Energy Audits & Building Performance Reviews
Identifying hidden inefficiencies across HVAC, lighting, controls and plant systems to reduce operational costs and carbon footprint.
Why Energy Audits Deliver ROI
Commercial buildings waste 20-40% of energy consumption through inefficient plant operation, poor controls, oversized systems, and operational drift. Energy audits systematically identify these inefficiencies and provide investment-grade recommendations with quantified savings and payback periods.
Unlike generic energy assessments, our audits are conducted by chartered engineers with deep HVAC and electrical knowledge. We test plant performance, review BMS programming, measure actual loads, and validate theoretical assumptions against real operational data. This engineering rigour ensures recommendations are achievable and ROI projections are accurate.
What We Assess
Energy Flow Mapping
Disaggregating total consumption into HVAC, lighting, small power, and process loads. Identifies where energy is consumed and which systems offer the greatest savings potential. Sub-metering data or short-term monitoring may be deployed to validate energy flows.
Baseline Consumption Analysis
Normalising energy use against degree days, occupancy, and building area to benchmark performance. Poor-performing buildings (above industry benchmarks) indicate significant efficiency opportunities. Baseline data establishes pre-improvement consumption for savings validation.
HVAC System Optimisation
Testing boiler efficiency, chiller performance, AHU airflow, and pump duty. Identifying oversized plant, poor part-load performance, simultaneous heating/cooling, and excessive outside air intake. HVAC typically represents 40-60% of building energy—optimisation delivers substantial savings.
Controls Strategy Review
Reviewing BMS programming, time schedules, temperature setpoints, and control loops. Poorly configured controls cause excessive runtime, simultaneous operation of heating/cooling, and wasteful operation during unoccupied periods. Controls optimisation often delivers 10-20% savings with zero capital cost.
Lighting & Small Power Assessment
Assessing lighting technology, control strategies (occupancy sensors, daylight harvesting), and small power consumption (plug loads, IT equipment). LED upgrades and automated controls reduce electrical demand with rapid payback.
Behavioural Energy Waste
Identifying energy waste from occupant behaviour—open windows with heating on, lights left on, excessive heating/cooling setpoint adjustments. Operational policies and staff engagement programmes can reduce consumption by 5-15% without capital investment.
Compliance & Regulatory Drivers
ESOS (Energy Savings Opportunity Scheme)
Large organisations must conduct comprehensive energy audits every four years. Non-compliance results in financial penalties and Environment Agency enforcement.
SECR (Streamlined Energy and Carbon Reporting)
Annual energy and carbon disclosure for quoted and large unquoted companies. Audits support accurate reporting and identify improvement opportunities.
ISO 50001 (Energy Management)
International standard for systematic energy management. Audits form the foundation of ISO 50001 certification and continual improvement frameworks.
EPC Regulations
Minimum Energy Efficiency Standards (MEES) require EPC B by 2030 in England & Wales. Audits identify interventions to achieve compliance.
ESG & Governance Impact
ESG Reporting: Investors require evidence of energy management capability. Energy audits demonstrate governance, provide baseline data for carbon reduction targets, and support credible net zero commitments.
Asset Value: Energy-inefficient buildings face valuation penalties, reduced tenant demand, and difficulty securing finance. Audits identify interventions to maintain asset competitiveness and comply with emerging green finance requirements.
Tenant Expectations: Corporate occupiers demand low-carbon buildings with transparent energy performance. Audits provide verifiable evidence of efficiency and support green lease negotiations.
Operational Resilience: Rising energy costs make efficiency a financial imperative. Buildings without energy management strategies face significant operating cost inflation and reduced profitability.
Related Services
Request Energy Audit
Our chartered engineers conduct ESOS-compliant energy audits for single buildings and multi-site portfolios. We provide investment-grade recommendations with ROI calculations and support implementation to ensure savings are realised. Contact us for a site-specific proposal.
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