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Everyone needs electricity and heat – but how to best organise transmission, distribution and storage? Go ahead and learn about the most intelligent designs and solutions!
Energy efficiency is key, both for the current building stock and for everything to be built from now on. Find out more about how the building stock can be made fit for future energy savings!
In tomorrow’s energy world, industries, commerce and agriculture use only a fraction of the energy they use today – with no negative effects on output.
Electromobility and new, alternative fuels are about to fundamentally change the transport sector. Find out more about the characteristics and prospects of these technologies!
In order to achieve an integrated energy system, power, heat and mobility need to be combined in a way that is both intelligent and sustainable. Take a look at relevant approaches in this field!
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SenerTec Kraft-Wärme-Energiesysteme GmbH – Fairways Apartments
The Project ‘Fairways Apartments’, located in Cualanor, Dun Laoghaire, Dublin County, was part of the technology showcase Energy Efficiency Awards which focuses on German energy efficiency technologies in Irish buildings
Introduction
SenerTec Kraft-Wärme-Energiesysteme GmbH integrated their previously designed engine into a heating system based on the principle of Combined Heat and Power, or CHP, and so the Dachs micro CHP was born. The Dachs delivers 5.5KW of electricity and 14.8KW of heat from the one gas supply and reaches an efficiency level of over 90%.
The apartments in this development are supplied with heat from a centralized heating system. Three Dachs micro CHP units – technology “made in Germany” by SenerTec GmbH – were installed as part of this system.
Glenergy Ltd, the Irish Partner of SenerTec GmbH, installed the first system in Ireland that combines boilers, CHP, and air source heat pumps to one single heating solution. It was implemented in all the Fairways Apartments. CHP and boilers traditionally work very well with each other, but heat pumps operate at much lower temperatures than CHP or boilers, which poses a challenge to make them all operate together. This challenge was met through innovative engineering design and control strategies so that all the different technologies seamlessly operate in unison to create the most efficient heating system. The CHP and heat pumps are also sized to complement each other i.e. each CHP electrical output is matched to the electrical demands of the respective heat pumps.
Due to this combination and unique use of the various energy efficient technologies in the Fairways centralized heating system, residents will enjoy exceptionally low heating and hot water bills. The estimated annual costs for heating and hot water amount to €450. The CHP units themselves will continue to deliver efficient heat and electricity for at least the next 15 years.
System Data
Technologies/Measures
Combined heating solution of boilers, CHP and air source heat pumps
Building Energy ratings
A2 (Building Energy Rating BER)
Nearly Zero Energy Building (NZEB)
Building Primary energy requirement
35kWh/ (m2/a)
CHP data
5.5 KW electricity
14.8 KW heat
90% efficiency
About the Energy Efficiency Awards
The Energy Efficiency Awards in Ireland were organized by the German – Irish Chamber of Industry and Commerce in October 2020. The awards show intended to promote successful German-Irish partnerships in the building sector. The five projects that have been selected show how innovative German energy-efficient solutions have led to increased building quality, reduced energy costs and lower CO2 emission levels in Irish buildings.
The online-event comprised three highly relevant presentations on the topic of energy efficiency in buildings by representatives from politics and industry, the presentations of the five German finalists, the official award ceremony and a concluding virtual networking event.
The Energy Efficiency Awards are part of the German Energy Solutions Initiative of the German Ministry for Economic Affairs and Energy to recognise the positive impact German energy efficiency technologies have on Ireland's efforts to become more energy efficient.