‘Contradictory signal’: Germany scraps renewable heating law just as heat pumps gain momentum
‘Contradictory signal’: Germany scraps renewable heating law just as heat pumps gain momentum
Contradictory signal – Germany’s Cabinet has decided to abandon a proposed law that would have mandated households to switch from fossil-fuel boilers to eco-friendly alternatives. The original legislation, dubbed the Buildings Energy Act or the Heating Act, faced persistent backlash from opponents who worried it would compel families to invest heavily in new systems. The latest revision, unveiled on Wednesday, seeks to provide homeowners with more autonomy and ensure stability for construction firms, according to Economics Minister Katherina Reiche, who outlined the changes following the cabinet session. She emphasized that the “rigid” condition requiring new heating systems to rely on at least 65% renewable energy would be removed, alongside mandatory replacements or outright bans on certain technologies.
The reform also cancels the ban on oil and gas heating systems, which was gradually implemented since 2024. Critics, however, argue that this shift could undermine Germany’s climate goals. Jan Rosenow, an energy and climate policy expert at Oxford University, warned that the “significant weakening of core provisions… delays crucial choices and increases the cost and complexity of the transition.” He noted that the construction sector has already fallen short of its climate targets for years, and the new law risks prolonging this stagnation. Katherina Droege, leader of the Greens in parliament, who spearheaded the initial law in 2023, described the move as “a total rejection of Germany’s climate ambitions.”
The decision aligns with Chancellor Friedrich Merz’s coalition government’s efforts to stabilize its dwindling public support. Recent disputes over tax, pension, and welfare reforms have created uncertainty, prompting the administration to adopt a more pragmatic approach. The new Building Modernisation Act is framed as a “simpler, more adaptable” framework, prioritizing consumer choice and individual accountability while still aligning with climate objectives. According to a government statement, the revised law aims to “reinforce freedom of selection and personal responsibility” while maintaining environmental targets.
Germany has pledged to achieve climate neutrality by 2045, a goal that remains central to the updated legislation. Despite the law’s adjustments, the government maintains that the buildings sector will still need to reduce emissions. The new proposal allows gas and oil heating systems to continue in future projects, but requires households to gradually incorporate a higher share of “climate-neutral” fuels. Starting in 2029, these fuels—such as biofuels, biomethane, synthetic fuels, and renewable hydrogen—must make up 10% of the energy mix, increasing to 60% by 2040.
Industry groups have expressed cautious optimism about the revised law. Germany’s BDI industry federation praised the change as “a vital step toward restoring confidence in investment,” suggesting it could revive construction activity. However, climate advocates remain skeptical. While biofuels, derived from plant-based materials like food crops or agricultural waste, are presented as a sustainable alternative to fossil fuels, some experts caution that their production generates substantial emissions and contributes to deforestation. The use of biomethane and synthetic fuels, they argue, is impractical given their limited availability and high cost. Rosenow noted that these resources are “essential for industries and other sectors,” and diverting them to extend the lifespan of fossil heating systems could “delay fundamental structural changes.”
The revised law is set to be finalized before the end of 2026. It also incorporates the EU’s mandate that all new buildings must be zero-emission by 2030. If assessments in 2030 reveal that the construction sector has not met its climate goals, the government has vowed to adjust the law accordingly. This flexibility, however, has sparked debate about whether it weakens the long-term commitment to decarbonization.
Heat pumps on the rise amid policy shift
The timing of the law’s revocation has drawn particular scrutiny, as heat pumps are increasingly outpacing gas boilers in popularity. Homeowners are turning to these systems to mitigate the financial risks of fluctuating gas prices, especially in the context of ongoing geopolitical tensions. In 2025, heat pumps accounted for nearly half (48%) of all new heating systems installed, with over 299,000 units sold. The European Heat Pump Association (EHPA) reported a 34% surge in first-quarter 2026 sales compared to the same period in 2025, underscoring the growing demand for alternative heating solutions.
Rosenow, who highlighted this trend, stated that the reform sends “a conflicting message” at a critical juncture. “Heat pumps are already gaining substantial traction,” he observed. “With expanded production capacity, trained professionals, and robust supply chains, many households are embracing eco-friendly choices voluntarily. At this point, weakening the policy could discourage further progress.” He urged policymakers to “learn from crises, not wait for the next one,” emphasizing the need for decisive action to meet climate targets without hesitation.
The removal of the 65% renewable energy requirement has been criticized as a setback for Germany’s climate strategy. While the new law allows continued use of fossil fuels, it still mandates a gradual shift toward cleaner alternatives. This balance between flexibility and ambition has sparked mixed reactions. Some view the reform as a necessary compromise to address immediate economic concerns, while others see it as a missed opportunity to accelerate the transition to renewable energy.
Reiche defended the changes, stating that the revised law would “promote investment security” for construction companies. By easing restrictions on oil and gas heating, she argued, the government could stimulate economic growth and prevent disruption in the housing market. However, environmentalists contend that this approach risks prolonging reliance on fossil fuels. They point to the current momentum of heat pumps as evidence that a more aggressive policy could have been more effective in driving adoption.
As the new law moves forward, its impact on Germany’s climate trajectory will be closely monitored. The decision to phase out the stringent renewable energy mandates raises questions about the country’s ability to meet its 2045 neutrality goal. While the Buildings Energy Act aims to streamline the transition, critics warn that its diluted requirements may create confusion and slow progress. The challenge now lies in ensuring that the revised framework supports both economic resilience and environmental progress without compromising either.
“The timing is particularly critical: heat pumps are currently gaining significant momentum,” says Rosenow. “Production capacity has been expanded, skilled workers trained, supply chains strengthened. Many homeowners are already voluntarily choosing climate-friendly solutions. At this stage, the reform sends a contradictory signal.”
