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Africa is expected to overtake Europe in geothermal capacity by 2030.

Financial and commercial advisory service provider Greencrowd Partnership LLP has explored the potential of geothermal energy in southern Africa as Kalahari GeoEnergy Limited’s Bweengwa River project continues to progress

In a report titled ‘Geothermal in Zambia: Energy Beyond Power’, Greencrowd made reference to the three key challenges facing the southern African country today – an overreliance on hydropower generation (which fuels 85% of its electricity); low levels of energy access (31% of the population has access); and an unmet energy deficit (estimated at approximately 500MW).

The first of these challenges is one exacerbated by the climate emergency; severe droughts have a disastrous effect on the country’s ability to generate hydropower for instance. The resulting loadshedding (exemplified in March this year when low water levels in the Kafue and Zambezi basins led to power utility ZESCO to commence eight-hour daily loadshedding) brings even greater hardship on the population. Indeed, the Greencrowd research pointed to the knock-on effect on jobs and livelihoods, with more than half of the Zambian population thought to be living below the poverty line.

That is not to say the situation is hopeless. The paper outlined the severity of situation before referencing the brightening broader financial situation of the country (which recently signed an in-principle agreement with international bondholders and is working to restructure its debt) and the enactment of energy policy and regulatory framework that is highly conducive to investment in the energy sector.

More hope can be found in the near-limitless potential of geothermal power. Offering clean, reliable and stable baseload power and the ability to efficiently heat and cool homes, factories and other facilities (such as data centres) the Greencrowd research suggested it could be ‘the answer’ to the country’s energy challenges, and one that is unaffected by external weather forces.

“Geothermal is the only fully renewable resource. Producing zero carbon, with a geographic footprint a fraction of the size of a solar field, geothermal energy provides constant, consistent baseload power, regardless of external factors such as water level (hydro), wind speed and direction (wind energy), or duration and intensity of sunlight (solar),” said Peter Vivian-Neal, founder and CEO of Kalahari, in the report.

Discover the full piece outlining the geothermal potential and the progress made on the Bweenga River Geothermal Project by clicking here.

The Cat G3520 Fast Response natural-gas generator set is available for dealers around the world. (Image source: Cat)

Caterpillar has launched the Cat G3520 Fast Response natural-gas generator set for 50 Hz applications including hospitals, data centres, retail complexes, schools, government buildings and universities, as well as research and industrial facilities

According to Cat, the genset is now available to dealers around the world and provides 2.6MW for emergency standby and demand response. Engineered to address the ISO8528-5 G2 standard, it starts and accepts load from a cold start in 10 seconds, and it is capable of receiving and recovering from a 100% block load.

It features Caterpillar’s EMCP 4 control system, which provides engine and generator set control, protection, and monitoring. The control system's Ethernet communication capabilities make it easy to integrate into building management systems. Its expanded features include a gas train, package-mounted radiators, and simplified wiring for easier installation.

For enhanced performance, the Cat G3520 Fast Response generator set can be configured with the Cat Energy Control System (ECS), a new suite of integrated, connected and scalable controllers. The Cat ECS allows customers to manage energy needs ranging from a single generator set to cohesive, full-site microgrid solutions that optimise multiple power generation sources for resiliency, emissions and cost.

Reducing emissions while delivering critical power

“As our global customers look for mission-critical power that can also help meet their sustainability goals, the Cat G3520 Fast Response generator set provides a high-performance, natural-gas option that helps reduce their greenhouse gas emissions when compared with traditional backup solutions,” remarked Melissa Busen, vice president for Caterpillar’s Electric Power Division.

With the new release, Cat has now added to its proven portfolio of natural-gas power solutions offering fast-response capabilities. Recently, African Review spoke to Carl Emery, regional sales manager for Europe, Africa and Middle East for Caterpillar Electric Power, to learn how the organisation is positioning to champion generator market growth on the continent. Discover the full Q&A at: https://africanreview.com/energy/caterpillar-positioned-to-champion-generator-market-growth

The groundbreaking ceremony was attended by key representatives from the Ugandan Government, local communities and the companies involved in the project’s delivery. (Image source: AMEA Power)

AMEA Power, a fast-growing renewable energy company, has broken ground at the 24MW solar PV project in Uganda in the presence of Government officials

The project is being implemented by Ituka West Nile Uganda Limited, a project company registered in Uganda and fully owned by AMEA Power, and is located on a 52- hectare site in Ombachi village in the West Nile Sub-Region, around 450 km from Kampala. It includes a 1X24MVA 33/132kV transformer substation/switchyard and will be evacuated through the newly constructed Lira-Gulu-Nebbi-Arua 132kV transmission line, operated by UETCL, the offtaker. Once commissioned, it will reportedly be the first and largest utility-scale grid-connected solar PV project in the West Nile Region.

The groundbreaking was marked by a ceremony attended by Ruth Nankabirwa Ssentamu, Minister of Energy and Mineral Development of Uganda; Irene Bateebe, Permanent Secretary - Ministry of Energy and Mineral Development; and Aqueel Bohra, chief investment officer at the AMEA Power. There was also senior representative from local communities and members of Ministry of Energy & Mineral Development, Uganda Electricity Transmission Company Limited, the Electricity Regulatory Authority, the Ugandan Embassy to the United Arab Emirates, and other government and private energy sector agencies.

The investment for the US$19mn project financing was secured during COP28 from Emerging Africa Infrastructure Fund (EAIF). African Trade and Investment Development Insurance (ATIDI) is supporting the project via its Regional Liquidity Support Facility (RLSF).

A landmark solar project

Hussain Al Nowais, chairman of AMEA Power, remarked, “We are excited to begin construction on this landmark solar project in Uganda, marking a significant step forward in our commitment to expanding our footprint across East Africa. This project aligns perfectly with Uganda’s vision for a cleaner and more sustainable energy future, and we are confident that it will deliver substantial economic and environmental benefits for the country.”

Once commissioned – expected Q3 2025 – the plant will become AMEA Power’s first operational asset in the country and will be delivered in close cooperation with local communities as part of its commitment to socioeconomic development. Generating approximately 53,940MWh of clean energy per year, the plant is set to power more than 190,000 households and offset 26,600 tonnes of carbon emissions annually.

This news is the latest of a number of projects AMEA Power is undertaking on the continent. Recently, the company also brok ground at a new solar project in Tunisia, the details of which can be found by clicking here.

The transaction will give TotalEnergies an interest in hydropower projects in Uganda, Rwanda and Malawi. (Image source: Adobe Stock)

TotalEnergies, a global integrated energy company, is set to expand its hydropower portfolio through a strategic acquisition in Africa

The company has signed an agreement with Scatec to acquire its subsidiary SN Power, which holds interests in hydropower projects through a joint venture with Norfund and British International Investment.

“We are pleased to announce today’s transaction, as we believe TotalEnergies will be a strong asset owner going forward, with the ability to further develop the projects and contribute to the energy transition in Africa,” commented Terje Pilskog, CEO of Scatec. “We would like to thank the entire hydropower team for their hard work and dedication over the years, you have made a significant impact. In addition, our gratitude goes to our joint venture partners, host governments, and lenders for the support since 2020.”

The new agreement will further develop TotalEnergies hydropower portfolio (it holds interests in a number of projects across the globe with a gross capacity of 3.7GW worldwide), and complement its existing one in Africa where it already has 1.5GW under development in Mozambique (the Mphanda Nkuwa project).

As a result of the new transaction with Scatec, TotalEnergies will acquire a 28.3% stake in the Bujagali hydropower plant currently in operation in Uganda. With a capacity of 250MW, it covers more than 25% of the country's peak electricity demand. TotalEnergies will also acquire minority stakes in two projects under development in Rwanda (260MW) and Malawi (360MW).

“This acquisition of renewable hydroelectric assets and projects in Africa reflects our desire to contribute to the continent's energy transition by bringing electricity to the people of African countries,” remarked Patrick Pouyanné, chairman and CEO of TotalEnergies. “In particular, we are delighted to be able to become a player in hydro power in Uganda, a country where we are also developing a major oil project. This is another example of TotalEnergies’ ability to implement its multi-energy strategy in oil-producing countries to support them in their energy transition.”

Hydropower has traditionally formed the backbone of energy systems across the continent but is this beginning to change? Access the latest issue of African Review find out more.

There is growing potential for stream turbines to contribute towards a more sustainable energy future for South African industry. (WEG Africa)

WEG Africa is adding to the energy generating capacity at a Sappi Saiccor mill through the supply of a backpressure steam turbine as interest for the technology grows

Steam turbines provide a valuable opportunity for many industries to self-generate more of their own power requirements – and often from alternative fuels produced as a by-product of their processes. This technology offers benefits including energy cost reductions, more stable supply of power and a lower carbon footprint.

A leading South African firm taking advantage of these opportunities is Sappi Saiccor. Its mill at Umkomaas in KwaZulu-Natal is one of the world’s largest producers of dissolving pulp for viscose staple fibre – used mainly in the production of textiles but also in other household, industrial and pharmaceutical applications. Gas produced from this process represents a fuel source which generates steam for electricity production.

Versatile power supply

A 45 MW extraction backpressure steam turbine from WEG will be adding to Sappi Saiccor’s energy generating capacity at its MgO3 plant. The power generated will be used for internal consumption.

Steam turbine technology is also becoming increasingly versatile to accommodate the specific requirements of the facilities they serve. At the Sappi Saiccor mill, for instance, there is the need to have 15 different load points served by the turbine – where in the past it was usual to have just two or three load points.

It is now possible to provide many more load points – each one with its own inlet steam flow conditions. The steam turbine design can cater for a steam flow range that varies considerably. For the new unit at Sappi Saiccor, this range will be from 75 t/h to 300 t/h.

As the leading manufacturer of steam turbines in Brazil, WEG has supplied a number of units of this turbine model to customers in the market there. The company’s factory in Brazil will design and manufacture the new unit bound for South Africa, and WEG will conduct the installation, commissioning and ongoing maintenance next year. The Sappi Saiccor mill will also use a 50 MVA, 11 kV WEG alternator, which will be coupled to the steam turbine.

Providing the perfect solution

WEG receives regular enquiries from companies who operate boilers for their operations, looking for opportunities to reduce their operating costs while raising their production levels through a more reliable supply of electricity. The company can conduct an assessment of steam flows and pressures, to advise on the most suitable turbine size and the amount of energy they could generate internally.

WEG also has a depth of local expertise and supporting infrastructure to service steam turbines of various makes, and can provide maintenance contracts to give customers peace of mind. In addition to this, WEG offers its customers access to a complete set of spare parts, all of which promote high equipment availability levels.

This article is authored by WEG Africa. Click here to learn more on the company's website.

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