VIDEO: Automation could reduce labour requirement of BESS manufacturing by c.85%, IPS says

June 26, 2025
LinkedIn
Twitter
Reddit
Facebook
Email

A new automated facility will need around 85% fewer employees per GWh of annual BESS manufacturing capacity, Bulgaria-based International Power Supply (IPS) said.

Talking to Energy-Storage.news in an interview for ESN Premium last week, IPS CEO Alexander Rangelov claimed the firm’s battery energy storage system (BESS) manufacturing in Bulgaria is the first ‘cell-to-system’ process in Europe.

Its capacity will reach 3GWh of capacity at the end of 2025 and then 4GWh once a new adjoining facility, which recently launched construction, is online. The firm is in the design phase of a larger, automated facility planned for 10GWh of capacity.

The current manufacturing processes requires around 30 employees per GWh of annual capacity. However, the planned 10GWh one will only require 45 employees in total, meaning an 85% reduction in the number of employees per GWh of capacity (from 30 to around 4.5).

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

For the full 30-minute video interview and write-up, read our article on ESN Premium here.

Rangelov also explained that the majority of BESS assembly does not require a specialised workforce.

“The instructions and the workflow and the processes are designed in a simple way so that you you don’t need special mechanical engineers or electrical engineers,” he said.

“The only section or a zone where you need electrical engineering skills is for the final testing because it’s also related to to safety. Working with high voltages and high power always requires a higher grade of skills.”

9 June 2026
Stuttgart, Germany
Held alongside The Battery Show Europe, Energy Storage Summit provides a focused platform to understand the policies, revenue models and deployment conditions shaping Germany’s utility-scale storage boom. With contributions from TSOs, banks, developers and optimisers, the Summit explores regulation, merchant strategies, financing, grid tariffs and project delivery in a market forecast to integrate 24GW of storage by 2037.
15 September 2026
San Diego, USA
You can expect to meet and network with all the key industry players again in 2025 from major US asset owners, operators, RTOs and ISOs, optimizers, software and analytics providers, technical consultancies, O&M technology providers and more.
15 September 2026
Berlin, Germany
Launching September 2026 in Berlin, Energy Storage Summit Germany is a new standalone event dedicated to Germany’s energy storage market. Bringing together investors, developers, policymakers, TSOs, manufacturers and optimisation specialists, the Summit explores the regulatory shifts, revenue models, financing strategies and technology innovations shaping large-scale deployment. With Germany targeting 80% renewables by 2030, it offers a focused platform to connect with the decision-makers driving the Energiewende and the future of utility-scale storage.

Read Next

April 24, 2026
Around 74% of battery storage projects in Australia’s NEM pipeline are confirmed to be equipped with grid-forming inverters, says AEMO.
April 22, 2026
Bobwhite Energy Storage, an affiliate of independent power producer (IPP) Tenaska has signed a long-term energy storage agreement (ESA) with utility Tennessee Valley Authority (TVA) for a 225MW/900MWh project in East Tennessee, US.
April 22, 2026
US battery storage developer Key Capture Energy could be up for sale as its owner considers options to “bring in a financial partner”, Energy-Storage.news has heard.
Premium
April 21, 2026
Energy-storage.news Premium speaks with the new CEO of nickel-hydrogen battery company EnerVenue, Henning Rath, about the company’s goals for 2026 and beyond.
April 21, 2026
Danish investment firm Copenhagen Infrastructure Partners (CIP) has begun construction on the 300MW/1,500MWh Patache battery energy storage system (BESS) in northern Chile.