Battery Energy Storage Systems
At PLUS ES, we specialise in delivering advanced Battery Energy Storage Systems (BESS) that help businesses, developers, and energy providers achieve greater energy efficiency, reduce costs, and support the renewable energy transition.
Whether you’re integrating storage with renewable energy, managing peak demand, or enhancing grid stability, we provide the expertise and innovation to bring your project to life.
150+
Grid Connection Projects
250+
Growing team
10+
BESS Delivered
6+
BESS OEMs installed
Challenges we solve

Designing a BESS involves complex technical interfaces, safety-in-design obligations, and coordination across HV and LV systems, often requiring specialist input and early-stage feasibility assessments.
Customers face ambiguity in navigating planning approvals, environmental assessments, and DNSP-specific requirements, which can shift mid-project and delay delivery.
Customers are often unclear on the connection process for their BESS project within the relevant DNSP Network.
Battery developers need to ensure that their projects are financially viable and meet their targeted economic returns. This includes upfront capital and ongoing operational expenses.
Given the complex nature of battery projects, customers are challenged with finding vendors that have the appropriate skill set and capabilities to successfully deliver a project end-to-end.
Why choose PLUS ES?

BESS specific strength & skillset
PLUS ES has a large, skilled workforce capable of delivering complex infrastructure programs across the Ausgrid Network. Our ability to mobilise quickly and scale resources ensures the timely execution of BESS projects, even under tight schedules or in remote locations. PLUS ES has also delivered several distribution connected batteries.

Internal design and engineering capabilities
PLUS ES performs engineering in-house, which allows for faster issue resolution and design adjustments during project delivery. This capability reduces reliance on external consultants and improves project agility and responsiveness.

Local presence and understanding of the Ausgrid Network
PLUS ES maintains strong working relationships with key market operators and distribution network service providers. These connections help streamline grid connection processes, regulatory approvals, and technical coordination, critical for BESS integration

Ongoing support and maintenance
We offer ongoing support and maintenance for a wide range of electrical infrastructure asset types. This ranges from HV network maintenance, through to BESS and EVCI systems. By engaging PLUS ES as a trusted maintenance partner, you can guarantee the uptime of your assets and derisk your operations.

How you can start your journey with PLUS ES?

Engage
Engage our BESS delivery team early to scope your project and de-risk technical complexities, from HV/LV integration to safety-in-design and feasibility assessments.

Request a tailored design
Request a tailored design and engineering review to leverage PLUS ES’s in-house secondary engineering expertise, ensuring faster adjustments, issue resolution, and a more agile delivery process.

Partner with PLUS ES
Navigate the approvals and grid connection process using our strong DNSP relationships and regulatory knowledge to streamline planning, reduce uncertainty, and accelerate project energisation.

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