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The report analyzes four decarbonization pathways for California's cement sector, all incorporating carbon capture and storage (CCS) to address process emissions. Pathways involving limestone calcined clay cement (LC3) and alternative fuels (woody biomass or engineered municipal solid waste) demonstrate the lowest lifetime carbon abatement costs, around $100 per metric ton of CO2. In contrast, full electrification combined with CCS is the most expensive at $479 per metric ton. While all pathways significantly reduce emissions relative to a baseline, the report highlights that energy costs are the primary driver of lifetime expenses. Qualitatively, the transition to these technologies is expected to provide net air quality benefits by reducing SO2 and particulate matter, although amine-based CCS may slightly increase VOC emissions.

The report argues that India is uniquely positioned to lead in sustainable aviation fuel (SAF) production via the power-and-biomass-to-liquids (PBtL) pathway. By combining world-leading low-cost green hydrogen (driven by cheap solar power) with an abundance of surplus agricultural residue, India can produce SAF at costs significantly lower than global benchmarks. The analysis shows that PBtL is more resource-efficient and has a lower carbon intensity than other pathways like HEFA, ATJ, and BtL. The report projects that PBtL SAF could reach price parity with fossil aviation turbine fuel (ATF) in the 2030s, providing a hedge against crude oil price volatility and reducing air pollution from crop residue burning. It identifies regions around Delhi, Pune, and Mumbai airports as ideal for first-of-a-kind demonstration projects.

The report argues that many planned coal plants in low- and middle-income countries (LMICs) are candidates for reconsideration due to declining costs of solar and battery storage, evolving grid needs, and the risk of long-term financial lock-in. It introduces a five-indicator framework—fuel source, initiation date, sunk costs, designed grid role, and evolution of grid needs—to prioritize plants for reevaluation. RMI's analysis suggests that solar paired with battery energy storage systems (BESS) is increasingly cost-competitive with new ultra-supercritical coal, potentially offering a more affordable and flexible alternative for modernizing grids.

The report argues that industrial electrification in India is economically viable across all temperature ranges when powered by low-cost solar energy. It finds that switching to electric technologies like heat pumps and thermal batteries can reduce industrial energy use by 22% and cut CO2 emissions by over half. The analysis highlights that solar-powered electrification is already cheaper than petroleum and natural gas across all temperatures and competitive with coal in several bands. To scale this transition, the report recommends streamlining Green Energy Open Access rules, reducing electricity cross-subsidies, and implementing production-linked incentives for clean commodities.

RMI proposes five policies to accelerate heat pump adoption in Illinois: increasing incentives for heat pumps and weatherization while phasing out gas equipment subsidies, providing 0% financing, reforming electric and gas rate designs, implementing an AC-to-heat pump replacement policy, and adopting electric-friendly standards for new construction. The brief notes that while heat pumps can reduce energy bills for most Illinois households—particularly those using propane or electric resistance heat—high up-front costs remain a primary barrier.

The document evaluates the feasibility of fuel cell electric trucks (FCETs) and hydrogen internal combustion engine (ICE) trucks in India. It finds that while FCETs could be more cost-competitive than diesel trucks in long-haul, heavy-duty applications by 2040, they currently struggle to reach cost parity with battery electric trucks (BETs) due to high hydrogen fuel costs. These costs are driven by production, refueling infrastructure, and an 18% GST. The brief argues that hydrogen trucks are a critical complement to BETs for use cases requiring high payload and minimal downtime. It recommends a coordinated pathway involving capital subsidies, tax rationalization (reducing GST to 5%), and the development of public hydrogen refueling stations (HRS) to unlock the market.

India is positioning itself as a green hydrogen hub by designating ports like V. O. Chidambaranar (VOC), Paradip, and Deendayal for hydrogen projects. While domestic coastal corridors provide learning opportunities, they lack the scale to be commercially viable, with e-fuel demand on the VOC–Deendayal route estimated at only 19–20 kilotons annually. In contrast, an international corridor linking Rotterdam, India, and Singapore could unlock over 1 million tons of annual e-fuel bunkering demand by 2030. The document highlights that while green methanol vessels have a total cost of ownership (TCO) nearly 80% higher than conventional vessels, IMO incentives and India's low-cost e-fuel production could make ammonia-powered vessels more competitive, potentially reducing TCO by 16% to 28% on routes to Singapore and Rotterdam respectively.

The report evaluates CCUS as a primary decarbonization lever for India's steel sector, specifically targeting the emission-intensive BF-BOF route. It identifies single-point pre-combustion capture with gas conditioning as the most cost-effective technical approach, with a net CO2 abatement cost of USD 5560/tCO2. The study maps seven steel clusters in Eastern India and finds significant geological storage potential, primarily in deep saline aquifers (estimated at 62 Gt). To overcome high capital costs, the report proposes novel financing instruments like Partial Deep Discount Carbon STRIPS (PDDCS) bonds and the establishment of a Carbon Capture Finance Corporation (CCFC). It concludes that a breakeven carbon price of approximately INR 2,099 (USD 25)/tCO2 is necessary for project financial viability in a mature market.

Africa's nitrogen fertilizer consumption is 5.5x below the global average, leaving 50 million small family farmers at a disadvantage due to high costs and price volatility of imported 'gray' fertilizers. The report argues that Distributed Green Ammonia (DGA) production—which is modular, smaller, and compatible with intermittent renewable energy—can provide a cheaper, more resilient local supply. It highlights emerging technologies such as novel Haber-Bosch systems, plasma catalysis, chemical looping, and direct electrochemical conversion. A commercial modular plant by TalusAg in Naivasha, Kenya, is cited as a proof of concept producing fertilizer over 50% cheaper than imports. Scaling these solutions requires cheap clean electricity, demand aggregation through partners like One Acre Fund, and access to local currency debt to mitigate currency volatility.

Merchant BESS in India became financially viable in 2024 due to falling battery costs and increasing price volatility in the Day Ahead Market (DAM). The report finds that BESS can achieve internal rates of return (IRR) up to 24% by combining energy arbitrage with ancillary services, with shorter-duration systems (1-2 hours) currently offering better returns than 4-hour systems.

The report evaluates renewable energy options for a municipal water station in Ukraine serving 400,000 residents. It compares 100% decentralised systems (PV+Battery vs. Wind+Battery) and feasible grid-connected hybrid systems, finding that while wind is more cost-effective, solar PV is the only viable on-site installation due to space constraints. For heating, water-to-water heat pumps are identified as the optimal solution. The report also maps international financing opportunities from institutions like the EBRD, EIB, and World Bank to support implementation.

The report analyzes green hydrogen production in India, finding that state-level transmission waivers and capital subsidies are critical for cost competitiveness. It compares on-site, ISTS-connected, and STU-connected project models, highlighting that while on-site projects avoid transmission costs, they face land and demand constraints. The study identifies Odisha as a leader in cost competitiveness due to aggressive incentive packages and emphasizes that off-site projects require at least a 50% cost reduction to compete with grey hydrogen.

The report introduces the National Integrated Clean Cooking Planning (NICCP) for Rwanda, utilizing the Integrated Clean Cooking Planning Tool (ICCPT) and a financial model to assess paths toward clean cooking access. It compares two scenarios: the 'Aligned' plan, which follows current government ambitions, and the 'CleanStep' plan, which prioritizes rapid adoption by 2029 followed by economic recovery. Key findings indicate that while infrastructure deployment is necessary, affordability gaps—particularly in rural areas—remain a primary barrier. The CleanStep plan achieves higher adoption and better environmental outcomes by 2029, while the Aligned plan shows better health outcomes and lower long-term funding requirements by 2034. Both plans emphasize the potential of carbon credits and the need for combined pricing measures (subsidies on both appliances and fuels) to ensure sustainable transitions.

The report argues that achieving net-zero emissions requires a broad portfolio of zero-carbon technologies beyond wind and solar, including nuclear fission, fusion, and carbon capture. It introduces an Innovation Technology Framework based on the 'S curve' of innovation, which identifies critical development stages—R&D, early output, and commercialization—leading to 'market take-off.' The framework emphasizes four 'levers of success': lowering costs, speeding project deployment, easing access to financing, and removing ecosystem barriers. The authors advocate for a coordinated industrial policy that provides sustained public financial support until technologies reach the take-off point, typically defined as 1%-2.5% of global energy demand.

The document argues that China's industrial sector, which accounts for approximately 60 percent of hydrogen consumption, faces challenges regarding supply stability and high costs. To resolve these, it introduces a "cluster development" model that aligns production and consumption through a "production-storage-transportation-utilization" system. The model provides techno-economic analysis and implementation methods for both co-located and geographically separated supply and demand scenarios to accelerate the transition to low/zero-carbon industrial solutions.

The report presents the Industrial Zero Emissions Calculator (IZEC), an open-source Excel tool that allows stakeholders to visualize the electricity, hydrogen, bioenergy, and carbon capture and storage (CCS) needs required to achieve zero-emission industry. Focusing on U.S. scenario results, the report argues that direct electrification is the most energy-efficient pathway for industrial heat, while green hydrogen should be reserved for high-value feedstocks and steelmaking due to its inefficiency when burned. It highlights that heavy reliance on bioenergy or fossil-based CCS leads to prohibitive land use or capital costs, respectively. The authors emphasize that combining these technologies with energy and material efficiency improvements is critical to making industrial decarbonization feasible and cost-effective.

The report concludes that no single technology can achieve California's 2045 net-zero goal, requiring a diversified portfolio of electrification, carbon capture and storage (CCS), biofuels, hydrogen, and carbon dioxide removal (CDR). Key findings highlight a massive required grid expansion of 130–460 GW and the critical role of Direct Air Capture (DAC) to offset hard-to-abate emissions. The analysis suggests that while a 100% carbon-free grid is the current goal, a slightly lower constraint (e.g., 99%) could significantly reduce costs and overbuilding by allowing the use of clean dispatchable power like NGCCS.

The report assesses decarbonisation strategies for refineries across four major regions, focusing on Scope 1, 2, and 3 emissions. It evaluates technologies such as carbon capture, blue and green hydrogen, and the transition to biorefineries (specifically the HEFA process) or clean fuels facilities. Regional analysis shows that while the US and GCC benefit from cheap natural gas for blue hydrogen, Europe is trending toward green hydrogen imports and biorefinery revamps. Singapore's strategy is heavily influenced by its status as a global trading hub and its lack of domestic natural gas or carbon storage resources. The report concludes that energy efficiency projects are generally the most immediate and viable, while large-scale carbon capture and hydrogen transitions require significant policy support and infrastructure development to be economically feasible.

The document argues that superhot rock energy could be a ubiquitous, low-land-footprint renewable source capable of replacing fossil fuel generation. Preliminary modeling suggests that approximately 20% of U.S. land area has superhot rock potential at depths below 8 miles, with just 1% of this resource potentially providing 4.3 terawatts of energy capacity. The report highlights that the U.S. oil and gas sector's subsurface expertise could accelerate commercialization, and that mature plants could eventually offer electricity as low as $25-40 per MWh.

The document argues that superhot rock energy could provide a ubiquitous, low-land-footprint source of firm power in Europe. Preliminary modeling suggests that approximately 9% of Europe's land area has superhot rock potential at depths below 12.5 km, with just 1% of this resource capable of providing 2.1 terawatts of energy capacity. While not expected to meet 2030 climate goals, the technology could eventually replace fossil fuels, leverage existing oil and gas workforce expertise, and offer competitive electricity costs of $25-40 (USD) per MWh for mature plants. Realizing this potential requires significant public and private investment in deep drilling R&D, pilot projects, and new regulatory frameworks.