Author

Tristan Rayner pv magazine editor

Tristan Rayner pv magazine editor

Tristan Rayner

After studying Electrical Engineering and working in the field in control systems, Tristan turned his attention to editorial roles. Prior to joining pv magazine in 2020, and ESS News in 2024 in Berlin, he was Managing Editor and Founding Editor of tech and other publications in Australia.

With years of experience in news, tech, and energy, he has also contributed to a host of publications and podcasts. He also works on YouTube channel The Friday Checkout, among other roles.

Articles written by Tristan Rayner

Finance

R.Power secures €30 million in Green Bonds to accelerate battery storage expansion R.Power has issued more green bonds as it continues to expand in renewables, with a new project in Romania also secured.

Jun 20, 2025

Finance

Protecting energy storage: new policy tackles cyber threats A new, tailored cybersecurity insurance solution, purpose-built for the battery energy storage system (BESS) sector, shows how digital risks are being managed.

Jun 20, 2025

Grid-scale

MET Group commissions Hungary’s largest battery storage facility MET Group has switched on Hungary’s largest battery, a 40 MW/80 MWh system, at the site of a power station near Budapest.

Jun 19, 2025

Finance

South Australia advances long-duration energy storage with new 15-year support mechanism A possible boon for long-duration energy storage concepts is on the cards via supportive government deal structures.

Jun 19, 2025

Policy

EcoFlow reports storage surge as Germany reaches 1 million balcony power systems registered EcoFlow reveals just how much storage is being added into the plug-in balcony solar system ecosystem in Germany. ESS News spoke with Arne Herkelmann, regional product manager at EcoFlow, about the milestone, the critical data shaping the market, and the hurdles that remain in Germany and wider Europe.

Jun 13, 2025

Large battery energy storage by Fluence

Fire risk and safety

Fluence completes UL-rated fire safety tests of Gridstack Pro 5000 Fluence has successfully completed fire and explosion evaluations under UL standards for its 5.6 MWh battery, while exploring benchmarks for the coming 2026 NFPA 855 standard.

Jun 13, 2025

Finance

Energy Vault, Jupiter Power expand partnership with 200 MWh battery project in ERCOT Energy Vault has continued to be active in the battery energy storage system (BESS) space, with more demand in Texas.

Jun 06, 2025

Auctions

South Africa’s BESIPPPP Window 3 ends with two big winners South Africa greenlit 616MW in new battery storage projects as part of its energy storage scheme, a $530 million investment boosting national grid capacity and championing local industry wins.

Jun 02, 2025

Grid-scale

Rolls-Royce to deliver 144.4 MWh battery system to Battery Park Zeewolde The 35.1 MW / 144.4 MWh system marks the second delivery to the location situated near a wind farm.

Jun 02, 2025

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