On October 16, 2013, the federal government decided to amend the Energy Saving Ordinance with the amendments to the Federal Council resolution of October 11, 2013. The changes were announced in the Federal Law Gazette on November 21, 2013. Most of the changes will come into force on May 1, 2014.
The revision of the Energy Saving Ordinance has its real origin in the Kyoto Protocol of 1997 and the associated goal of the federal government to achieve a nearly climate-neutral building stock by 2050. The content of the current decision is based on the EU directive on the overall energy efficiency of buildings (2010/31 / EU).
The EU directive actually stipulates that the state regulation should come into force by January 9, 2013. This appointment could not be kept. The term EnEV 2014 instead of EnEV 2012, which has been around for a long time in specialist circles, has now turned out to be correct.
As a verification procedure, DIN 4108 should be completely replaced by DIN 18599 in residential buildings. In the approved version of the EnEV, the verification procedure of DIN 4108 with DIN 4701-10 for residential buildings remains valid. With the so-called model building procedure, a simplified third “verification” procedure is even introduced.
The most important changes include:
- Homeowners will have to replace oil and gas heating systems installed before January 1, 1985 with modern heating systems by 2015. There are exceptions for many old systems.
- Tightening of the requirements for the primary energy demand of new buildings in one step by 25%, from January 1, 2016.
- Stricter requirements for the minimum quality of the building envelope in new buildings by an average of 20% from January 1, 2016.
- No increase in the requirements for the renovation of buildings.
- boilers that are more than 30 years old. may no longer be operated from 2015. Exceptions apply to owner-occupied houses.
- Obligation of the federal states to carry out random checks of the energy certificates, compliance with the EnEV new building requirements and reports on the inspection of air conditioning systems
- Model building method. Additional simplified verification procedure for residential buildings (tied to narrow criteria). Also called EnEV Easy.
The most important changes to the energy certificate are:
- Rescaling with indication of energy efficiency classes in the belt speedometer.
- Obligation to submit documents for rentals and sales through to mandatory information on energy efficiency in real estate advertisements.
If no valid energy pass is available at the time the advertisement is placed (meaning advertisements in commercial media of any kind), the information in accordance with EnEV 2014 need not be included in the advertisement. A valid ID must be present at the latest at the viewing appointment. The seller or the landlord is responsible for compliance with the obligation.
In the case of residential buildings, these mandatory details are:
- the type of energy certificate (energy requirement certificate or energy consumption certificate),
- the final energy requirement or final energy consumption value for the building stated in the energy pass,
- the essential energy sources for heating the building named in the energy pass,
- the year of construction stated in the energy pass and
- the energy efficiency class stated in the energy pass.
This information can be abbreviated if these abbreviations are clear or if there is an explanatory list in the publication.
Possible abbreviations are
Type of energy certificate
- Consumption certificate: V
- Requirement certificate: B
The energy demand or energy consumption value from the energy certificate scale in kWh / (m²a). (Section 16a Paragraph 1 No. 2 EnEV), e.g. 227.5 kWh
The main energy source (§ 16a Paragraph 1 No. 3 EnEV)
- Coke, lignite, hard coal: Ko
- Heating oil: oil
- Natural gas, LPG: gas
- District heating from heating plant or CHP: FW
- Firewood, wood pellets, wood chips: Hz
- Electrical energy (including heat pumps), electricity mix: E
Year of construction of the residential building (§ 16a Paragraph 1 No. 4 EnEV), built in 1996
Energy efficiency class of the residential building for energy certificates A + to H, e.g. D (see table) issued from May 1, 2014
The abbreviated compulsory components could be implemented as follows, taking into account all information: 123 kWh / (m²a), district heating from heating plant, year of construction 1963, energy efficiency class according to the above table V, 123 kWh, FW, year of construction 1963, D
In summary, it can be said that in the case of new buildings, the focus is on a moderate increase in requirements and, in the case of renovation measures, on incentives through the expansion and increase of funding measures. In politics there is also talk of a modernization offensive.
80 percent of Germans heat with outdated technology. Nevertheless, the EnEV 2014 only covers a few of these outdated heating systems. Around 11 million old low-temperature heating systems are not subject to the obligation to replace, but they are also not state-of-the-art. The Federal Association for Renewable Energy therefore criticized the EnEV as “ineffective”.