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Technical and economic pre-feasibility of biomass waste utilization for production of sustainable aviation fuel by PetroSA
The study evaluates the feasibility of supplying 300 million litres of ethanol annually to PetroSA's Conversion of Olefins to Distillate (COD) plant. It compares three primary feedstock pathways: first-generation (1G) molasses, second-generation (2G) lignocellulosic biomass (primarily invasive alien plants and garden waste), and third-generation (3G) industrial off-gases. The analysis finds that molasses-based ethanol is the most cost-effective and carbon-efficient option, while lignocellulosic ethanol is the most expensive due to high acquisition and processing costs. However, the report suggests that a diversified sourcing strategy incorporating invasive alien plants (IAPs) could meet broader socio-economic goals, such as job creation and drought resilience, at an additional cost of approximately R1 billion per year.
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Document type: Report
AGRICULTURAL PRODUCTIVE USE STIMULATION IN NIGERIA: VALUE CHAIN & MINI-GRID FEASIBILITY STUDY
The report identifies immediate opportunities to electrify agricultural processing in Nigeria, categorizing activities into three tiers of readiness. Tier 1 activities—cassava grating, rice milling, and flour milling—are deemed immediately viable, capable of reducing mini-grid tariffs by up to 26% if all three are implemented. The study proposes the 'Facilitator Model' for Tier 1 and the 'Processing Center Model' for Tier 2 to address barriers such as lack of credit and reliable electricity. A deployment strategy is recommended to unlock commercial finance through credit guarantees and grants, with an estimated national investment of under $30 million required for Tier 1 activities.
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Document type: Report
National framework for leapfrogging to Energy Efficient Appliances and Equipment in Namibia (Refrigerators and Distribution Transformers) through regulatory and financing mechanism
The proposal outlines a plan to implement Minimum Energy Performance Standards (MEPS) and labelling schemes for refrigerators and distribution transformers in Namibia to reduce electricity losses and GHG emissions. It requests USD 328,755 over 18 months to conduct market analysis, form policy and technical committees, develop national roadmaps, and identify financing mechanisms. The project aims to mitigate the impact of growing electricity demand and high energy losses, which currently burden the government budget due to electricity subsidies.
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Document type: Report
THE ECONOMICS OF ZERO-ENERGY HOMES
The report finds that the incremental cost of building ZER homes is modest, averaging 1.8%, while ZE homes average a 7.3% premium. These costs often fall below consumer willingness-to-pay and mortgage-savings thresholds. The analysis identifies heat pumps, LED lighting, and ENERGY STAR appliances as cost-optimal measures and projects that ZE incremental costs will drop to 3.1%–5.5% by 2030 due to declining solar PV costs and efficiency gains. It emphasizes the need for skilled labor training and supportive policy frameworks to accelerate adoption across various US climate zones.
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Document type: Report
Hydrogen steelmaking for a low-carbon economy
The report analyzes the HYBRIT process, which replaces coal with hydrogen for the direct reduction of iron ore combined with an electric arc furnace to create fossil-free steel. While technically feasible and potentially cost-competitive depending on electricity and carbon prices, the transition faces systemic barriers including high investment risks, the need for large-scale electrolysis infrastructure, and the risk of carbon leakage in a globally competitive market.
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Document type: Research paper
Farm Torque: electric orchard tractors
The report argues that electric orchard tractors are well-suited for the low-speed, high-torque requirements of South African horticultural farms, particularly in the citrus industry. It estimates a potential market of 1,480 electric tractors by 2030, which could save up to 5,200 tonnes of CO2 annually if powered by renewable energy. While initial capital costs are higher than diesel alternatives, the report identifies a payback period of less than six years due to lower fuel and maintenance costs. It further proposes a local manufacturing model developed by Nelson Mandela University, suggesting that producing 300 units annually by Year 5 could create 53 direct jobs.
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Document type: Report
Renewable Energy: Facts and Futures
The report examines South Africa's renewable energy landscape, highlighting the success of the Renewable Energy Independent Power Producer Procurement Programme (REI4P) in attracting R195 billion in investment and creating 26,790 jobs. It argues that South Africa possesses world-class solar and wind resources that could allow for a 70% renewable energy share by 2040, reducing costs and emissions. However, the document identifies significant barriers, primarily the state utility Eskom's reluctance to sign power purchase agreements and a historical path-dependency on coal. It also discusses the rise of rooftop photovoltaics and the necessity of a 'just transition' to protect workers in the coal sector.
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Document type: Report
DEVELOPING THE SAINT LUCIA ENERGY ROADMAP
The National Energy Transition Strategy (NETS) for Saint Lucia identifies an optimal energy portfolio consisting of solar, wind, energy storage, energy efficiency, and existing diesel generation. This combination is projected to reduce diesel expenditures by 42% and carbon emissions by 40% by 2025. The report emphasizes that utility ownership generally leads to lower customer rates and that energy efficiency is the most cost-effective resource for minimizing system costs. While geothermal energy offers significant base-load potential, its viability depends on concessional financing and successful exploration. The strategy also highlights the need for regulatory reform, specifically decoupling utility revenues from sales to incentivize energy efficiency and avoiding 'rate shock' associated with certain independent power producer (IPP) arrangements.
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Document type: Report
Strategies for Development of Green Energy Systems in Mongolia
The report analyzes Mongolia's energy transition using four scenarios: a coal-heavy reference case, a 'recent plans' case, an 'expanded green energy' case, and a 'shift in energy export' case. It finds that aggressive energy efficiency and renewable energy deployment could halve territorial GHG emissions by 2035 and reduce overall energy demand by 32% compared to the reference scenario. The study highlights the potential for Mongolia to shift from exporting coal to exporting renewable electricity to Northeast Asia, which would significantly reduce extraction-based emissions and mitigate the economic risk of 'carbon entanglement'.
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Document type: Report
Superhot Rock Geothermal in Angola
The document highlights that just 1% of Angola's estimated superhot rock geothermal resource could provide 197 GW of energy capacity, far exceeding the country's projected 2050 electricity demand of 62,933 GWh. It argues that this technology could replace fossil fuels in the electricity sector, reducing emissions by approximately 4 megatonnes of CO2eq, while utilizing significantly less land than solar, wind, or biomass. Additionally, the report suggests that Angola's existing oil and gas workforce and subsurface expertise could facilitate a transition to this zero-carbon energy source to address energy poverty and low electrification rates in rural areas.
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Document type: Fact sheet
appendix_a-95b40c0bef8b6fbb.pdf
The document argues that post-combustion carbon capture is a mature technology capable of achieving capture rates of 90% to 99% for coal and natural gas power plants. It provides evidence from existing operational plants, ongoing FEED studies, and techno-economic modeling to demonstrate that CCS is economically viable, particularly when supported by the U.S. 45Q tax credit. The report also details the availability of vast geologic storage capacity in saline aquifers and the existing regulatory framework for safe CO2 injection. Additionally, it examines co-benefits such as the reduction of SO2 and NOx emissions, the impact of different cooling technologies on water consumption, and the operational flexibility of CCS-equipped plants.
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Document type: Report
Superhot Rock Geothermal in Azerbaijan
The document highlights that just 1% of Azerbaijan's estimated superhot rock geothermal resource could provide 94 GW of energy capacity, far exceeding the country's 2021 electricity consumption of 27,885 GWh. This resource could theoretically replace all fossil fuels used in Azerbaijan's electricity production, reducing emissions by approximately 13 megatonnes of CO2eq, which represents 41% of the nation's Nationally Determined Contribution (NDC) goal. The report emphasizes the technology's low land footprint—requiring roughly 12 km² per 1 GW—and its ability to leverage existing subsurface expertise from Azerbaijan's oil and gas sector.
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Document type: Fact sheet
Superhot Rock Geothermal in Brunei
The document highlights that just 1% of Brunei's estimated superhot rock geothermal resource could provide 9 GW of energy capacity, generating over 71,162 GWh of electricity. This amount is approximately 12 times Brunei's 2021 electricity consumption of 5,698 GWh. Utilizing this resource could theoretically replace all coal and gas used for electricity production, reducing carbon emissions by about 5 megatonnes, which represents 77% of Brunei's Nationally Determined Contribution (NDC) goal of 5.9 megatonnes by 2030. Additionally, the technology is noted for its low land footprint, requiring roughly 12 km² per 1 GW, and its potential to leverage existing subsurface expertise from Brunei's oil and gas sector.
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Document type: Fact sheet
Superhot Rock Geothermal in Cambodia
The document highlights that just 1% of Cambodia's estimated superhot rock geothermal resource could provide 304 GW of energy capacity, far exceeding the country's 2021 electricity consumption of 10,156 GWh. This resource could theoretically replace all coal and electricity imports, reducing electricity sector emissions by approximately 4 megatonnes of CO2eq. Superhot rock geothermal is presented as a land-efficient alternative to other renewables, requiring roughly 12 km² per 1 GW, and as a means to foster socio-economic development through job creation and foreign investment.
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Document type: Fact sheet
Superhot Rock Geothermal in China
The document highlights that just 1% of China's superhot rock geothermal resource could provide 10,513 GW of energy capacity, potentially replacing all fossil fuels used for electricity production and reducing carbon emissions by approximately 5,943 megatonnes. It argues that this energy source offers a low land-use footprint, provides reliable 24/7 power, and allows for a transition of the existing oil and gas workforce into the zero-carbon sector.
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Document type: Fact sheet
Superhot Rock Geothermal in Ecuador
The document highlights that just 1% of Ecuador's estimated superhot rock geothermal resources could provide 35 GW of capacity, far exceeding the country's 2021 electricity consumption of 32,124 GWh. It argues that this technology could replace fossil fuel power generation, reduce electricity sector emissions by approximately 4 megatonnes of CO2eq, and leverage existing subsurface expertise from the oil and gas sector.
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Document type: Fact sheet
Superhot Rock Geothermal in Kazakhstan
The document highlights that just 1% of Kazakhstan's superhot rock geothermal resource could provide 257 GW of energy capacity, generating over 2,136,401 GWh of electricity. This amount is 19 times the country's 2021 electricity consumption and could theoretically replace all coal and gas used for electricity production. The technology is described as a land-efficient, 24/7 renewable energy source that could leverage Kazakhstan's existing oil and gas subsurface expertise for a zero-carbon transition.
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Document type: Fact sheet
Superhot Rock Geothermal in Kenya
The document highlights that just 1% of Kenya's superhot rock geothermal resource could provide 131 GW of energy capacity, far exceeding the country's projected 2050 electricity demand of 63,694 GWh. It argues that this technology could replace coal imports, reduce land-use footprints compared to other renewables, and leverage Kenya's existing geothermal expertise to foster economic growth and decarbonization.
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Document type: Fact sheet
Superhot Rock Geothermal in Myanmar
The document highlights that just 1% of Myanmar's estimated superhot rock geothermal resource could provide 413 GW of energy capacity, far exceeding the country's 2021 electricity consumption of 19,636 GWh. This resource could theoretically replace all coal and gas used for electricity production, reducing emissions by approximately 9 megatonnes of CO2eq and eliminating the need for coal imports, 45% of which currently come from Russia. Additionally, the technology is noted for its low land footprint—requiring roughly 12 km² per 1 GW—and its potential to leverage existing subsurface expertise from Myanmar's oil and gas sector.
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Document type: Fact sheet
Superhot Rock Geothermal in New Zealand
The document highlights that just 1% of New Zealand's superhot rock geothermal resource could provide 72 GW of capacity, far exceeding the country's 2021 electricity consumption of 44,606 GWh. This resource could theoretically replace all coal, oil, and gas used for electricity production, reducing emissions by approximately 6 megatonnes of CO2eq and enhancing energy security by replacing coal imports, primarily from Indonesia. Additionally, superhot rock geothermal is noted for its low land footprint, requiring roughly 12 km² per 1 GW, and its ability to leverage New Zealand's existing conventional geothermal expertise.
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Document type: Fact sheet