# DNV Advises on TotalEnergies’ Battery Portfolio Sale to Allianz
TotalEnergies has divested an 800 MW German battery storage portfolio to Allianz Global Investors in a transaction that represents one of the largest battery storage deals in Germany. DNV provided advisory services for the transaction, underscoring the growing role of classification societies and technical advisors in renewable energy infrastructure deals beyond traditional maritime services.
The sale reflects the broader energy transition underway in Europe’s largest economy, where Germany’s ambitious renewable energy targets have driven rapid growth in battery storage capacity. As ports increasingly electrify their operations—from shore power infrastructure to battery-powered cargo handling equipment—grid-scale battery solutions like this portfolio become critical enablers of decarbonization. The financing and acquisition of such assets by institutional investors signals deepening confidence in the renewable energy sector’s maturity and investment appeal.
For the maritime industry, this transaction highlights how energy infrastructure investments are reshaping port operations and supply chains. As shipping companies pursue decarbonization strategies, reliable battery storage systems will support the transition to zero-emission vessels and charging infrastructure at major terminals. The involvement of technical advisors like DNV in non-traditional maritime projects demonstrates how the industry’s expertise is expanding to address the infrastructure needed for shipping’s green transition.