for 38% of the total load. The roof was densely occupied with chillers, evaporative cooling towers, and exhaust ducting. The operations team needed a resilience solution that improved PUE without introducing any power quality risk.
Our Solution
Bee Solar conducted a LiDAR drone survey and produced a 3D CAD layout that recovered 75% usable roof area by designing elevated mounting frames above HVAC plant. A 1 MWp array was paired with a 1 MWh LFP battery. The EMS isolates a 40% battery reserve for emergency backup while cycling the remaining 60% for daily peak shaving. The system was integrated via a seamless islanding inverter with sub-20ms grid-island transfer.
Project Results
Annual electricity bill reduced by £156,000 (13%)
Peak demand charges cut by 42% through battery discharge
UPS bridge time extended from 10 to 62 minutes
PUE improved from 1.38 to 1.31
Carbon footprint reduced by 312 tonnes CO2e annually
Zero power quality events in first 18 months of operation
Project Gallery
Related Service
Energy Storage
Related Projects
Articles About Data Centres
How It Works
From first call to switch-on, we make going solar simple, transparent, and stress-free.
Free Site Survey
We visit your site, assess your roof, shading, and electrical infrastructure. No obligation, no pressure — just honest data.
1–2 hoursBespoke Design & Quote
Our engineers design a system tailored to your building, usage profile, and budget. You receive a detailed proposal with ROI projections.
3–5 daysProfessional Installation
Our MCS-certified team installs your system with minimal disruption. We handle grid connection, paperwork, and commissioning.
2–6 weeksNo obligation. We typically respond within 24 hours.