Welcome to the SST Sustainability Scoop for 25 August 2026, bringing together today’s important developments in sustainable infrastructure, renewable energy and environmental technology.
South Africa leads our briefing today, with another major injection of private renewable generation into the electricity system and the country’s infrastructure community gathering in Cape Town to tackle one of its most persistent challenges: municipal infrastructure.
Elsewhere in Southern Africa, Namibia is pushing ahead with green hydrogen, while Indonesia has launched a huge new solar programme.
Lead News: South Africa Registers R20 Billion in New Renewable Energy Facilities
South Africa’s renewable energy expansion continues gathering momentum, with the National Energy Regulator of South Africa registering 124 renewable generation facilities during the first quarter of the 2026/27 financial year.
Together, the projects represent 804 MW of generation capacity and an estimated R20.18 billion in investment.
The registrations include 122 solar photovoltaic facilities providing 236 MW and two wind facilities contributing another 568 MW.
Importantly, the projects aren’t concentrated within one part of the country. Facilities have been registered across all nine provinces, demonstrating how decentralised generation is becoming increasingly embedded within South Africa’s electricity landscape.
Of the 124 facilities, 63 will connect to municipal distribution networks, providing 47 MW of combined capacity. The remaining 61 projects will connect to the Eskom network and account for 757 MW.
NERSA also appears to be accelerating the administrative side of the transition. Applications were processed in an average of 10 working days, compared with 11 during the corresponding period in the previous financial year.
The bigger picture is even more significant.
Since the generation registration regime began in 2018, NERSA has registered 2,619 generation facilities representing 20,131 MW and approximately R409 billion in investment.
South Africa therefore doesn’t appear to have a shortage of appetite for renewable generation. Increasingly, the bigger challenge is ensuring that the national transmission and distribution infrastructure can actually accommodate it.
Read the full NERSA renewable energy report
Lead News: South Africa Puts Municipal Infrastructure in the Spotlight
South Africa’s infrastructure challenges are taking centre stage in Cape Town today as President Cyril Ramaphosa addresses the 5th Sustainable Infrastructure Development Symposium of South Africa (SIDSSA).
Running from 23–25 August at the Century City Convention Centre, this year’s symposium carries the theme “Shaping the Future of Municipal Infrastructure.”
That focus is significant.
Discussions surrounding sustainable infrastructure frequently centre on major national projects, renewable power plants and large transport networks. Yet much of the infrastructure affecting people’s daily lives sits at municipal level: water, sanitation, roads, electricity distribution, waste systems, housing and digital services.
SIDSSA brings together government, State-Owned Entities, multilateral development banks, development finance institutions, private-sector representatives, academics, mayors and technical experts.
The objective isn’t simply identifying projects. The symposium is also intended to improve access to sustainable and affordable financing while aligning infrastructure development with South Africa’s National Development Plan and the United Nations Sustainable Development Goals.
Digital infrastructure, agriculture and housing are also receiving attention.
For the sustainability sector, the key issue is execution. South Africa has no shortage of ambitious infrastructure strategies. Turning those strategies into resilient municipal systems that communities can actually depend upon remains the real measure of success.
Read the Presidency’s SIDSSA announcement
In Other News: Namibia Pushes Africa’s Green Hydrogen Ambitions Forward
Namibia is positioning itself at the forefront of Africa’s emerging green hydrogen economy with what is described as the continent’s first fully integrated green hydrogen facility.
The development demonstrates how Southern Africa could combine abundant renewable resources with hydrogen production to create new industrial and export opportunities.
Green hydrogen is produced by using renewable electricity to split water through electrolysis, potentially allowing energy generated from solar and wind resources to be stored or transformed into fuels and industrial products without the emissions associated with conventional hydrogen production.
The implications stretch beyond Namibia.
South Africa is developing its own green hydrogen ecosystem, supported by significant platinum resources and renewable-energy potential. If neighbouring countries successfully commercialise projects, Southern Africa could eventually develop interconnected hydrogen production, manufacturing, transport and export industries.
The technology still faces considerable challenges, particularly cost, infrastructure and securing long-term buyers. Nevertheless, Namibia’s progress provides an important African demonstration of what an integrated hydrogen economy could look like.
Read more about Namibia’s green hydrogen development
In Other News: Indonesia Launches 5.3 GW of Solar Projects
Indonesia has taken a significant step towards expanding its renewable electricity system with the launch of 14 solar power projects totalling 5.3 GW.
President Prabowo Subianto inaugurated the projects on 25 August as the country pursues a much larger ambition: adding 100 GW of new solar capacity by 2029.
For an economy historically dependent on coal, development on this scale could materially alter Indonesia’s future electricity mix.
It also illustrates a broader shift within emerging economies. Renewable deployment is no longer being driven exclusively by Europe, North America and China. Countries facing rapid electricity-demand growth increasingly see solar and other renewable technologies as part of energy security and economic development rather than purely climate policy.
The challenge, as many countries are discovering, will be ensuring transmission infrastructure and energy storage expand quickly enough to support enormous volumes of variable renewable generation.
Read the Reuters report on Indonesia’s solar expansion
Around the Sustainability World
South Africa’s renewable investment passes R400 billion — Registered renewable projects have now reached an estimated R409 billion, increasing pressure to accelerate the thousands of kilometres of transmission infrastructure required to connect new generation. Read more at Business Day
Eskom’s Energy Availability Factor improves — Eskom says its weekly EAF reached 72.56%, while year-to-date availability climbed to 67.79%, its strongest level since 2020. Read the Eskom update
India’s solar boom exposes a grid problem — India is considering low-cost loans for renewable generators affected by transmission constraints after 14% of solar generation was curtailed between April and June. Read the Reuters report
The Vatican plans a €100 million agrivoltaic project — An 80–90 MW renewable development near Rome would combine agricultural production with solar panels and provide electricity for Vatican City and associated facilities. Read more at Reuters
Hydrogen and batteries don’t have to compete — Energy specialists argue Southern Africa can use battery storage alongside hydrogen technology, with each addressing different requirements within increasingly renewable electricity systems. Read more at Engineering News
South Africa’s grid remains the renewable transition’s bottleneck — Growing generation capacity is intensifying pressure to expand transmission infrastructure so new renewable projects can actually deliver electricity where it’s needed. Read the Reuters report via Polity
