The blanket 65% renewable energy requirement for all new and existing buildings is abolished.
GEG Reform — Gebäudemodernisierungsgesetz (GModG) 2026
The Gebäudemodernisierungsgesetz 2026 abolished the central element of the 2023 Heizungsgesetz: the mandatory 65% renewable energy share for heating replacements. The Merz coalition government argued the reform restored technology neutrality and relieved citizens of €5.1 billion annually; the Greens and Die Linke warned of a fossil heating cost trap and constitutional violations. This graph structures that argument: government claims and opposition positions, each linked to its source in BT-Drs. 21/6278 and 21/7009.
Source: Bundestag DIP Vorgang 334923 · Attribution: Deutscher Bundestag/Bundesrat – DIP
Chronologie
Zeitliche Abfolge: Behauptungen aus den Parlamentsdokumenten → namentliche Abstimmung.
- 8. Jun. 2026
- 8. Jul. 2026
Beziehungsgraph
Beziehungsgraph
Behauptungen (Kreise), Akteure mit Abstimmungsverhalten (Quadrate — grün = Ja, rot = Nein) und Lobbyverbindungen (Rauten). Knoten ziehen, Mausrad zum Zoomen, Klick auf Akteur öffnet Profil.
14 Knoten · 16 Kanten
Live claim graph
Live claim graph
- empirical
Für Bürgerinnen und Bürger entsteht im Saldo eine jährliche Entlastung von rund 5,1 Milliarden Euro — bestätig
BT-Drs. 21/6278 p.137 - contradictsempirical
Der Wegfall der 65-Prozent-Erneuerbare-Pflicht treibt Millionen Menschen in eine fossile Heizkostenfalle — Hau
BT-Drs. 21/7009 p.167 - empirical
Neu eingebaute Gasund Ölheizungen müssen ab 1. Januar 2029 mindestens 10 % Biokraftstoff verwenden; dieser Ant
BT-Drs. 21/6278 p.98 - contradictsempirical
Für ein Einfamilienhaus brauche man ein halbes Fußballfeld Ackerfläche, um den benötigten Biokraftstoff herzus
BT-Drs. 21/7009 p.167 - contradictsnormative
Das GModG sei eine Mogelpackung und eine Kostenfalle: Wo die Biokraftstoffe für die Biotreppe herkommen sollen
BT-Drs. 21/7009 p.167 - normative
§ 42 nennt einen technologieoffenen Katalog mit allen möglichen Heizungsoptionen und schafft Offenheit für Inn
BT-Drs. 21/6278 p.76
live data · /api/v1/graph/geg-reform
Contested claims
(6)
Contested claims
(6)Each pair shows a claim and the documented challenge to it — both linked to their primary-source Drucksachen.
Citizens gain a net annual relief of approximately €5.1 billion — confirmed by the Normenkontrollrat (NKR); industry is relieved of approximately €2.5 billion per year.
BT-Drs. 21/6278 p.137Abolishing the 65% renewables mandate drives millions of people into a fossil heating cost trap — households now installing gas or oil heating will face rising CO₂ costs long term.
BT-Drs. 21/7009 p.167Newly installed gas and oil heating systems must use at least 10% biofuel from 1 January 2029, rising to 15% (2030), 30% (2035), 60% (2040), and 100% climate-neutral fuels from 2045.
BT-Drs. 21/6278 p.98A single-family home would need half a football field of agricultural land to produce the required biofuel — the Bio-Staircase is therefore simply not scalable.
BT-Drs. 21/7009 p.167Newly installed gas and oil heating systems must use at least 10% biofuel from 1 January 2029, rising to 15% (2030), 30% (2035), 60% (2040), and 100% climate-neutral fuels from 2045.
BT-Drs. 21/6278 p.98The GModG is a deceptive package and a cost trap: where the biofuels for the Bio-Staircase are supposed to come from is completely unanswered; the coalition is shifting the supply risk onto citizens.
BT-Drs. 21/7009 p.167Newly installed gas and oil heating systems must use at least 10% biofuel from 1 January 2029, rising to 15% (2030), 30% (2035), 60% (2040), and 100% climate-neutral fuels from 2045.
BT-Drs. 21/6278 p.98Abolishing the 65% renewables mandate drives millions of people into a fossil heating cost trap — households now installing gas or oil heating will face rising CO₂ costs long term.
BT-Drs. 21/7009 p.167§ 42 provides a technology-neutral catalogue of all heating options, creating openness for innovation — gas, oil, heat pumps, district heating, and biomass remain equally permitted.
BT-Drs. 21/6278 p.76The 2023 GEG was already a better law that — unlike the GModG — protected the climate in a constitutionally compliant way. Multiple expert witnesses raised serious constitutional concerns about the GModG.
BT-Drs. 21/7009 p.167The heating and buildings sector is one of the biggest challenges for climate protection and is responsible for one-third of Germany's greenhouse gas emissions; rolling back the renewables mandate is climatically irresponsible.
BT-Drs. 21/7009 p.163Abolishing the 65% renewables mandate drives millions of people into a fossil heating cost trap — households now installing gas or oil heating will face rising CO₂ costs long term.
BT-Drs. 21/7009 p.167Proceeding Timeline
(2)
Proceeding Timeline
(2)Primary-source documents confirmed from dserver.bundestag.de. PDFs stored unaltered (amtliche Werke §5(2) UrhG).
- 2026-06-08BT-Drs. 21/6278Gesetzentwurf· Bundesregierung5 claims
Entwurf eines Gesetzes zur Änderung des Gebäudeenergiegesetzes, zur Änderung des Gebäude-Elektromobilitätsinfrastruktur-Gesetzes und zur Änderung weiterer Vorschriften im Wärmebereich (Gebäudemodernisierungsgesetz – GModG)
- 2026-07-08BT-Drs. 21/7009Beschlussempfehlung + Bericht· Ausschuss für Wirtschaft und Energie5 claims
Beschlussempfehlung und Bericht des Ausschusses für Wirtschaft und Energie (9. Ausschuss) zu dem Gesetzentwurf der Bundesregierung — Drucksache 21/6278 —
Actors with Wired Claims
(4)
Actors with Wired Claims
(4)Entity-claim links are pattern-derived (status=hypothesis). Named speaker attribution needs analyst review.
Bundesregierungorg · Bundesregierung5claims
AfDorg · AfD2claims
Bündnis 90/Die Grünenorg · Grüne2claims
Voting record
Voting record
Interessenlage · Who benefits?
Interessenlage · Who benefits?
Wer lobbyiert? · Who lobbies?
Wer lobbyiert? · Who lobbies?
Empirical Claims
(7)
Empirical Claims
(7)Disputed facts, data, and forecasts extracted from the GModG Drucksachen.
From 1 January 2030, all new residential buildings must be constructed as zero-emission buildings — no on-site greenhouse gas emissions from fossil fuels. New non-residential public buildings are subject from 2028.
Newly installed gas and oil heating systems must use at least 10% biofuel from 1 January 2029, rising to 15% (2030), 30% (2035), 60% (2040), and 100% climate-neutral fuels from 2045.
Citizens gain a net annual relief of approximately €5.1 billion — confirmed by the Normenkontrollrat (NKR); industry is relieved of approximately €2.5 billion per year.
The heating and buildings sector is one of the biggest challenges for climate protection and is responsible for one-third of Germany's greenhouse gas emissions; rolling back the renewables mandate is climatically irresponsible.
Abolishing the 65% renewables mandate drives millions of people into a fossil heating cost trap — households now installing gas or oil heating will face rising CO₂ costs long term.
A single-family home would need half a football field of agricultural land to produce the required biofuel — the Bio-Staircase is therefore simply not scalable.
Normative Claims
(3)
Normative Claims
(3)Disputed values and principles — technology neutrality, climate protection obligation, constitutional compliance.
§ 42 provides a technology-neutral catalogue of all heating options, creating openness for innovation — gas, oil, heat pumps, district heating, and biomass remain equally permitted.
The 2023 GEG was already a better law that — unlike the GModG — protected the climate in a constitutionally compliant way. Multiple expert witnesses raised serious constitutional concerns about the GModG.
The GModG is a deceptive package and a cost trap: where the biofuels for the Bio-Staircase are supposed to come from is completely unanswered; the coalition is shifting the supply risk onto citizens.