How Do BESS Solutions Cut Costs on Construction Sites?
Date: 12/06/26
The financial pressures on construction projects are increasing all the time. The cost of materials is rising, the minimum wage and employer National Insurance contributions have risen sharply, and high interest rates make financing more expensive. Worst of all, fuel costs have rocketed in recent months, as a result of multiple conflicts overseas.
The good news is that you can cut your operating costs significantly by using Battery Energy Storage Systems, often known as BESS solutions.
A Battery Energy Storage System reduces site operating costs by capturing and storing electricity when it’s cheap and abundant, and releasing it when it’s needed most. BESS solutions lower diesel fuel consumption, maximise renewable energy use and reduce generator maintenance costs.
How Do Battery Energy Storage Systems Reduce Energy Bills?
BESS solutions work in a number of different ways to reduce the cost of energy for your site. This includes:
1. Drastically Reducing Diesel Generator Fuel Consumption
On many sites, diesel generators run all day long, whether they are needed or not, and they often run inefficiently at above or below their ideal output. This wastes fuel and puts unnecessary strain on generators and other connected equipment.
BESS Solutions store energy during low-use periods, ready for release when it is needed. This means that the generator only runs when battery levels are low or demand is high, cutting generator run time and slashing fuel costs.
2. Maximising Renewable Energy Use
Solar power and wind energy are free, but are often intermittent, making them unreliable as a primary source of energy. During peak generation, renewable energy often goes to waste, while at other times it is insufficient to meet site demands.
BESS solutions allow you to harvest maximum energy from your renewables, using systems such as Think Hire’s Solartainer Versatile, and store it for later use when these renewables are not available.
3. Peak Shaving and Load Shifting
Construction sites often have short periods of high demand when cranes and other equipment are used simultaneously. Without a Battery Energy Storage System , you need to hire larger generators, in greater numbers, in order to allow for this peak demand.
Peak shaving and load shifting reduce the energy required directly from generators by using stored energy to top up their output during high demand. This avoids the need for larger generators, cutting both fuel costs and hire charges.
Peak shaving and load shifting also save money on grid-connected sites, storing energy at off-peak times and avoiding dependence on external supplies during high tariff periods.
4. Slashing Maintenance and Servicing Costs
The more often a generator is running, and the higher the demands placed on it during peak times, the greater the wear and tear. This leads to increased service and maintenance costs and more frequent replacements.
BESS solutions mean generators are run much more efficiently, cutting generator runtime and reducing strain on the equipment during peak demand. This saves money on consumables, cuts the cost of parts and labour for maintenance and repairs and extends the life of generators, delivering a greater return on investment.
Additionally, the consistent power quality of a Battery Energy Storage System avoids voltage drops and power surges that place additional stress on connected equipment, cutting maintenance costs across your fleet.
5. Lowering Carbon Emissions
BESS solutions lower carbon emissions by cutting the runtime of traditional diesel generators and facilitating the use of renewable energy. Lower carbon emissions not only help you reach your Net Zero goals, but can also save money and make money.
Some inner-city areas have strict limitations on emissions. Mitigating diesel generator emissions can be very expensive, and fines for exceeding limits can be costly.
Proving lower emissions can also help your company to tender for work for clients who prioritise environmental concerns. What’s more, with lower operating costs, those tenders will be much more competitive.
Save money on your site with BESS solutions from Think Hire
BESS solutions are not just an environmental consideration; they can have a real impact on your operating costs and the profitability of your project.
To find out more about Think Hire’s industry-leading Battery Energy Storage Systems and how they can start saving you money from day one, get in touch with our team today.
Frequently Asked Questions About BESS Solutions
A BESS (Battery Energy Storage System) is an advanced battery technology that captures low cost electricity from the grid, diesel generators, or renewable sources like solar panels, and stores it in high-capacity batteries for later use.
Yes, as long as the site has a sufficient source of alternative energy, such as solar power. In practice, most sites need to run a hybrid system, with both renewable energy and a diesel backup generator.
Many sites will see a return on their investment within the first few weeks, thanks to reduced generator fuel costs. These savings will continue to add up when you factor in reduced generator service and maintenance costs.
Yes. By storing energy during the day and releasing it at night, BESS solutions can remove the need to run generators overnight in residential areas. They can also facilitate the use of silent generation technologies, such as solar power, cutting noise levels around the clock.
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