Building BESS is complicated, with myriad considerations around supplier contracts, site acceptance tests, data analysis, interface between different contractors.

The attractiveness of the BESS market for M&A and investment, amidst a slowdown in activity, was discussed on a panel at the Energy Storage Summit 2026 in London.

How can the industry prepare for when the first wave of utility-scale BESS projects begin to reach end-of-life?

Over 1.4GW/3.4GWh of grid-scale BESS came online in Europe, likely its best month ever, accounting for almost a fifth of global figures.

NGEN and Harmony Energy have made strides in deploying large-scale BESS projects in Germany, launching construction and securing pipeline financing respectively.

We catch up with Tamara de Gruyter, president of Wärtsilä Energy Storage, to discuss the system integrator’s strategy under new leadership.

Dutch TSO TenneT has signed a contract with a developer for a large-scale BESS which will help to relieve grid congestion, possibly enabling the quicker deployment of renewables in the Netherlands.

What does the combination of regulatory, supply chain and market pressures mean for the cost of building large-scale BESS this year?

Multinational power firm Engie has acquired two large-scale BESS projects in Spain, paired with synchronous condensers and has launched construction on a BESS in France.

IPPs Zelestra, BNZ and ALFI have secured offtake and financing to hybridise solar projects with BESS across Spain, Italy, Portugal and Romania.