Why call centres and contact hubs need solar PV in 2026

Dedicated contact centre buildings — large open floor plates, often outsourced (Capita, Concentrix, Teleperformance) or insourced (utility companies, banks, insurers). Typically suburban or business-park locations.

Client RFPs increasingly require supplier Scope 2 disclosure. Outsourced contact centre margins thin enough that solar savings (£100k+/year typical) materially affect commercial viability.

Where call centres and contact hubs concentrate in the UK

UK call centres and contact hubs cluster in: Manchester Trafford, Glasgow Cambuslang, Cardiff, Belfast, Leeds, Liverpool. Our installation footprint covers every major UK commercial centre, and we routinely work with sector-specific property profiles — flat-roof urban offices, heritage conversions, Grade A modern towers, business-park campuses.

Typical project profile for call centres and contact hubs

Most call centres and contact hubs solar projects share a similar economic and technical profile. System sizing typically lands at 200-1000 kW typical — driven by the building's half-hourly load shape rather than roof area alone. Capex falls in the £180k-£900k range depending on roof type, electrical infrastructure age, and inverter spec.

Self-consumption ratios for call centres and contact hubs typically sit between 75% and 88% without battery storage, reflecting daytime occupancy patterns and high HVAC/IT baseload. Battery storage becomes NPV-positive above 200 kWp on most sites, lifting self-consumption to 90%+ and unlocking DUoS shifting plus capacity market revenue on larger systems.

EPC uplift from solar typically lands at 6-10 SAP points — comfortably enough to lift a C-rated building into B and secure MEES 2030 compliance. We model EPC impact specifically for your building under current SAP 10.2 methodology in every proposal.

What we deliver

For every call centres and contact hubs project we structure a complete service: free half-hourly meter data feasibility study, fixed-price proposal across cash / asset finance / operating lease / PPA, in-house planning route assessment and management, DNO G99 grid connection application, MCS-certified install, commissioning to IEC 62446 standards, and a Scope 2 Disclosure Pack covering SECR / TCFD / CDP / SBTi as applicable.

Lead times: 7 working days to proposal, 6-9 months from acceptance to commissioning. We are MCS-certified, NICEIC approved, RECC members, and TrustMark licensed.

Energy profile of a call centre

Call centres and contact hubs are among the most energy-intensive office building types in the UK, typically recording 200-270 kWh/m²/year. High agent density (one workstation per 6-8 m² of floor area), continuous telephony and CRM server infrastructure, and large-scale HVAC required to remove the heat generated by dense human and electronic occupancy all push consumption well above general office benchmarks.

Crucially for solar economics, most contact centres operate on extended or 24/7 schedules. Customer-facing operations often run 07:00-22:00; technical support and utility contact centres frequently run round the clock. This translates to an exceptionally high baseload — typically 50-65% of peak demand runs continuously. Self-consumption ratios of 88-94% without battery storage are realistic for extended-hours operations, making call centres one of the highest self-consumption categories in the commercial solar market.

The combination of high absolute consumption and high self-consumption ratio creates outstanding solar economics: every kilowatt-hour generated is almost entirely consumed on site at full retail tariff value (24-27p/kWh) rather than exported at SEG rates (8-12p/kWh). For a 400 kWp system generating 380,000 kWh/year with 91% self-consumption, this means £86,600 in avoided grid purchases against £3,400 in SEG export income — a combined annual benefit of £90,000.

Case study: 800-seat outsourced contact centre, Cardiff

A major BPO operator running an 800-seat contact centre at a purpose-built 8,400 m² facility in Cardiff Bay (EPC D) commissioned a 420 kWp system across two flat-roof sections in Q1 2025. Key outputs:

Annual generation: 390,600 kWh (Cardiff irradiance: 930 kWh/kWp/yr)
Self-consumption: 93% (363,300 kWh) — driven by 20:00-08:00 shift coverage and 24/7 server room
Grid export: 27,300 kWh, earning £3,000/yr
Electricity bill saving: £90,500/yr (at blended 24.9p/kWh)
Total annual benefit: £93,500
System cost: £378,000 (£0.90/Wp)
Simple payback: 4.0 years; 3.0 years post-Full Expensing
EPC improvement: D → C (9 SAP points); planned LED refit will reach EPC B
CO₂ saved: 78 tonnes/year

The BPO operator included the solar project in its client-facing ESG scorecard, used by three major utility company clients when assessing supplier sustainability credentials in annual procurement reviews. The £93,500 annual saving represented 1.4% of the facility's total operating cost — a material margin improvement on a business where net margins are typically 8-12%.

MEES 2030 implications for call centres

Contact centres frequently occupy 1990s-2000s purpose-built or converted industrial/retail units, many of which have never been upgraded for energy efficiency. EPC D and E ratings are common in this stock. The MEES 2030 EPC B floor creates acute pressure: a D-rated contact centre with 10 years remaining on its lease faces either compliance works or lease non-renewal risk.

Solar alone typically delivers 8-12 SAP points on a large single-storey call centre building — sufficient to move from D to C in most cases. Reaching EPC B requires solar plus one or two complementary measures: LED refit (3-5 points), HVAC controls (2-4 points), or roof insulation uplift (4-8 points on pre-2000 buildings). We model the full pathway to EPC B in every proposal, identifying the most cost-effective combination.

For multi-site operators (Capita, Concentrix, Teleperformance), we offer portfolio feasibility assessments covering all UK locations in a single study, with a ranked list of sites by compliance risk, solar potential, and combined NPV — enabling a structured multi-site programme rather than piecemeal reactive installs.

Finance options for call centres

Full Expensing / AIA (cash purchase) is optimal for large profitable BPO operators. A 420 kWp system at £378,000 generates £94,500 first-year CT relief at 25%, reducing effective net cost to £283,500 and payback to 3.0 years. For operators with multiple sites, the annual AIA limit of £1m accommodates multi-site programmes in a single tax year.

Asset finance (hire purchase) is widely used in the sector, particularly by mid-size operators managing cash flow against thin contract margins. Monthly payments on a 420 kWp system over 5 years at current rates fall in the £5,800-£7,400 range — covered many times over by the monthly electricity saving of approximately £7,500.

PPA (Power Purchase Agreement) suits large multi-site programmes where the operator wants to roll out solar across 10+ sites with zero capital spend. A PPA aggregated across a portfolio of buildings allows the operator to negotiate a single fixed tariff rate (typically 10-13p/kWh) for all sites, with the SPV developer financing and installing each system. Particularly effective where the operator holds leases rather than owns buildings, as the landlord grants the roof licence to the SPV.

IETF (Industrial Energy Transformation Fund) — call centres meeting the IETF eligibility threshold (>1 GWh/year consumption) can apply for IETF Phase 3 grants covering up to 25-30% of qualifying solar and storage capex. For an 800-seat contact centre consuming 2.5 GWh/year, this potentially offsets £90,000-£113,000 of a £378,000 system cost. IETF Phase 3 is open for applications until December 2026.

Frequently asked questions

Our contact centre operates 24/7 — will solar still save money when we generate during night hours?: Solar only generates during daylight hours, so a 24/7 operation will still draw grid power overnight. However, the daytime generation (typically 06:00-20:00 in UK summer) offsets the highest-cost grid purchases and maximises self-consumption during peak demand periods. A battery storage system (typically 200-400 kWh for a 420 kWp array) can shift some of the evening and early-morning surplus into overnight consumption, further improving economics. We model battery NPV alongside the PV case in every proposal.
Can solar be installed without shutting down operations?: Yes. We design installation programmes around your operational schedule, typically completing structural, roofing, and mounting work during building maintenance windows or using split-shift roofing teams. Grid connection and final commissioning require a brief planned outage (typically 2-4 hours for a large system) — we coordinate this with your facilities and IT teams to minimise operational impact. MCS commissioning to IEC 62446 standards is completed before any operational handover.
Does the system need planning permission?: Most flat-roof commercial solar installations under 1 MWp benefit from permitted development rights under Schedule 2 Part 14 of the GPDO 2015, provided the array does not exceed the highest part of the roof and the building is not in a listed or designated area. We carry out a full planning assessment as part of the feasibility study and manage any required prior approval or full planning application if needed.
How does solar affect our SECR energy disclosure?: Contact centres above the SECR threshold (250+ employees or £36m+ turnover) must disclose energy consumption and Scope 1-2 emissions annually. Self-consumed solar generation reduces your market-based Scope 2 figure to zero for that volume of electricity. We provide a SECR-formatted Scope 2 Disclosure Pack on commissioning. For outsourced operators, this can also be included in your Scope 3 Category 8 disclosures to client companies who request supplier emissions data.
Is the IETF grant available to outsourced BPO operators, or only to the building owner?: IETF grants are available to the entity that bears the energy cost — typically the operator under a utilities-inclusive contract, or the occupier under a standard commercial lease. Owner-occupiers can apply directly. Where the building owner and operator are different entities, the grant can be structured to benefit the operator through a shared-savings arrangement. We have experience structuring IETF applications for multi-party lease arrangements.

Solar panels for call centres and contact hubs