Energy Vault partners with Eskom to deploy gravity storage in South Africa

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Energy Vault and Eskom Announce Strategic Development Agreement to Deploy Grid-Scale Gravity Energy Storage Systems in South Africa

May 12, 2026 9:00 AM EDT

Eskom and Energy Vault are announcing an agreement to deploy a gravity storage system at the Hendrina Power Station in Mpumalanga province, South Africa, with intention to license, co-develop and partner to deploy up to 4GWh of long duration energy storage across 16 SADC member states

The partnership will significantly advance regional efforts to transition away from coal, leverage joint material science technology for economic re-use of waste coal ash within the energy storage medium while enabling grid reliability, job creation, and local economic development

WESTLAKE VILLAGE, Calif. & JOHANNESBURG--(BUSINESS... More