For the past decade, corporate net zero strategies have largely been defined by ambition. Targets were set, pledges were made, and renewable energy procurement became the default route for many.
However, something has recently shifted as the latest decarbonisation data shows that credibility is no longer about what organisations say they will do. It’s about what delivers measurable results today and it has become increasingly clear that energy efficiency in a net zero strategy can provide that.
Closing the Gap
There’s no shortage of climate commitments amongst organisations both across the private and public sector. In fact, according to a report by PwC’s Third Annual State of Decarbonization Report, 82% of businesses have held steady or accelerated their decarbonisation timelines, even in a challenging economic and policy environment.
However, targets don’t mean anything if organisations are not working through their Carbon Reduction Plans effectively.
Businesses are becoming more disciplined, focusing less on headline targets and more on what actually works. This shift is proving that reducing energy demand is often the fastest, lowest-risk and most cost-effective way to cut emissions.
By returning to the basics of energy efficiency, it can support businesses in reducing emissions and support their bottom line.
The Economics Have Changed
Energy efficiency used to be framed as a “quick win”, initiatives such as LED upgrades, building tweaks, incremental savings. Now, businesses are discovering that energy efficiency can play a more strategic role in energy cost reduction and decarbonisation.
Rising energy prices, supplier volatility and grid constraints have fundamentally changed the equation. Electricity costs have increased by as much as 7%–25% in recent years, putting sustained pressure on operating margins. At the same time, reliability is no longer guaranteed, with outages and supply shocks becoming more common.
Embracing energy efficiency measures can counteract the price volatility many businesses are experiencing. By reducing the amount of energy an organisation unintentionally wastes, businesses can carry out the same tasks using less energy.
That is why organisations are doubling down on demand reduction. Not because it sounds good in a sustainability report, but because it directly improves financial performance. Energy efficiency cuts costs, reduces exposure to price volatility, and strengthens operational resilience.
Doing More With Less Capital
Many organisations do not have a basic understanding of the energy efficiency improvements they can make, meaning there is untapped potential within their estate to make these improvements.
One of the more surprising findings from the report is that companies are spending less on decarbonisation overall yet achieving better results. This is by prioritising high-return actions, particularly those that reduce energy use and improve energy performance data.
Instead of chasing complex or investing in heavy projects, organisations are focusing on optimisation. Making smarter buildings, better data, improved processes. The result is a more efficient pathway to emissions reduction, without the same level of financial risk.
This is a critical shift. It suggests that credible net zero strategies are no longer defined by scale of investment, but by quality data and managing and reporting that data effectively.
Is Energy a Business Risk?
Another reason energy efficiency has moved centre stage is that energy itself has become a strategic risk.
Geopolitical issues, infrastructure constraints and rising demand (especially from AI and data centres) are putting unprecedented strain on energy systems. Businesses are responding by rethinking energy as a vulnerability. Meaning energy efficiency higher up the agenda as part of a broader business energy strategy.
Reducing demand is one of the few ways organisations can fully control the amount they use. Unlike renewable procurement or grid decarbonisation, which are both increasingly complex and competitive, efficiency delivers immediate, internal impact.
A More Credible Path to Net Zero
The organisations making real progress on decarbonisation are not necessarily the ones with the boldest commitments. Instead, they are the ones making pragmatic, economically sound decisions. Which increasingly starts with energy.
This means investing in efficiency beyond the basics; using data to identify waste, targeting high-impact assets, and embedding energy performance into operational strategy. By treating energy management as a core business function, organisations can embed a net zero strategy that prioritises energy efficiency and carbon reduction plans.
The Bottom Line
Despite what you may be hearing, net zero has not lost momentum. However, businesses are reviewing and pivoting how they are planning and executing their carbon reduction plans. Energy efficiency sits at the heart of that shift. By going back to the basics of reducing energy usage and understanding the data, organisations will impact their decarbonisation in unexpected ways.
For more information around energy efficiency, read our Practical Guide to Energy Efficiency for UK Organisations