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Lukas is responsible for delivering Delta-ee's Heat Pump Research Service and also supports a range of client consulting projects. Lukas joined Delta-ee from the European Heat Pump Association (EHPA) where he managed the data collection and supported the editorial process of the annual statistical report as well as the organisation of the annual industry conference.

ISH 2019: The 10 key trends our experts expect to see for electrification, gas heating & the connected home

Next week Frankfurt Messe will open its doors for the 2019 edition of ISH, the leading HVAC trade fair in Europe. Some of Delta-ee’s experts in the field will attend the exhibition and we have asked them what they expect to see at this year’s trade fair. (To arrange a meeting please get in touch with the relevant contact shown below.)

Electrification of Heat & Heat Pumps (Contact: Cate Lyon, Lukas Bergmann)

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Germany's Heat Pump Market Grew 51% since 2015 – but can the party keep going?

Germany’s hydronic heat pump market has seen a couple of excellent years. Following growth rates of 18% in both 2016 and 2017 the market grew by another 8% in 2018, an increase of 51% over 2015. But is that party coming to an end? Many indicators are pointing in this direction.

Recap: A market both driven and held back by subsidies & regulations

Two factors drove the German heat pump market in the last three years: a change to the building regulations taking effect in 2016 as well as a change in subsidies in 2015. This combination created the perfect storm for heat pumps. But the success may be built on thin ice, as subsidy applications equivalent to 50-80% of all installations were made in 2017.

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Heat Pump Business Models – Could they enable market growth in retrofit?

The European heat pump (HP) markets are on the upturn. After half a decade of stagnation, the improving economic situation in many markets and changes in new build regulations have driven significant growth in 2015 and first results for 2016 suggest that this positive trend continued in many markets last year.

Yet, if we compare HP sales to the millions of fossil fuel boilers being sold in Europe every year, the HP market, and in particular the market for hydronic systems for space heating, is still niche. The prime reason for this is a set of barriers regarding the economic proposition for HPs in retrofit situations. Many markets are also facing a lack of installer expertise in & customer information about the technology. Together these issues lead to a lack of installer push and customer pull for the technology in many retrofit markets.

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Wave of new, renewed, and extended incentives to improve heat pump prospects in Europe

With renewable heat moving ever higher up the political agenda in Europe, heat pumps look to be benefiting already

Across Europe’s five largest heating markets (where almost 5 million heating systems, equivalent to more than 60% of the European total, are sold annually), there is a wave of renewed and extended support measures that look likely to improve the prospects for heat pumps.

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Summary of the 3rd Delta-ee Utilities & Heat Pumps Roundtable, organised in association with the ehpa

The 3rd edition of Delta-ee’s Utilities & Heat Pumps Roundtable, organised in association with the ehpa, united 40+ attendees from the utility and heat pump industries in Wiesbaden, Germany, on February the 12th 2015.

Being held in an open and participative style the event once again enabled and encouraged fruitful discussions about the potential synergies between these two players on the supply and the demand side of the energy market. Below you will find the key messages from each of the four sessions and links to more in-depth summaries of each topic:
  • Session 1 – Market context & outlook for heat pumps - The HP market is recovering and is expected to have entered a period of sustained growth over the next five years – with growth mainly driven by the residential new build sector. A breakthrough in the renovation market has yet to happen and the opportunity in the non-residential sector needs to be developed. Click here to read a summary of the presentations and discussion in session 1.
  • Session 2 – The value of “smart” to the customer and the HP supply chain - The knowledge and know-how around smart heat pumps is increasing, with many projects demonstrating that the technology can deliver important benefits in a decentralised energy system. But more needs to be done in order to overcome regulatory barriers and drive the introduction of flexible tariffs – enabling stronger business cases and customer propositions through capturing the value generated by heat pump flexibility. Click here to read a summary of the presentations and discussion in session 2.
  • Session 3 – Business to customer (B2C) business models: How to engage the - In order to realise the heat pump market potential one must choose a strategy which integrates the technical capabilities and economic proposition with the social requirements of each individual customer. New players bringing disruptive business models to the market and the evolution of the traditional sales channels can turn this insight into increasing heat pump sales. Click here to read a summary of the presentations and discussion in session 3.
  • Session 4 – Business-to-business: Potential, Solutions and Business Models - There is a large untapped potential for industrial and other non-residential heat pumps in Europe. Energy contracting models and performance guarantees are two propositions which have proved successful in unlocking the potential to date, and are expected to be increasingly important drivers for heat pumps to reach their potential in the non-residential market. Click here to read a summary of the presentations and discussion in session 4.

Organisations who attended our 2015 Utilities & Heat Pump Roundtable include:


  • ait-deutschland GmbH
  • Alliander
  • Avantigas
  • BDHO
  • boostheat
  • British Gas
  • Carel Deutschland GmbH
  • Chemours Deutschland GmbH
  • CSD Engineers
  • Daikin Europe NV
  • Danish Energy Agency
  • Danish Energy Association
  • DuPont
  • E.ON Technologies GmbH
  • EHPA
  • Emerson Climate Technologies
  • Eneco
  • eRisk Group
  • Fraunhofer ISE
  • Insero Energy
  • Jabil
  • Laborelec
  • National Grid
  • NIBE
  • Panasonic R&D Center Germany
  • ThermoLift
  • TNO
  • Vaillant Group
  • Viessmann Waermepumen GmbH
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Session 4 of the 3rd Delta-ee Utilities & Heat Pumps Roundtable – B2B: Potential, Solutions and Business Models

3rd Utilities and Heat Pumps Roundtable Programme

In the last session of the 3rd edition of Delta-ee’s Utilities & Heat Pumps Roundtable, organised in association with the ehpa,
focused on non-residential heat pumps in commercial and industrial applications.

Lukas Bergmann, Heat Pump Research Service Manager at Delta-ee introduced the session, concluding that non-residential heat pumps are currently still at the very beginning of their market development, but having a significant potential.

Philippe Nellissen, Product Manager Industrial Applications at Emerson Climate Technologies presented a study assessing the potential for an energy revolution through electrically driven compression heat pumps in industrial applications. About 70% of a total potential of 174 TWh of annual heat demand in the European industry could be met by electrically driven heat pumps available today, with the remaining 30% requiring the ability to reach flow temperatures >90°C – technology which is already under development.

Fabrice Rognon, Head of Energy Western Switzerland at CSD Engineers presented the significant opportunity for development of heat pumps in the non-residential sector. The most successful approach to switch commercial and industrial customers to heat pumps in Switzerland has proven to be energy contracting, as it provides the customer with the greatest convenience, by removing all responsibility for planning, installation, operation and maintenance from him. Remaining barriers hindering the market success of the technology are a lack of knowledge about and experience with heat pumps as solutions for the commercial and industrial market segments.

Dr. Alastair Hotchkiss, Heat Pump Specialist at British Gas Business Energy Performance presented a case-study on how the business energy services branch of British Gas successfully introduced ground-source heat pump technology to several very large supermarkets of one of the UK’s largest supermarket chains. Creating peace of mind through introducing safety nets was a key factor for getting management buy-in into the proposition both on the side of British Gas and the supermarket chain. Another key factor for convincing the customer was the development of a balance sheet neutral financing model based on energy contracting, which includes a performance guarantee to the customer as well as shared bonus and penalty payments if the guarantee is over or under fulfilled.

Views from delegates and the discussion…
  •        An equal number of participants of the Roundtable thought that during the course of 2015 between 50-100MW or 100-200MW of large scale heat pumps (>100kW per unit) will be installed in Europe.
  •        Informing, educating and supporting specifying engineers came out as one of the key actions required to achieve the potential of the non-residential heat pump market in the future.
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