A Practical Guide to Energy Efficiency for UK Organisations

Energy efficiency is no longer a “quick win” on the sidelines of sustainability strategy. It can be the starting point for cost control, risk reduction, and decarbonisation, driven by more strategic energy management practices.

PwC’s Third Annual State of Decarbonization Report shows that organisations are becoming more disciplined when prioritising their energy management strategies because they deliver measurable returns while also supporting carbon reduction and improved energy performance within the business.

This guide outlines how UK organisations can use the information in the PWC report to take a practical, structured approach to improving their own energy efficiency and energy management.

This short video provides an overview of the key themes covered in this guide, explaining how energy efficiency fits within wider energy management, cost control and Net Zero strategies for UK organisations.

Start with Energy Demand Reduction

The report highlights that leading organisations are reducing energy use before investing in supply-side solutions or renewable energy procurement.

This shift reflects the growing importance of energy efficiency as a core energy management strategy, particularly in response to rising costs. Energy prices have increased by 7%–25%, making energy cost management and efficiency critical for maintaining margins.

Practical energy-saving initiatives to support this include:

  • Conducting commercial energy audits to identify inefficiencies
  • Targeting high-consumption assets first through better energy monitoring
  • Focusing on quick wins, such as LED upgrades, HVAC optimisation, and improved building controls and scheduling systems.
An infographic demonstrating Practical energy-saving initiatives, including conducing an energy audit, targeting high consumption and focusing on quick wins.

Prioritise High-Return Energy Efficiency Projects

Organisations are moving away from broad initiatives and toward targeted, high-impact energy efficiency projects that improve performance and deliver ROI.

This includes focusing on building optimisation, process efficiency improvements in industrial operations and waste heat recovery and load optimisation.

Energy efficiency projects like these typically require little investment compare to energy supply solutions, while delivering immediate energy cost savings, improved energy performance, and measurable emissions reductions.

Implement Energy Management Systems and Data Insights

The PwC report highlights that leading organisations use energy management systems, smart technologies, and data to identify inefficiencies and optimise performance. By deploying energy monitoring and targeting systems, using real-time data to track consumption, benchmarking performance across sites and introducing automated alerts for anomalies.

Organisations can start on this by tracking their half-hourly energy data analysis, and their energy usage, combined with sub-metering for large sites or processes. These approaches provide the visibility needed for proactive energy management and continuous improvement.

Remember, you can’t manage what you don’t measure. Data is the foundation of both energy efficiency improvements and long-term energy strategy.

Align Energy Strategy with Financial Planning

One of the most important changes highlighted by PwC is how organisations are treating energy efficiency as a financial decision, not just a sustainability one.

Leading organisations are integrating energy management considerations into capital planning and asset management. Instead of replacing equipment on a like-for-like basis, they are using natural replacement cycles as an opportunity to improve energy efficiency and reduce long-term costs.

This approach helps avoid unnecessary upfront investment while still delivering meaningful improvements over time.

Build Energy Resilience into Operations

Energy is now a strategic risk, not just an operational cost. Organisations can improve energy resilience by:

  • Identifying critical sites and loads
  • Shifting demand away from peak times
  • Reviewing on-site generation or storage options
  • Stress-testing operations against supply disruption.

With grid reliability risks increasing and energy demand rising, prioritising energy resilience into your energy management strategy is essential to an organisation’s operations.

Use Digital Tools and AI to Accelerate Efficiency

The report shows that while 60% of organisations are using AI, very few are achieving measurable impact so far. Organisations that use software to identify inefficiencies, automate data collection and reporting analysis will find that their data is accurate and manageable.

Integrate Energy Efficiency into Your Net Zero Strategy

The pathway to decarbonising your energy supply is becoming more complex due to policy changes and increasing competition for clean energy.

This makes energy efficiency and demand reduction even more important. By lowering overall energy consumption, organisations can reduce the scale of renewable energy required, simplify energy procurement strategies, and accelerate progress towards Scope 1 and Scope 2 emissions targets.

Energy efficiency becomes the foundation of a credible net zero strategy, not a supporting measure.

Key Takeaways for UK Organisations

  • Energy efficiency is the fastest route to measurable progress
  • Focus on energy demand reduction before supply solutions
  • Invest in data, systems, and optimisation
  • Align energy strategy with financial and operational goals
  • Treat energy as a strategic risk and opportunity.

The organisations leading on this are using energy efficiency as a tool to improve profitability, resilience, and long-term commercial success.

Understand why energy efficiency is leading corporate decarbonisation in our Market Briefing.

Written By: Tim Holman – Head of Consultancy, MSc, MEng, CEng, MEI
Tim leads TEAM Energy’s consultancy practice and has extensive experience supporting organisations through ESOS compliance, audits and regulatory review.

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