Investment Grade Energy Audits; Unlock Energy Savings and Strategic Value

Maximise efficiency, reduce energy spend, and build long-term resilience with Inteb’s Investment Grade Energy Audits. Our audits don’t just tick compliance boxes — they deliver deep-dive analysis, ROI-focused recommendations, and a clear investment roadmap to help decarbonise your estate, reduce operational risk, and align with your Net Zero goals.

Why Energy Audits Matter

Investment in energy efficiency is no longer optional. With rising energy bills, tightening energy efficiency regulations, and increasing pressure to meet ESG targets, a professional-grade energy audit is one of the smartest steps your organisation can take.

Inteb’s audits are conducted to BS EN 16247 standards, ensuring your report meets the highest quality benchmarks for accuracy, reliability, and completeness. Our clients include corporate HQ’s, property owners, facilities managers, NHS estate teams, education trusts, manufacturers, and public sector bodies; all seeking to identify areas for improvement and reduce operating costs.

In today’s economic climate, energy efficiency improvements represent not only a cost-saving opportunity but also a strategic investment. With the volatility of the energy market, a clear understanding of where and how energy is being used inefficiently is essential to reducing exposure and planning long-term infrastructure upgrades. An investment in energy not only supports short-term savings, but helps drive the kind of energy performance gains that future-proof assets.

Engineer conducting an Energy audit by inspecting industrial control panels and recording data.

Conducting a comprehensive Energy audit to assess system efficiency and reduce operational costs.

Business professional reviewing data on a tablet as part of an Investment Grade Energy audit.

An Investment Grade Energy audit delivers detailed insights to inform strategic energy-saving investments.

What Is an Investment Grade Energy Audit?

An investment grade energy audit (IGEA) is a comprehensive evaluation of energy performance across a building or portfolio. Unlike basic assessments, IGEAs provide:

Detailed consumption analysis
Performance benchmarking
ROI analysis of efficiency measures
Bespoke energy savings recommendations
Implementation roadmaps and investment prioritisation

These audits are designed for investors, property professionals, asset managers, and estates teams seeking defensible, data-backed investment decisions. Our methodology is aligned with best practices for investment planning, energy strategy, and facilities management.

Reports are structured to support:

Internal capital planning and budgeting
Grant or finance applications (PSDS, Salix, green loans)
EPC improvement strategies
Asset value enhancement and exit preparation

Our Energy Audit Process

Inteb’s structured audit process ensures no opportunity is missed:

Initial Consultation – We assess your goals, budget, building type, and compliance obligations.
Site Survey & Data Collection – We gather utility data, BMS insights, asset performance, and operating schedules.
Consumption Analysis – We identify inefficiencies and patterns in your energy use.
Opportunity Identification – HVAC systems, lighting, air conditioning systems, insulation, and controls are analysed for savings.
ROI Modelling – Each recommended measure includes a financial payback and potential return on investment.
Reporting & Roadmap – You receive a detailed report, aligned with investment, compliance, and carbon reduction goals.
Stakeholder Review & Sign-Off – We present findings in plain English and technical terms to both board-level and operational teams.

Our audit framework is collaborative, practical, and transparent.

Team reviewing charts and financial data during a detailed Energy audit process.

Collaborative review of performance metrics during the Energy audit process for accurate efficiency planning.

Close-up of a person analysing graphs and charts during an Energy audit process.

Detailed data analysis highlighting key focus areas of an Energy audit.

Key Audit Areas

Our investment-grade audits examine every relevant system:

Utility data analysis (half-hourly, monthly, or sub-metered) to identify trends and anomalies
Engineering-grade calculations to model energy savings from each proposed measure – Heating, ventilation and air conditioning (HVAC systems)
Lighting systems and controls
Building fabric and insulation
BMS and building automation systems
Air conditioning system condition and control
Ventilation and air conditioning load profiles
Heat pumps and heating systems
Occupancy patterns and tenant usage
Metering and submetering infrastructure
Renewable energy generation potential

Each building is mapped in terms of energy flows, control logic, and mechanical resilience.

Tailored to Your Organisation’s Needs

No two buildings or organisations are the same. Our audits are customised for:

NHS and public sector buildings
Corporate Headquarters and estates
Commercial property landlords
Industrial and manufacturing facilities
Education providers and trusts
Large multi-site estates

We understand the unique operating constraints, legislative drivers, and technical challenges in each sector. This enables our reports to offer guidance that fits your property type, internal stakeholders, and financial model.

Team of professionals discussing tailored Energy audit solutions in a modern office.

Tailored Energy audit planning session designed around your organisation’s specific needs.

Benefits of Investment Grade Energy Audits

Detailed Consumption Analysis

Understand exactly where energy is used and wasted.

Targeted Cost Reduction

Focus on areas with highest energy waste and potential savings.

Regulatory Compliance

Meet or exceed energy efficiency regulations and avoid penalties.

ROI-Driven Decisions

Prioritise actions that deliver the best return on investment.

Energy Efficiency Improvements

From short-term tweaks to long-term upgrades.

Informed Investment Decisions

Strengthen internal business cases for efficiency investment.

Lower Carbon Footprint

Reduce emissions and enhance your sustainability reporting.

Improved EPC Ratings

Make progress towards net zero and funding eligibility.

Portfolio-Wide Application

Consistent analysis to apply across entire property portfolios.

Visibility for Tenants & Investors

Support green lease initiatives and tenant engagement.

Energy audit data analysis showing charts and graphs with magnifying glass.

Commonly identified savings opportunities revealed through a comprehensive Energy audit.

Commonly Identified Opportunities

Our audit outputs frequently identify:

LED lighting retrofits with <2 year payback
Optimisation of air conditioning system controls
Rebalancing of heating and cooling loads
Heat pump feasibility for gas-to-electric transitions
Improved insulation in poorly performing zones
Night-setback and smart control strategies
Faulty or oversized HVAC units driving waste
Metering gaps and manual billing exposure
Opportunity to participate in demand-side response markets

Commonly Identified Energy-Saving Opportunities

Lighting
LED upgrades, lighting controls (PIR, daylight sensors, timers), and occupancy-based zoning.

HVAC Systems
BMS optimisation, setpoint and zoning control, boiler upgrades, heat pump feasibility, VSDs, and demand-based ventilation.

Controls & Automation
Smart thermostats, BMS/BEMS upgrades, energy monitoring platforms, and predictive maintenance.

Building Fabric
Insulation improvements, draught-proofing, pipe lagging, and glazing enhancements.

Office & IT
PC/server power management, cooling efficiency, and smart plug load control.

Electrical Systems
Power factor correction, voltage optimisation, and efficient transformers or switchgear.

Hot Water
Timed controls, insulation, and replacement of outdated water heating systems.

Renewables & On-Site Generation
Solar PV, battery storage, low-carbon CHP alternatives, and solar thermal (site dependent).

Operational & Behavioural
Staff training, runtime reviews, revised maintenance, and load shifting to reduce peak charges.

Coins and data graphs under a magnifying glass symbolising cost analysis during an Energy audit.

Unlock financial savings through a data-driven Energy audit.

Close-up of professionals reviewing charts and graphs during an Energy audit consultation.

Inform strategic decisions with insights from a professional Energy audit.

Supporting Your Investment Strategy

Energy is a financial lever. Our audits support decisions around:

CapEx planning for efficiency investment
Utility contract renewals and performance baselining
Tendering for upgrades or maintenance work
ESG disclosures and carbon reporting
Business case development for board-level decisions
Supplier selection and procurement benchmarking
Improving building EPC ratings to meet investor standards

When viewed through the lens of strategic investment, energy audits inform smarter, more resilient portfolios.

Why Choose Inteb for Energy Audits?

Compliant with BS EN 16247 and ESOS-ready
Highly experienced energy managers, surveyors and engineers
Transparent, easy-to-read reports
Practical focus on implementation, not just assessment
Proven results across commercial and public sector estates
Integration with TM44, SECR, EPC, and net zero planning
Support for FM teams, asset managers, and procurement leads

We bridge technical, financial, and compliance perspectives in a way few other providers can.

Business professionals evaluating a building model and performance data as part of an Energy audit.

Why choose Inteb for your Energy audit? Comprehensive insight, expert guidance, and proven savings.

A professional presents Energy audit findings to a team during a boardroom meeting.

Frequently asked questions answered — understanding your Energy audit.

Frequently Asked Questions

Q: How long does an investment-grade audit take?
A: From 2–6 weeks depending on complexity and number of sites. We provide a timeline upfront and work around your operational hours.

Q: Can audits cover multiple buildings?
A: Yes – we support portfolios of all sizes, from single properties to national estates.

Q: Will I receive actionable recommendations?

A: Absolutely. Every audit we deliver includes clearly costed, ROI-focused recommendations with priority rankings and practical next steps. Before we begin, we meet with you to fully understand your estate, past work, and existing strategies; so we build on what’s already in place rather than starting from scratch. Our goal is always to add value, minimise unnecessary costs, and ensure every recommendation is realistic and deliverable.

Q: Can you help with funding applications?
A: Yes; our reports support PSDS, Salix, and commercial finance applications.

Q: How does this help improve my EPC or reduce carbon?
A: Our audits identify EPC-impacting factors and quantify Scope 1 & 2 emissions reductions linked to each recommended measure.

Get Started; Book an Investment Grade Energy Audit

Turn your energy data into cost savings, compliance, and investment insight. Inteb’s BS EN 16247-compliant audits give you more than a report; they give you a roadmap to lower energy bills and better decisions.

Request an Energy Audit Consultation

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