How BESS Supports Renewable Energy Integration
Solar and wind power are changing the game when it comes to how businesses generate and use energy. But, while they’re great for the environment, their unpredictability can be tricky for industries that need a constant, reliable power supply. When the sun isn’t shining or the wind stops blowing, fluctuations in generation can lead to unreliable power, downtime, or increased reliance on fossil fuels. This is where Battery Energy Storage Systems (BESS) step in, acting as a bridge between energy supply and demand.
By storing excess renewable energy and dispatching it when needed, BESS solutions help companies balance out the volatility of renewables, enabling reliability, cost savings, and a reduced carbon footprint. At Aggreko, we pride ourselves on delivering flexible, on-demand energy solutions that let businesses tap into the benefits of renewables without investing in costly permanent infrastructure. With years of experience across multiple sectors, from mining to data centres, we’re committed to helping you integrate greener power seamlessly into your operations.
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What is Battery Energy Storage (BESS)?
A Battery Energy Storage System is designed to capture and store energy for use when it’s most needed. In a renewable context, BESS typically operates in tandem with solar PV or wind systems, absorbing surplus power during high generation periods and releasing it when generation dips. Unlike traditional backup generators that rely on fossil fuels, BESS uses lithium-ion, lithium-iron phosphate or other advanced battery technologies to deliver instantaneous power without combustion, noise, or fuel logistics.
At Aggreko, we’ve refined our approach to BESS to offer a range of solutions, from small to mid-sized units, up to large 20ft containerised battery storage systems, catering to a variety of industry applications. Whether it’s a temporary event site or a multi-year mining project. Our flexible fleet ensures that we can meet diverse energy needs, with solutions that are quick to set up and easy to integrate with other assets like diesel or gas generators and solar arrays. With a broad operating temperature range, our BESS units can reliably support applications in environments ranging from desert heat to cooler climates.
From a technical standpoint, BESS units handle charge-discharge cycles via integrated controls that maintain stable power output. This rapid response capability is invaluable for peak shaving, frequency regulation, and grid support, especially in regions with intermittent renewable generation or congested grid conditions. By storing renewable energy and releasing it on demand, BESS effectively transforms solar and wind from intermittent resources into dependable power sources, smoothing out fluctuations in real time.