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.”

24 February 2026
InterContinental London - The O2, London, UK
This isn’t just another summit – it’s our biggest and most exhilarating Summit yet! Picture this: immersive workshop spaces where ideas come to life, dedicated industry working groups igniting innovation, live podcasts sparking lively discussions, hard-hitting keynotes that will leave you inspired, and an abundance of networking opportunities that will take your connections to new heights!
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.

Read Next

Premium
January 29, 2026
“We see energy storage as an opportunity for (data centres) to reduce their impact on the grid”, said Patrick Hughes, Senior VP of Operations and Strategy at NEMA.
Premium
January 28, 2026
Leading BESS owner-operators across Europe discuss the key trends around the financing and deployment of grid-scale projects, with the segment now the driver of continent-wide deployments according to trade body SolarPower Europe.
January 28, 2026
Utility company Avista has selected projects as part of its request for proposal (RFP) process to identify new resources, including a 100MW battery energy storage system (BESS), for the Pacific Northwest, US.
January 27, 2026
Three energy storage projects have reached key milestones, including pumped hydro, thermal storage, and geothermal alternatives to battery energy storage systems (BESS).
Premium
January 22, 2026
Foreign entity of concern (FEOC) restrictions and the scheduled Section 301 tariff increase to 25% on Chinese-origin battery energy storage systems (BESS) went into effect on 1 January 2026.