Noise Control for Battery Energy Storage Systems

Helping operators manage EPA compliance while protecting health, safety and productivity

Battery Energy Storage Systems (BESS) are being installed across Australia to stabilise the grid, store renewable energy and provide backup power. While they operate quietly from an electrical standpoint, the auxiliary systems that support them generate steady noise that can impact nearby communities and compliance outcomes.

As part of the Flexshield Group, we have seen firsthand how noise from BESS installations can be managed with the right planning and infrastructure. Our approach keeps projects compliant and helps operators protect the health, safety and productivity of their teams.

Where BESS noise comes from

BESS units include large arrays of battery cells, but the real sound sources are the supporting systems. These can include HVAC units to regulate battery temperatures, inverters and transformers, switchgear, and backup generators. Each of these creates a continuous or pulsed sound profile that can carry well beyond the site boundary.

EPA noise limits and site impact

Every state and territory in Australia enforces EPA noise limits. Because BESS projects are often located near residential or environmentally sensitive areas, even moderate plant noise can lead to complaints or non-compliance notices. Addressing this during the design stage reduces the risk of retrofits or enforcement action later.

Acoustic infrastructure for BESS

Flexshield designs and manufactures engineered acoustic infrastructure to address the specific challenges of BESS projects. This can include:

1. Barriers and enclosures around HVAC systems, inverters, or transformers are used to reduce sound transmission.
2. Sonic Access acoustic doors for plant enclosures to maintain acoustic integrity at entry points.
3. Sonic Series acoustic louvres to allow airflow for cooling systems while controlling noise.
4. Acoustic curtains and pipe lagging for flexible treatment of ductwork or exposed services.

Each component is built for Australian conditions and backed by NATA-tested performance data.

Health, safety and productivity benefits

By addressing noise proactively, BESS operators protect not only compliance but also the well-being of workers and neighbours. Lower sound levels reduce stress, support effective communication on-site, and contribute to more productive operations.

Proven experience

Flexshield Group has more than two decades of experience delivering dependable noise control for high-demand industrial sites across Australia. Our team provides site assessments, acoustic modelling and installation support to ensure each solution aligns with EPA requirements and project goals.

Flexshield delivers tailored, engineered solutions that perform safely, consistently and compliantly. For BESS installations facing plant noise challenges, we will make sure it is built right from the start.

Contact Flexshield on 1300 799 969 or get in touch online.

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Designed to perform. Built to last.