Article

Using BESS to solve the energy challenges for quarry operations

2026-06-09

Battery Energy Storage Systems, or BESS, are becoming increasingly relevant for quarry operations, where power demand, site conditions, and operational needs can vary significantly over the day or week. A BESS can make a real difference by helping operators lower costs, improve flexibility, add new revenue streams and make better use of available grid power during idle periods.

The image shows a PU500 in a quarry with a few boulders in the foreground

Quarry operations are energy-intensive by nature. Crushing, processing, washing, and moving material all require large amounts of power, often in short bursts. At the same time, production rarely runs at a constant pace. Activity can ramp up quickly when demand is strong, then slow down or pause when stockpiles build up or market conditions shift. The result is an uneven and potentially costly load profile, with sharp peaks and periods of low utilization.

That makes Battery Energy Storage Systems, or BESS, a perfect fit for quarries. Beyond storing electricity, a BESS can help solve practical challenges on site. It can reduce costly peaks in demand, make better use of existing grid capacity, improve power quality, and add flexibility where grid access is weak, limited, or temporary.

Cutting costly peaks

One of the clearest use cases for BESS in quarry operations is peak shaving. Crushing lines can create sudden spikes in electricity demand. During these spikes power becomes increasingly expensive and puts extra strain on the site’s energy setup. The more volatile these ups and downs are, the harder it becomes to manage cost and power supply efficiently.

A BESS can help by discharging during those peak moments, reducing how much power the site needs to pull from the grid at once. The effect is a flatter, more controlled load profile, often by keeping grid import within a defined threshold and lowering overall energy cost. The BESS can also store energy when electricity prices are lower and use it during periods of higher demand, further improving site economics.

Figure 1: Quarries weekly load profile with BESS peak shaving and ancillary services

As shown in Figure 1, the BESS helps reduce the cost of running a power-hungry operation through peak shaving by lowering grid demand during peak periods. It can also help avoid costly grid upgrades.

Turning idle capacity into an asset

Quarries often build inventory and then wait for demand. If sales slow, production may pause for days, weeks, or longer. But even when operations stop, the site may still hold a sizable grid connection. In practice, that can mean paying for capacity that is barely being used.

This opens up another role for BESS, as shown in Figure 1. Instead of letting that grid connection sit idle, the BESS can help create value from it. With the right setup, the battery can use available grid capacity to provide ancillary services that help maintain grid stability, while also supporting other revenue-generating activities. This can create revenue opportunities from capacity that would otherwise go unused.

A practical fit for temporary and constrained sites

Not every quarry has a strong, permanent grid connection. Some sites are temporary by design and may operate for only a couple of years before activity moves elsewhere. In those cases, investing in a major grid upgrade may not make financial sense, and some sites therefore rely heavily on generators.

A BESS can just as easily support sites where the grid is weak, limited, or unavailable at the scale the operation needs. It can also help reduce dependence on diesel generators, which may lower CO₂ emissions and local exhaust emissions on site compared with running generators continuously. Combined with on-site solar generation, a BESS may even eliminate diesel generators altogether and maximize the value of the installed solar system. This is especially relevant for operators working toward sustainability targets or seeking to improve local site conditions. Using a BESS instead of a diesel generator may also contribute to a quieter site environment which improves situational awareness around mobile equipment and reversing vehicles.

For operations that shift over time, mobile battery units can be moved as site layouts change, helping operators support different areas of the quarry without the need for permanent electrical build-out in every location.

In these environments, power quality can also be a challenge. Large and rapidly changing industrial loads can create unstable power conditions. A BESS can help stabilize that environment by smoothing the site’s power profile and supporting more consistent operation. This can result in more stable performance and reduce visible issues such as flickering lights in offices and break rooms.

An efficient solution

For quarry operators, the value of a BESS goes beyond energy storage alone. It can also mean reducing the cost of aggregates by lowering the cost tied to each ton produced.

Depending on the application, different solutions may fit different needs. For example, a portable unit such as the PU500 can support flexible on-site applications where equipment and power needs move around the quarry, while the larger PU2000 is better suited to site-level needs such as peak shaving and supporting grid-related services.

To learn more, visit our BESS product page or get in touch with us to discuss how a BESS could support your site.