Renewable Energy Weekly — 2026-06-05
South Africa's renewable energy market is attracting R161.2 billion in investments through 2030, while global battery storage additions hit a record 108 GW in 2025. Meanwhile, the US added 6.4 GW of utility-scale solar and wind capacity in Q1 2026, with significant project pipelines expected to reach completion later this year.
Renewable Energy Weekly — 2026-06-05
Top Stories
South Africa Opens R161.2 Billion Renewable Energy Investment Pipeline
- What happened: South Africa's renewable energy sector is attracting approximately R161.2 billion (roughly USD 8.7 billion) in investment commitments through 2030, driven by private power purchase agreements (PPAs), solar and wind projects, and energy storage systems.
- Why it matters: This marks a significant shift toward private-sector renewable energy development in South Africa, addressing energy security challenges and positioning the country as a major renewable energy hub in Africa. The investment wave reflects growing global confidence in solar and storage economics.
- Scale: R161.2 billion investment through 2030 across multiple technology types

IEA Reports Record 108 GW of Global Battery Storage Additions in 2025
- What happened: The International Energy Agency (IEA) released data showing a record 108 GW of battery energy storage system (BESS) additions globally in 2025, marking a massive acceleration in energy storage deployment.
- Why it matters: Battery storage is becoming critical to grid stability as solar and wind capacity expands. This milestone demonstrates that storage is no longer a bottleneck for renewable energy integration and confirms economics favor large-scale deployment.
- Scale: 108 GW of new battery storage capacity added in 2025 globally

US Q1 2026: Solar and Storage Lead Clean Power Additions with 6.4 GW
- What happened: The US added 6.4 GW of utility-scale solar, wind, and storage capacity in Q1 2026, with solar and battery storage accounting for more than 90% of new clean power additions. Wind capacity in the pipeline remained stagnant at 28 GW, while offshore wind declined 33.3% to 10 GW.
- Why it matters: This data shows a decisive shift away from wind toward faster-to-deploy solar and storage technologies. Many projects remain under construction and are expected to reach commercial operation dates (COD) later in 2026, potentially driving another wave of capacity additions.
- Scale: 6.4 GW added in Q1 2026; solar and storage comprise >90% of additions

Project Tracker
| Project | Type | Capacity | Location | Status | Source |
|---|---|---|---|---|---|
| Adani Green Energy Khavda | Solar | 50 MW | Kutch, India | Operational (commissioned June 2) | |
| NTPC Fatehgarh Battery Storage | Battery Storage | 3,200 MWh | Rajasthan, India | Tender/Under Development | |
| Protium Hydrogen Dorset Hub | Green Hydrogen | 2.5 MW | UK | Operational/Development |
Policy & Regulation
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United Kingdom: Energy Minister Michael Shanks is evaluating a community battery storage subsidy program to distribute power generation and storage capabilities to local communities, emphasizing "putting power back into the hands of local people."
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India: NTPC Green Energy launched a major tender for 3,200 MWh of battery energy storage at the Fatehgarh Solar Plant in Rajasthan, supporting India's renewable energy integration and grid stability goals.
Investment & Finance
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Protium Hydrogen/UK: Strategic partnerships advancing green hydrogen production in the UK. Protium Hydrogen is operating a 2.5 MW electrolyzer hub in Dorset producing 350 kg/day of green hydrogen, representing early-stage commercialization of hydrogen technology amid broader 10 GW UK production targets.
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ITM Power Partnership: Sheffield-based ITM Power announced a strategic partnership with a green hydrogen firm to develop, invest in, and operate industrial-scale green hydrogen production plants across the UK, with initial focus on the Cromarty Project in Scotland.
Technology Spotlight
Energy and heat engineering standards saw significant May 2026 updates covering hydrogen, battery storage, and solar technologies. These updates reflect rapid standardization of emerging green hydrogen electrolysis systems and battery energy storage technologies, supporting commercialization of novel materials and efficiency improvements in solar and storage across global markets.
What to Watch Next Week
- NTPC Battery Tender Deadline: Monitor progress on NTPC Green Energy's 3,200 MWh battery storage bid process in Rajasthan; expected updates on bidder proposals and timeline
- UK Community Battery Subsidy Decision: Watch for formal announcement from UK energy ministry on community battery storage subsidy parameters and funding allocation
- US Project COD Announcements: Track utility announcements on commercial operation dates for large solar and storage projects from Q1 2026 pipeline, expected throughout 2026
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