Energy efficiency for SMEs in construction: practical steps for big impact

For small and medium-sized enterprises (SMEs) in the construction industry, energy efficiency isn’t just about environmental responsibility, it’s about staying competitive, cutting costs, and building resilience. With rising energy prices and increasing pressure to meet sustainability targets, even small changes can lead to significant savings.

Whether you’re managing a small site or working on a local build, there are practical, cost-effective ways to help reduce energy use without compromising productivity.

Power Smarter, Not Harder

Diesel generators are often a go-to solution for powering construction sites, especially before a  Temporary Building Supply (TBS) is installed – but diesel is expensive and carbon heavy. SMEs can benefit from switching to hybrid generators, which combine battery packs with fuel generation. These systems reduce fuel use and can even be charged using renewable sources like solar or wind, ideal for remote or off-grid locations. Installing a TBS allows your site to draw electricity from the grid, which is more efficient and cost-effective. For construction businesses, this can mean lower operating costs and a smaller carbon footprint.

Smart Meters: Your Energy Insight Tool

Smart meters are a game-changer for businesses. They provide near real-time data on energy consumption, helping you identify where energy is being wasted and where savings could be made. With smart meters, you can track usage patterns and make informed decisions about equipment and site operations.

Efficient Equipment and Operations

Heavy machinery and tools are essential, but they don’t have to be energy drains. When purchasing or hiring equipment, consider energy-efficient models and factor in lifecycle costs, not just upfront prices. Switching off motors, fans, and conveyors during breaks or after hours is a simple habit that could lead to savings.

Idle time is another hidden cost. Telehandlers and other machinery often run at low RPMs unnecessarily. Reducing idle time cuts fuel use, lowers maintenance costs, and improves air quality on site.

If your site uses air compressors, implement a regular leak detection routine. Research shows that up to 30% of electricity used in UK compressors is wasted due to leaks¹– a costly oversight for any SME.

Smarter Site Cabins

Site accommodation and welfare units can be surprisingly energy intensive. Choose cabins with good insulation, double glazing, and LED lighting. Adjust heating based on occupancy and weather and use dehumidifiers in drying rooms instead of heaters – they’re more efficient and cheaper to run.

Solar heating, passive ventilation, and heat pumps are excellent options for powering site cabins sustainably, especially for longer-term projects.

Energy Management: Low Cost, High Reward

Good energy management doesn’t require a big budget. Simple steps like scheduling equipment shutdowns, engaging staff in energy-saving practices, and using smart meters to monitor consumption can make a real difference.

For small businesses in the construction industry, these changes aren’t just about sustainability, they’re about surviving in a competitive market. By embracing energy efficiency, you could reduce costs, improve your reputation, and contribute to a greener construction industry.

For more practical advice on how to reduce your emissions and save on your energy costs, download our guide created in partnership with the Carbon Trust.

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