Electric and Low Emission Plant – Are They Right for Your Project?

Construction, like many industries, is evolving. There’s increasing pressure to reduce emissions, improve efficiency, and operate more sustainably. 

As part of this, The Construction Leadership Council’s CO2nstruct Zero campaign has set a target to cut diesel use in construction by 78% by 2035 (Construction Leadership Council).

Regulations, client expectations, and rising costs are all accelerating the shift from traditional diesel machinery to electric and low-emission alternatives. This is no longer something for the future, it’s already shaping how sites operate today.

But what does that actually mean for your project and your equipment choices? In this article, we break down what low-emission plant really is, why the shift is happening, and whether it’s the right move for you.

What do we mean by ‘low-emission’ plant?

Low-emission plant refers to machinery designed to reduce environmental impact by limiting exhaust emissions, noise, and fuel consumption. 

While the machines themselves may look like the familiar excavators, dumpers, and telehandlers we’ve come to know and love, the way they are powered is what sets them apart.

Electric plant

Much like electric cars, electric plant machinery runs entirely on battery power rather than a traditional diesel engine.

They produce zero direct emissions during operation, significantly reduce noise levels, and generally require less maintenance due to having fewer moving parts. This makes them particularly well-suited to environments where noise and air quality are key considerations.

Electric options are now widely available across smaller to mid-sized plant, including excavators, dumpers, and access equipment. For many projects, they are no longer a niche option, they are a practical, everyday choice.

Hybrid plant

Hybrid machinery combines both electric and diesel power, offering a middle ground for those not quite ready to go fully electric.

The electric component supports the diesel engine, improving fuel efficiency and reducing overall emissions. Depending on the machine, power sources can switch or work together to optimise performance.

Hybrid machines are often seen on larger equipment where full electrification is still developing. They’re particularly useful on sites that require flexibility, for example, quieter operation in certain areas alongside the power needed for heavier outdoor work.

HVO fuelled plant

HVO (Hydrotreated Vegetable Oil) is a renewable diesel alternative made from waste oils and fats. It can be used as a direct replacement for traditional diesel in many engines, without requiring modifications.

One of its biggest advantages is its lower environmental impact. HVO can reduce lifecycle CO2 emissions by up to 90% compared to fossil diesel (Compass Energy), making it a popular choice for companies looking to lower their carbon footprint without replacing their entire fleet.

For many contractors, HVO offers a practical stepping stone between diesel and full electrification.

Why the shift is happening

The move towards low-emission plant isn’t happening in isolation, it’s being driven by several key factors.

The UK’s 2050 Net Zero Strategy sets out a clear path to reducing greenhouse gas emissions by 2050, and construction plays a significant role in achieving that target.

Clean Air Zones (CAZ) and Low Emission Zones (LEZ) are becoming more common. London has led the way with strict emission standards for construction machinery, and other cities such as Birmingham and Bristol are following suit. These regulations directly impact the type of plant that can be used on certain sites.

Client expectations are also shifting, with more projects now prioritising sustainability from the outset. This means that contractors are increasingly expected to demonstrate environmentally responsible practices.

On top of that, rising fuel costs are making alternatives more attractive. While electric machines can have a higher upfront cost, the reduction in fuel and maintenance can make them more cost-effective over time, particularly when hired rather than purchased outright.

The benefits of electric & low-emission plant

There are several reasons why more contractors are making the switch, or at least considering it.

From an environmental perspective, reduced emissions contribute directly to improved air quality and help support wider sustainability goals. 

Lower noise levels are another major benefit, especially for projects in residential areas or those requiring out-of-hours work.

Electric machines eliminate the need for diesel, and with fewer moving parts, maintenance requirements are typically lower. Over the duration of a project, these savings can add up.

In terms of site performance, quieter machines create a better working environment, while the absence of exhaust fumes makes electric plant particularly well suited to enclosed or indoor spaces.

How plant hire helps you make the right choice

At Rockthorn, we offer access to both electric and diesel fleets, allowing you to choose the right machine for each project rather than committing to one approach. Not every job will suit electric, and that’s okay, the key is having options.

Hiring your machinery instead of buying removes the barrier of high upfront costs, making it easier to trial electric or low-emission equipment without long-term commitment. It’s a practical way to explore what works for your business while keeping projects running efficiently.

There’s also a wider sustainability benefit. By hiring rather than buying, machinery is used more efficiently across multiple projects, reducing the need for additional manufacturing and lowering overall environmental impact.

Most importantly, you’re not making these decisions alone. Our team is always on hand to help you choose the right equipment for your site, ensuring you get the best balance of performance, cost, and compliance.

If you’ve got a job coming up and want to explore your options, give us a call on 0330 118 5030. We’ll help you find the right kit and make sure it’s where you need it, when you need it.