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This guide outlines six strategies for homeowners to save money and reduce carbon emissions during the COVID-19 crisis: optimizing thermostat settings, switching to LED lighting, scheduling appliance use during low-emissions periods, reviewing utility rate structures, planning for the removal of gas appliances, and improving indoor air quality by opening windows.

The policy brief contends that the proposed $1 billion Northeast Supply Enhancement Project (NESE) gas pipeline is incompatible with New York's Climate Leadership and Community Protection Act (CLCPA). It argues that a 'no infrastructure' approach—combining energy efficiency, electrification (specifically heat pumps), and demand response—is a more cost-effective and reliable path to meeting energy needs while reducing emissions. The author asserts that National Grid's cost analysis underestimates the benefits of customer-focused solutions by ignoring air conditioner cost savings, externality costs of pollution, and the long-term savings beyond a 15-year net present value calculation.

The report investigates the potential for a new on-tax financing model (EuroPACE) to drive deep energy efficiency retrofits in European residential buildings. It identifies significant market failures, such as long payback periods and knowledge gaps, that hinder private investment. Through analysis of four target countries and three successful case studies (Energiesprong, Oktave, and KfW), the document highlights that success depends on low-cost, long-term financing and the ability to aggregate demand. It projects a total lending potential for EuroPACE of nearly €4bn over ten years across the four primary countries, provided that penetration and renovation rates increase.

The report examines six specific policy cases from the UK, Netherlands, Sweden, Germany, and Austria to provide a roadmap for decarbonising the non-ETS transport and buildings sectors in CEE countries. It uses a participatory transferability assessment involving experts from Poland, Czech Republic, Slovakia, Hungary, Romania, and Bulgaria to identify regional barriers and opportunities for 'leap-frogging' to best practices.

The paper argues that well-designed on-bill financing programs remove financial barriers for low- and moderate-income (LMI) households by eliminating upfront costs and using utility payment history instead of credit scores for underwriting. It highlights that tying financing obligations to the utility meter rather than the individual allows renters and subsequent homeowners to benefit from upgrades, solving the 'split incentive' problem. The author presents two case studies: the Hawaii Green Energy Money Saver (GEM$) program, which focuses on solar PV and energy efficiency, and the Orcas Power and Light Cooperative (OPALCO) Switch It Up! program, which emphasizes beneficial electrification. Both programs report zero defaults in their first year of operation, demonstrating the viability of alternative underwriting and the use of loan loss reserves to manage risk.

The report finds that Rhode Island can feasibly reduce its greenhouse gas emissions by 70-80% by 2030, 2040, or 2050 by focusing on electrifying transportation and heating, improving energy efficiency, and transitioning the electricity grid to renewables. A critical finding is that updated science on methane leakage from natural gas infrastructure reveals that 2017 emissions were approximately 45% higher than previously estimated in 2016. While the 2050 pathway is relatively low-cost, the 2030 pathway requires a significant spending spike, resembling a 'Green New Deal' approach. The study emphasizes that reaching net-zero requires the complete phase-out of natural gas and further research into industrial decarbonization and carbon sequestration.

The report analyzes climate policy performance in the transport and buildings sectors across CEE countries, highlighting specific successful initiatives. In transport, it identifies Romania's 'Rabla' car scrappage scheme, Hungary's Jedlik Ányos Action Plan for electric vehicles, Poland's electric bus rollout, Slovakia's railway modernization, and the Czech Republic's integrated public transport laws as regional benchmarks. In the buildings sector, it highlights Romania's EIB-financed thermal insulation, Slovakia's long-term retrofit support, Poland's solar collector promotion, and the Czech Republic's heat pump subsidies. The document argues that these 'first mover' experiences can be transferred across the region to accelerate the low-emission transition.

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.

The report analyzes the consumption-based greenhouse gas emissions of Umeå residents, finding an average footprint of 9.77 tonnes CO2e per person for survey participants (aged 20-84), which scales to 7.6 tonnes CO2e per person for the total population. Travel, particularly aviation and car use, is identified as the primary emission source, followed by food. The report identifies 'hotspots' including meat consumption, aviation, and housing energy, and recommends administrative, economic, and informative policy tools to reduce these impacts.

The report finds that building electrification is generally cost-effective for new construction and for customers switching from propane or heating oil, but often more expensive for existing natural gas customers at current prices. It argues that electrification reduces carbon emissions in most US regions, except those heavily dependent on coal, though this is expected to change as coal plants retire. The authors emphasize that demand flexibility—shifting energy use to low-cost or high-renewable periods—can further improve economics and grid integration. Key recommendations include prioritizing the electrification of oil and propane homes, stopping the expansion of natural gas infrastructure, and updating energy efficiency standards to account for total energy reduction across fuels.

The report assesses the feasibility of solar thermal systems in South African hospitals, finding a total annual thermal energy demand of 370 GWh for domestic hot water. While current adoption is very low—with only 23 systems totaling 1,333 m² of collector area—the study suggests hospitals could feasibly meet 20% to 40% of their thermal needs through solar thermal capacity. A case study at Paarl Provincial Hospital indicates a potential internal rate of return (IRR) of 10% and a payback period of 12.3 years. However, widespread uptake is hindered by the prevalence of energy-efficient heat pumps, high upfront costs, and infrastructure challenges such as asbestos roofing and limited roof space.

Sweden has significantly reduced greenhouse gas emissions and fossil fuel use in heating, with fossil fuels now accounting for less than 5% of heating energy. However, the system remains locked into a supply-dominated model with limited focus on reducing heating demand. This creates tensions as the increase in waste incineration for heat and resistance to stricter building energy efficiency standards clash with EU directives and the long-term need to adapt to climate change and building renovations.

Sweden has significantly decarbonised its heating sector, with fossil fuels now accounting for less than 5% of heating energy. This was achieved through the expansion of district heating and heat pumps, supported by carbon taxes introduced in 1991 and a pragmatic approach to shared infrastructure. However, the system is now characterised by a 'supply-dominated' lock-in, where the focus remains on maintaining production rather than reducing demand. This is evidenced by high average indoor temperatures (21.2°C to 22.3°C) and resistance to more stringent energy efficiency standards. Additionally, an increasing reliance on waste incineration has led to over-capacity and a dependency on imported waste, potentially conflicting with EU directives. The report warns that rising temperatures from climate change and stricter EU energy performance requirements will further decrease heat demand, necessitating a shift toward demand-reducing technologies and increased integration of industrial waste heat.

Sweden has successfully transitioned its heating system to low-carbon sources, with fossil fuels now accounting for under 5% of heating energy. This was achieved through the expansion of district heating, which covers over 50% of the building stock, and the widespread adoption of heat pumps in single-family homes. However, the report identifies significant 'lock-ins' where the dominance of large suppliers and a focus on production over efficiency hinder further progress. Key challenges include a reliance on waste incineration, high indoor temperature norms, and resistance from industry players toward stricter building energy efficiency standards. The authors recommend shifting focus toward demand-reduction technologies and lowering barriers for third-party access to district heating networks to better integrate industrial waste heat.

The report analyzes Estonia's energy transition from a system heavily dependent on oil shale to one based on low-carbon sources by 2050. Using LEAP, Balmorel, and EMPS models, it evaluates four scenarios: Baseline (BAU), Carbon Neutral (CN), 100% renewable (RES), and 100% renewable with increased demand (RES+). Key findings highlight that while wind and biomass have significant potential, achieving a carbon-neutral sector requires phasing out oil shale by 2040, expanding interconnections with the Nordic Power System (specifically Sweden and Finland), and implementing policy reforms such as removing fossil fuel subsidies and increasing investment support for small-scale renewables and energy efficiency.

The report identifies a growing demand for energy-efficient construction in South Africa, driven by electricity price increases of over 200% since 2009 and the mandatory SANS 10400 XA regulations. It highlights significant opportunities in bulk insulation for public sector housing, estimated at over R9 billion over five years, and the rise of Light Steel Frame Building (LSFB) methods in residential and commercial sectors. The Western Cape is positioned as a strategic hub for green technology, supported by the Atlantis greentech Special Economic Zone (SEZ) and local government incentives.

The report analyzes how the EU 28 can decrease its reliance on natural gas imports through cost-effective energy efficiency and renewable energy deployment across the buildings, industry, and energy supply sectors. It argues that these measures can reduce the share of natural gas in primary energy demand to 16% by 2030, significantly outperforming the European Commission's proposed 2030 framework.

The 'Help My House' pilot project provided energy-efficient upgrades—including heat pumps, insulation, and air leak sealing—to electrical cooperative members in South Carolina at no upfront cost. Participants experienced significant reductions in monthly electric bills and improved home comfort. On average, participating houses reduced electricity use by 34 percent, resulting in an average annual saving of $288 after loan payments, with projected savings exceeding $1,100 annually once loans are repaid.

The Help My House (HMH) pilot program provided on-bill financing (OBF) for energy efficiency retrofits in 125 homes across eight South Carolina electric cooperatives. The program demonstrated that 'whole house' upgrades—primarily attic insulation, air sealing, and HVAC replacements—could reduce electricity use by an average of 34% (approximately 11,000 kWh per year), with energy savings typically exceeding the annual loan repayments. The pilot achieved a 93% realization rate compared to predicted savings and significantly increased member satisfaction, leading several participating cooperatives to launch their own ongoing OBF programs. While the retrofits reduced coincident peak demand, they had no net impact on the system load factor, suggesting that the simultaneous deployment of load control devices is necessary to improve system efficiency.

The report identifies heating oil as a significant economic and environmental drain on the Northeast U.S., costing the region over $14 billion annually. It compares natural gas and heat pumps as alternatives, concluding that heat pumps offer superior long-term economic savings and emissions reductions, particularly when paired with a renewable grid. The author identifies high upfront costs, lack of technical knowledge, and retrofit difficulties as primary barriers and suggests incentives, third-party financing, and leasing as solutions to scale the market.