Presse Information - Bosch Media Service

Transcription

Press Release
Bosch Thermotechnology has good start to the new year
Growth prospects for eco-friendly technologies
 Bosch Thermotechnology held its ground in a difficult year
 2009 sales revenues only 4% below record level of the prior year
 Renewable energies account for 15% of total sales
Wetzlar/Stuttgart – Bosch’s Thermotechnology division had a good start to the
year 2010. While the effects of the economic crisis can still be felt, there have
been clear signs of a recovery. Sales revenues in the Asian emerging markets
and the key Western European markets picked up in the first three months of the
year. Moreover, the drop in demand in Central and Eastern Europe has been
halted since the beginning of the year. “Our performance in the difficult year 2009
shows that our fundamental positioning is right,” Uwe Glock, President of the
Board of Management of the Thermotechnology Division, said at the press
conference in Stuttgart.
Positive result generated
At EUR 2.87 billion, sales revenues in 2009 were down by approx. 4% (2% in
exchange rate-adjusted terms) on the record level of the previous year. As Bosch
Thermotechnology anticipated the economic downturn at an early stage, the
division initiated a number of counter-measures and therefore generated a
positive result in spite of the moderate decline in sales. At over 13 000, the
headcount slightly exceeded the prior year level at the end of the year as a result
of the acquisitions made in 2009.
Demand in Eastern Europe and North America declined markedly in the past
year. Business in Bosch Thermotechnology’s key markets, i.e. the UK, the
Netherlands, Spain and France, also fell short of the prior year level, albeit only
slightly. Sales revenues in Germany were moderately higher than in the previous
year, as the government’s market incentive programme and, in particular, the
bonus for heating replacements helped to stabilise total demand.
Although house owners invested less money in energy-efficient heating
technology last year in view of lower energy prices, Bosch Thermotechnology
Bosch Thermotechnik GmbH
[email protected]
Communications
Sophienstr. 30-32
Phone +49 6441 418-1711
Fax
+49 6441 418-1905
Vice President: Dr. Ingo Rapold
D-35576 Wetzlar
www.bosch-thermotechnology.com
May 5, 2010
PI 7041
reported strong growth in solar thermal systems. The renewable energy business
accounts for 15% of total sales. In the coming years, the division will continue to
expand its activities surrounding systems for the use of renewable energies and
energy-efficient solutions. The focus will be not only on private users but
increasingly also on commercial and industrial customers. The acquisitions of
Loos, a leading European supplier of highly efficient steam and hot water boilers,
and Köhler&Ziegler, a manufacturer of combined heat and power plants, have
added new eco-friendly technologies to the portfolio of Bosch Thermotechnology
and helped the division to expand its market position in the commercial and
industrial segment significantly.
Investments in technologies of the future remain a top priority
Bosch Thermotechnology is cautiously optimistic about the year 2010. “Cutting
C0 2 emissions is a key issue across the globe, and there is certainly a need for
action as regards environmental protection. Bosch Thermotechnology has the
systems and solutions that are required to tackle these problems in the building
sector. This means that the long-term growth prospects for our business remain
good,” said Uwe Glock. Investments in technologies of the future will remain a top
priority. At EUR 131 million, investments in the future held steady at the prior year
level even in the crisis year 2009. Research and development accounted for EUR
94 million, while an amount of EUR 37 million was invested in property, plant and
equipment.
Press contact:
Dr. Ingo Rapold
Silke Bartels
Phone +49 6441 418-1739
Phone +49 6441 418-1711
Bosch Thermotechnology is a leading supplier of resource-efficient heating products and hot
water solutions in Europe. In fiscal 2009, the company generated sales of 2.87 billion euros (66
percent outside Germany) and employed approx. 13,000 people. Bosch Thermotechnology has
strong international and regional brands and manufactures a diversified product range in 21
plants in 11 European, North American and Asian countries.
For more information, visit www.bosch-thermotechnik.de
The Bosch Group is a leading global supplier of technology and services. In the areas of
automotive and industrial technology, consumer goods, and building technology, some 275,000
associates generated sales of 38.2 billion euros in the areas of automotive and industrial
Seite 2 von 3
technology, consumer goods, and building technology in fiscal 2009. The Bosch Group
comprises Robert Bosch GmbH and its more than 300 subsidiaries and regional companies in
over 60 countries. If its sales and service partners are included, then Bosch is represented in
roughly 150 countries. This worldwide development, manufacturing, and sales network is the
foundation for growth. Each year, Bosch spends more than 3.5 billion euros for research and
development, and applies for some 3,800 patents worldwide. With all its products and services,
Bosch enhances the quality of life by providing solutions which are both innovative and
beneficial.
For more information, visit www.bosch.com.
Seite 3 von 3
Bosch Thermotechnology
Changing Markets
Uwe Glock, President of the Board of Management of the Thermotechnology Division
Press conference in Stuttgart
Bosch Haus Heidehof on 5 May 2010
Thermotechnology
TT/COM | 05.05.2010 | © Alle Rechte bei Robert Bosch GmbH, auch für den Fall von Schutzrechtsanmeldungen. Jede Verfügungsbefugnis, wie
Kopier- und Weitergaberecht, bei uns.
Strategic orientation
Thermotechnology Division
Heating

Hot water
Ventilation,
Decentralised
Air-conditioning energy management
Our heating, cooling, ventilation, A/C, hot water, steam & power products offer
energy-efficient solutions for each specific performance requirement.

Our systems cover all areas of application from private households to
large industrial plants.
Thermotechnology
2
Vision of Bosch Thermotechnology
World-leading supplier of energy-efficient, environmentally friendly and
innovative solutions for heating, hot water comfort and decentralised
energy management

Profitable growth – internal and external

Strong brands with excellent products and services for residential and nonresidential buildings
Portfolio expansion
Renewable systems
Internationalisation
Thermotechnology
3
Energy Plus Home
Business performance 2009
Solid performance in a challenging market
environment
Sales

€ 2.87 billion
Share of renewable systems
 15%
Research and development
 € 94 million
Investments
 € 37 million
Employees
 13 078
thereof in Germany: 5 784
thereof abroad: 7 294
EnergyPlusHome in Canada
Thermotechnology
4
Sales by segments 2009
Condensing technology is the standard
Hot water
€ 233 million
Other
€ 1 023 million
Conventional
€ 351 million
Renewable
€ 429 million
Condensing
€ 834 million
The share of renewable technologies is higher than the share of conventional ones
Thermotechnology
5
Sales by regions 2009
Regional distribution of sales
€ 981 million € 293 million
10%
€ 1 407 million
34%
49%
€ 137 million
5%
€ 51
million
2%
• Highest sales in Western Europe
• Asia: sound basis for further growth
Thermotechnology
6
Market positioning 2009
Leading positions maintained in 2009
In the heating technology
sector, Bosch
Thermotechnology is ...
positioned as the No. 1
Bosch Thermotechnology is the No. 1 in ten countries
Thermotechnology
7
Strategic milestones in 2009
•
Expansion of the project business through acquisition of Loos
•
Expansion of the product portfolio in the CHP segment through acquisition of Köhler &
Ziegler
•
Expansion of business in Asia as share in the joint venture with Rinnai is increased
from 30% to 70%
•
Increase in R&D from 2.8% (2008) to 3.2% (2009) of sales; further increase in 2010
Thermotechnology
8
Expansion of the product portfolio

Consistent expansion of renewable energies
• Inhouse production of CHP plant for heat and power generation up to 2 MWel
• New range of wood pellet boilers up to an output of 32 kW

Maximisation of product efficiency
• Integration of high-efficiency pumps (energy efficiency class A) into the condensing
gas and oil boilers
• Condensing gas boiler Buderus Logano plus GB402 with lowest power consumption
• Condensing gas solar system Junkers Cerapur Solar with highest energy efficiency
• Heat pumps save 30% more energy and CO2 than conventional air-conditioning
systems

Expansion of project business
• Large boiler systems up to 38 MW from proprietary production
• Large solar system technology up to a collector surface of 220 sqm
Thermotechnology
9
Business performance January - April 2010
Mixed start after the financial/economic crisis
AME
EUR
• Due to weak economic
activity in North America,
the US business started
moderately
• Sales in Europe are
above the previous year
after the first four months
• In contrast, the LatinAmerican countries are
generating strong sales
growth
• The main growth drivers
are the UK and Iberian
markets
APA
• Asia/Pacific shows
highest growth rate
• Especially the business
in China shows a very
strong performance
• Germany has started
moderately caused by a
long winter
Altogether, Bosch Thermotechnology started the year 2010 with growth
Thermotechnology
10
Projection
Outlook 2010
•
Economic recovery is measurable
•
Protection of the environment
is supported worldwide
•
Future-oriented investments
in R&D continue to be increased
•
Acquisition efforts are continued
•
Subsidies are decisive
Bottom line: a cautiously optimisistic business outlook for 2010
Thermotechnology
11
Expected developments until 2020
HVAC
Business environment
Technology
 Highly efficient systems + electrical
 Convergence of heating & VAC
 Changes in the building structure
Market and customer requirements
 Energy price trend
 Trend towards renewable energies
 Growing demand for cooling
Political environment
 Reduction of CO2 emissions
 Subsidies for renewable energies
 Primary energy mix
 Energy Plus Home

ment
p
o
l
e
v
 De
Electrical
Gas
Hybrids
Wood
Coal
Oil
CHP
Biomass
Consequences for
HVAC industry
New technologies
 Reversible heat pumps (+ cooling)
 CHP
 Increasing systems complexity and
control
Value added
 Worldwide competition
 Increasing local value added
New market structure
Manufacturers of AC systems
Utilities
Contracting providers
Sales organisation and customers
 New business models
 Increasing demand for advice and
service
Thermotechnology
12
Energy Plus – more than a vision for the future
Klaus Huttelmaier, Member of the Board of Management
of the Thermotechnology Division
BoschHaus Heidehof on 5 May 2010
Thermotechnology
13
Customer orientation
Meeting customer demands
Residential
Standard Products and Systems (SPS)
Trading business
Commercial
Industrial
Large Specified Systems (LSS)
Project business
Thermotechnology
14
Brand portfolio
Brands for markets
Brand Portfolio 2009
SPS
Own wholesale /
direct distribution
Regional / National
International
Third-party wholesale
LSS
14 brands
Thermotechnology
15
Direct distribution
Project business
Market development
Core Markets HVAC
Ventilation/
Air-Conditioning
Heating
Hot Water
€ 79 billion
+8%
+5%
€ 20 billion
€ 47 billion
+5%
€ 14 billion
2009
€ 12 billion
2016
2009
2016
All markets with positive growth
Thermotechnology
16
€ 18 billion
2009
2016
Growing importance of the climate targets
Global warming

By 25 September 2009, humans had
generated as much CO2 as the earth is
able to absorb within an entire year.

In order to maintain our lifestyle in the
long term, we would thus need 1.4
planets.
Thermotechnology
17
Growing importance of climate targets
Thermotechnoloy has the major key to reaching
climate targets
• Energy consumption in buildings accounts for about
40% of the CO2 emissions worldwide.
• By 2050, energy consumption and CO2 emissions
would have to be reduced by 60% in order to limit
global warming to 2 K.
• This means that about as much CO2 would be
saved in buildings as is currently being generated
in the global transport sector.
Source: Study “Energy Efficiency in Buildings“, World Business Council for Sustainable Development, 2009
Thermotechnology
18
Climate change leads to structural change
• Limited availability of fossil fuels
• Price increase and insecurity with regard to the supply of fossil
energies
• Increasing demand for comfort
• Future building standards
15000
15000
Renewable
renewable
14 %
Condensing
17 % condensing
10
10000
10000
10
5000
5000
47 % Noncondensing
noncondensing
0 00
1985
waterheater
gas
waterheater
22 % Gas
2005
forecast2015
1995
2020
1515
are important drivers
20000
20
2020
0505
• High demand for renewable energies
• Guidelines and subsidies
20000
European market,
heatingTT
technology
Market Europe,
core business
1919
9595
and energy efficiency
Mio.units
1919
8585
• CO2 emissions and climate change
• Increasing pressure for CO2 reduction
´000units
Driver
Condensing technology and systems that use renewable energy are gaining importance
Thermotechnology
19
Development with a focus on
• Solar thermal systems
• Heat pumps
• Wood and pellet-fired
boilers
• Increased efficiency through
Renewable
energy
combinations of fossil and renewable
energies
• Micro CHP,
Efficiency
CHP
• Efficiency of an appliance
• Gas-driven heat pumps
• Ventilation
• Cooling
Comfort
Systems
• Efficiency of the heating system (system
efficiency)
• Energy saved in the building (building
efficiency)
Thermotechnology
20
New products 2009/2010
Converting energy more
efficiently – condensing gas solar
• 30% efficiency increase as compared to conventional
condensing gas solutions confirmed by Fraunhofer ISR
• Simplest hydraulic layout without switches
• Connection of a second heat source possible
• Clearly lower purchasing costs
Condensing gas solar:
CerapurSolar system
Thermotechnology
21
Converting energy more
efficiently –multivalent system
• Components:
- CHP for base load
- Heat pump for medium load
- Condensing gas boiler for peak load
• Hydraulic integration through the
HAST-AKKU® energy & storage
management system
Multivalent CHP system (Buderus):
• High reduction of energy consumption,
ancillary costs and CO2 emissions
Loganova EN20 / Logatherm WPS / Logano plus GB312, HAST-AKKU®
Thermotechnology
22
Product news – Eastern Europe
Oil/gas steel boiler
120 - 1 850 kW
Condensing gas boiler
320 - 620 kW
New
w
Ne
Ne w
Brine/water heat pump
22 - 60 kW
Focus markets:
• Russia
• Ukraine
• Turkey
• Slovakia
• Czech Republic
• Greece
• Poland
• Romania
• Hungary
Thermotechnology
23
Energy Plus Home
The standard of the future
An Energy Plus Home
is a house …
… that generates more
energy than it consumes
over the year.
Thermotechnology
24
Energy Plus Home
How is the additional energy generated?
kWh/m²a
Power
generation
with PV
Primary energy
requirements
(heating/
hot water/
electricity)
Existing
~400 kWh/m²a
New building
1980s
~300 kWh/m²a
New building
1990s
~230 kWh/m²a
New building
2010
~185 kWh/m²a
Passive house
120 kWh/m²a
Maximisation of energy efficiency / Generation of renewable electricity
Thermotechnology
25
Energy Plus Home
The standard of the future
An Energy Plus Home
is a house …
… that generates more
energy than it consumes
over the year.
• The Energy Plus Home is the right solution for achieving the climate targets. It can be realised
using the technology that is available today – for new buildings and most existing ones.
• The Energy Plus Home should become the standard for new and existing buildings.
• This is certainly a very ambitious goal which can be reached only step by step. What is more
important than a fixed timeframe is that all parties involved work consistently towards this goal.
Bosch Thermotechnoloy systems allow to build the Energy Plus Home already today.
Thermotechnology
26
Thank you very much for your attention!
Take care.
Thermotechnology
27
Bosch Thermotechnik
Energy Plus Home with available technology
Miriam Asbeck, Energy Plus Home Project Manager
Bosch Haus Heidehof, 5 May 2010
Thermotechnology
1
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Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.
Can the Energy Plus Home be realised with
today‘s available technology?

Basis
 What is an Energy Plus Home?
 General conditions for the four reference buildings selected
 An example

Presentation of four reference buildings
 Sensible use of today‘s available technologies
 Energy balances
 Cost-income analysis
Thermotechnology
2
Energy Plus Home
What is an Energy Plus Home?
Primary
energy
credits
Primary
energy
requirements
(heating/
hot water/
electricity)
Existing
buildings
New building
1980s
~400 kWh/(m²a) ~300 kWh/(m²a)

New building
1990s
~230 kWh/(m²a)
New building
2010
~185 kWh/(m²a)
Passive house
120 kWh/(m²a)
More energy is produced than is needed
Thermotechnology
3
Energy Plus Home
The Energy Plus Home and its limits
Possibility 1:
Optimise the shell
Possibility 2:
Generate electricity
Primary
energy
credits
2. max. PV yield!
Primary
energy
requirements
1. Residual
requirements!
(heating/
hot water/
electricity)
Existing
buildings
New building
1980s
~400 kWh/(m²a) ~300 kWh/(m²a)

New building
1990s
~230 kWh/(m²a)
New building
2010
~185 kWh/(m²a)
Passive house
120 kWh/(m²a)
An integrated approach (shell – technology – electricity generation) is
required to convert as many houses as possible into Energy Plus Homes
Thermotechnology
4
Energy Plus Home
Conditions and energy requirements in a single-family home






4 person household, Germany, Würzburg
178 sqm of living space, ground plan 10 x 9 m, oriented towards the south
Roof slope of the existing house: 45° with 50 sqm PV surface,
Roof slope of the new buildings: 30° with 78 sqm PV surface
Heating requirements scaled to kWh/(m²a) see overview
 Reference: Heating and hot water requirements covered with condensing gas
Hot water requirements 3 800 kWh/a incl. distribution network losses
Electricity requirements 4 700 kWh/a
Overview of heating requirements
1
Existing
Qh 200 kWh/(m2a)
35 600 kWh/a
Existing refurbished
Qh 90 kWh/(m2a)
16 000 kWh/a
3
2
New
Qh 70 kWh/(m2a)
12 500 kWh/a
4-litre house
Qh 40 kWh/(m2a)
7 100 kWh/a
Thermotechnology
5
Example 3 – Energy balance of a 4-litre house
with standard technology
Qp
Primary energy
requirements

26 900 kWh/a


Modern prefabricated skeleton-style house
25 cm facade insulation
Heating requirements (Qh): 40 kWh/(m2a)
Thermotechnology
6
with modern technology
Residual requirements
17 600 kWh/a
15 400 kWh/a
-14 000 kWh/a
Qp
Qp
Primary energy
requirements
26 900 kWh/a




A++ household appliances and
A++ lamps
Controlled ventilation with heat recovery
Brine/water heat pump
Photovoltaics on the roof
Thermotechnology
7
Primary energy
credits
14 000 kWh/a
Qp
Qp
Primary energy
requirements
Primary energy
credits
26 900 kWh/a
If modern technology is used, a positive
balance can be achieved in a 4-litre house
Thermotechnology
8
14 000 kWh/a
Presentation of the Energy Plus Home
Example 3 – Cost balance of a 4-litre house


Costs

Controlled ventilation, geothermal heat pump

Plus photovoltaics and household appliances
approx. € 27 000
approx. € 34 000
Savings

in relation to condensing gas boiler

primary energy

CO2
approx. 5 300 €/a
approx. 40.9 MWh/a
approx. 5 800 kg/a
Thermotechnology
9
Illustration of the Energy Plus Home
Can the Energy Plus Home be realised today?



Result for existing buildings

The use of modern technology makes it possible to achieve
dramatic savings

Plus Energy balance possible in insulated existing buildings
(1990s standard)
Result for new buildings

Optimisation of the building shell testing its limits

A positive energy balance is easily achieved
Conclusion – Realization of the Energy Plus Home
1. Reduce energy requirements as far as possible
2. Cover the remaining energy requirements as efficiently as possible
3. Generate as much electricity as possible
Thermotechnology
10
Can the Energy Plus Home be realised with
today‘s available technology?

Basis

What is an Energy Plus Home?

General conditions for the four reference buildings selected

An example
Presentation of four reference buildings
 Sensible use of today‘s available technologies
 Energy balances
 Cost-income analysis
Thermotechnology
11
Background information
Information about Room 1
Visions are achievable
May 2010
 A refurbished building becomes an Energy Plus Home
Millions of existing buildings in Europe are yet to be refurbished with a view to energy efficiency.
These houses offer an enormous potential for reducing energy costs. The consistent upgrading of
an existing building to the Energy Plus Home standard shows how the energy balance can be
improved considerably. A house that used to have a negative energy balance is turned into an
energy supplier: It generates more energy than it consumes. The following example shows that
state-of-the-art technology can turn an existing single-family home into an Energy Plus Home.
General data
A family of four live in a single-family house in Würzburg (Bavaria, Germany), which was built in
1965 and has a floor area of 178 square metres. In the mid-1990s, heat insulating windows were
installed and 5 cm wall insulation was added to the 24 cm brickwork. The primary energy
consumption is about 200 kilowatt hours per square metre and year, the heating requirement is 90
kilowatt hours per square metre and year, which has so far been covered by a condensing gas
boiler. The energy required for domestic water heating is
3 800 kilowatt hours per year, in addition, the family consumes about 4 700 kilowatt hours of
electricity in the same period. The roof with a surface of 50 square metres available for
photovoltaics and solar thermal systems has a pitch of 45°.
The Energy Plus technology
The washing machine Logixx 8 VarioPerfect from Bosch takes care of the family’s laundry.
Compared to energy efficiency class A, the power consumption of the appliance is even 30 percent
lower: in the standard programme with eight kilograms of laundry, the washing machine consumes
1.03 kilowatt hours of electricity and 56 litres of water.
The south side of the roof as well as the southward façade of the house are used for the
installation of the photovoltaics system. The S_19 modules from Bosch turn the solar energy very
efficiently into electrical energy. They achieve an efficiency of 13.7 percent. The nominal output is
225 watts.
When it comes to ventilation, the family benefits from the advantages of the Aerastar controlled
ventilation from Junkers, a brand of Bosch Thermotechnology. It provides for reliable and efficient
ventilation and achieves an efficiency rating of 91 percent. In contrast, 50 to 70 percent of the heat
is lost when you open the windows to ventilate. In addition, Aerastar has a very good electrical
efficiency: with one kilowatt hour of electricity, Aerastar recovers up to thirty times the equivalent
amount of energy. Aerastar features silent operation thanks to low-noise direct current ventilators
and optimum case insulation. High-quality filters provide for very good air quality even for allergic
sufferers.
A condensing gas solar combination is installed in the cellar of the house. The Cerapur Solar
unit was also supplied by Junkers, the Bosch Thermotechnology brand. It consumes up to 30
percent less energy than a conventional condensing gas boiler. The appliance is exceedingly
simple to combine with almost all energy and heat sources. As the complete heating hydraulics
including mixing valve are integrated, a solar heating support can be realised quite simply – as in
the exemplary building in Würzburg. Only two additional hydraulic connections and the system
cylinder with integrated solar station and electronics are required for this purpose. With four solar
collectors connected, Cerapur Solar works as efficiently as a conventional system with five
collectors. The efficiency of this condensing gas solar combination has also been confirmed by the
Fraunhofer ISE (Institut für Solare Energiesysteme).
The result
The house started off with an annual primary energy consumption of about 200 kilowatt hours per
square metre. It now has a surplus of 2 kilowatt hours per square metre. The consistent upgrading
of the energy efficiency of the existing building using state-of-the-art technology pays off in the
medium and long term. While the investment was about
€ 53 000 for state-of-the-art household appliances, photovoltaics system, controlled ventilation,
condensing gas heating and solar collectors, the energy cost saved per year is € 4 300. Even with
unchanged energy prices, the investment breaks even after about twelve years – turning the
refurbished building into an Energy Plus Home.
Using potentials
May 2010
 Energy-efficient HVAC technology turns a new building into an Energy Plus Home
A sound energy concept plays an important part when planning a new building. After all, the
decisions taken in the planning phase are often binding for decades. Those who opt for efficient
technologies are on the right track for saving a lot of energy in the long term. In addition, an
average new building without special demands made on wall thickness or insulation can be turned
into an Energy Plus Home with a positive energy balance, as the following example shows.
General data
The new building complies with the current German building standard EnEV. The family of four is
living on a total floor space of 178 square metres. An annual consumption of 70 kilowatt hours per
square metre is assumed for the heating. The reference heating system is a condensing gas boiler.
The house in Würzburg (Bavaria, Germany) is oriented to the south; the walls are made of 24 cm
concrete plus 12 cm insulation (polyurethane). The roof has a pitch of 30° and offers a usable
surface for photovoltaics of 78 square metres. The family of four have an annual electricity
consumption of 4 700 kilowatt hours. The energy required for domestic water heating is 3 800
kilowatt hours per year.
A++ rated household appliances like the efficient heat pump dryer EcoLogixx 7 S from Bosch
contribute considerably to reducing the consumption. The power consumption of the dryer is 50
percent lower than in energy efficiency class A (limit: 0.48 kWh/kg).
On the southward roof, the photovoltaics modules S_19 from Bosch collect free solar energy. The
efficiency is 13.7 percent, the nominal output 225 watts. This means that the modules work very
efficiently. The complete roof surface of 78 square metres can be used for the installation of the
system.
Energy is lost above all through the wrong type of ventilation. Keeping windows open for extended
periods of time is really expensive as 50 to 70 percent of the heat is lost. From an energy efficiency
point of view, controlled ventilation makes much more sense. The Logavent HRV ventilation from
Buderus, a brand of Bosch Thermotechnology, achieves an efficiency rating of 91 percent. With
one kilowatt hour of electricity, it recovers up to thirty times the equivalent amount of energy. This
ventilation provides maximum comfort for the inhabitants, who benefit from the reliable and silent
operation of the Logavent HRV. And allergic sufferers can take a deep breath, too, as high-quality
filters keep the pollen out.
Another major contribution to the Energy Plus Home is made by the heating system. The family
uses the advantages of the pellet boiler Logano SP161 from Buderus. Thanks to optimum
combustion, it has an efficiency of up to 93 percent – with very low emissions. As the boiler has an
automatic cleaning function for the heat exchanger and the combustion grate, the efficiency
remains consistently high and the maintenance costs stay low in the long term. Thanks to the
modulating output, the Logano SP161 is an ideal heat source for single-family homes like the one
in Würzburg.
The result
Not all new buildings are the same. By leveraging the potential of energy-efficient technologies
consistently, you can turn a standard new building into a genuine energy supplier. In this example,
a primary energy surplus of 96 kilowatt hours per square metre and year is generated. The
investment of € 56 000 for household appliances, photovoltaics system, controlled ventilation and
pellet boilers break even after only ten years – and the energy balance of the house remains
positive all the time. Even with constant energy prices, the appliances save € 5 300 per year in a
conservative calculation.
Maximum efficiency
May 2010
 State-of-the-art technology turns a 4-litre house into an Energy Plus Home
Many single-family homes built today are categorised as “4-litre houses” in Germany. This means
that these buildings consume only four litres of oil per square metre of floor space and year. But if
the focus is already on energy efficiency, why not take things a step further and turn the energy
consumer into an energy provider? The following example shows that it is quite easy to achieve
this goal.
General data
The 4-litre house is located in Würzburg in northern Bavaria. The contemporary prefabricated
house has 178 square metres of floor space for the family of four. The building was erected with a
light frame construction plus a 25 cm thick insulation. The reference heating system is a condensing gas boiler. The energy consumption for domestic water heating is about 3 800 kilowatt hours
per year. In addition, the family consumes about 4 700 kilowatt hours of electricity for the household in the same period. The roof has a pitch of 30° and a surface of 78 square metres available for
photovoltaic collectors.
A++ rated household appliances help reduce the power consumption. The refrigerator-deep
freezer combination KGN39A97 NoFrost from Bosch complies with this standard. With a power
consumption of only 220 kilowatt hours per year, this appliance is among the most efficient ones in
its class.
On the roof, the photovoltaics modules S_19 from Bosch collect the power of the sun and convert
it very efficiently into electricity. With a nominal output of 225 watts, the system has an efficiency of
13.7 percent.
A system for controlled ventilation provides fresh air and a pleasant climate. The Vent from
Bosch controls the ventilation reliably, achieving an efficiency of 91 percent. This means that a
heat exchanger transfers almost the entire heat of the ambient air to the incoming fresh air, thus
considerably reducing the power required for heating the building. The efficiency of the ventilation
is underlined by its electrical efficiency: with one kilowatt hour of electricity, it recovers up to thirty
times the equivalent amount of energy. Allergic sufferers can take a deep breath, too, because
high-quality filters keep up the air quality in the long term – with optimum case insulation and lownoise direct current ventilators.
The heart of the heating system is the brine/water heat pump Compress 3000 LWM from Bosch
with an output of 6 kilowatt. It uses the soil as a heat source. Brine circulates in long plastic pipes
down in the ground. The brine takes the heat that is collected in the ground to the surface and releases it to the heat pump. The heat pump further increases the temperature level through pressure and gives off the heat generated to the heating circuit and the DHW cylinder. The electricity
required for this purpose is used very efficiently: from one kilowatt hour of electricity, the heat pump
generates up to 4.5 times as much heating energy. But the ready-to-install module not only provides for great heating comfort – a 163 litre stainless steel DHW cylinder easily covers the entire
hot water consumption of the family of four.
The result
The primary energy consumption of the house described above is about 150 kilowatt hours per
square metre and year. Efficient appliances, power generated on the roof, controlled ventilation
and environmentally friendly geothermal heat turn the 4-litre house into an Energy Plus Home. This
way, the primary energy consumption of the building is not only reduced to zero but the house
even boasts a positive energy balance, as it generates clearly more energy than it consumes. The
surplus is 79 kilowatt hours per square metre and year. The acquisition and installation of the four
components described cost about € 61 000. Every year, the inhabitants save about € 5 300 in
comparison to a conventional condensing gas heating. Even with constant energy prices, the investment breaks even after about eleven years.
Increased efficiency for everyone
May 2010
 Home owners and residents benefit from the positive energy balance of a
multi-family house
More than one third of the European population live in rented flats in multi-family houses. These
tenants are interested in low ancillary costs for electricity and heating. This is why there is now also
a focus on increasing the efficiency of multi-family houses. With the technology that is available
today, a multi-family house can be turned into an Energy Plus Home at reasonable cost. The
following example shows the way it works.
General data
This example assumes a four-storey multi-family house comprising 28 flats located in Würzburg
(Germany). The calculation is based on an average heating requirement of 53 kilowatt hours per
square metre and year – with three inhabitants per unit. The fact that the heating requirement is
lower than in a single-family home is due to the compact construction (ratio of building shell and
volume), which reduces the transmission heat loss. The reference heating system for the flats with
a floor space of about 90 square metres is a condensing gas boiler. Each unit has an average energy consumption for domestic water heating of 1 900 kilowatt hours per year and an electricity
consumption of 2 600 kilowatt hours per year. On top of the building with a floor space of about 625
square metres, there is room for a 700 square metre photovoltaics system.
Efficient household appliances are required in multi-family houses, too. The dishwasher
SMS69T25EU from Bosch is a genuine energy saver featuring the innovative Zeolith technology. In
the standard programme, this appliance consumes only ten litres of water and 0.86 kilowatt hours
of electricity. This means that it complies with the requirements of energy efficiency class A++.
The roof has enough space for a photovoltaics system. Altogether, 700 square metres are available here. The modules S_19 from Bosch turn the solar energy efficiently into electricity. With a
nominal output of 225 watts, the system achieves an efficiency rating of 13.7 percent.
Regular ventilation is very important in rented flats. Without a regular exchange of air, mould may
start to form and damage the rooms. This is not only a risk to the health of the residents: removing
mould may be expensive for landlords and tenants alike. A system for controlled ventilation in-
cluding heat recovery brings fresh air and a pleasant climate into all flats at all times. The
Logavent HRV ventilation from Buderus, a brand of Bosch Thermotechnology, achieves an efficiency rating of up to 91 percent. With one kilowatt hour of electricity, Logavent HRV recovers up to
thirty times the equivalent amount of energy. Another advantage: allergic sufferers can take a deep
breath thanks to the built-in dust and pollen filters.
In the boiler room of our exemplary multi-family house, everything is about efficient gas heating.
Natural gas-powered combined heat and power plants (CHP) are genuine marvels of efficiency
– they use the heat released during power generation for heating and domestic water heating on
the basis of heat and power combination. The new CHP complete module Loganova EN20 from
Buderus is a particularly efficient example. The system achieves a gross efficiency of 94.6 percent
(33.9 percent electrical efficiency, 60.7 percent heating efficiency in an 80/60 centigrade set-up).
Rated for an electrical output of 19 kilowatt and a thermal output of 34 kilowatt, the CHP plant is
tailored to the requirements of the building. A condensing gas boiler Logamax Plus GB 162-100
from Buderus reliably covers the peak consumption.
The result
Five technological components – efficient household appliances, photovoltaics, controlled ventilation with heat recovery, CHP plant and condensing gas boiler – turn a primary energy requirement
of 406 megawatt hours per year into a primary energy surplus of 21 megawatt hours per year.
With a total floor space of 2 520 square metres, this corresponds to a surplus of about eight kilowatt hours per square metre and year. This shows that a surplus can be achieved in a multi-family
house, too. Moreover, an Energy Plus multi-family house is not only beneficial with regard to energy consumption but also in terms of the financial investment. This is proven by a comparison of
the initial investment and the cost saved over time. The acquisition and installation costs for the
five components are about € 584 000. The measures described can save about € 50 000 per year
– compared to a building heated by a condensing gas boiler. Even at constant energy prices,
breakeven is reached after only twelve years.
Picture Overview
Reprint free of charge if marked “Picture: Bosch Thermotechnology“ –
voucher copy requested.
Management of Bosch Thermotechnik GmbH
Chairman
Uwe Glock
Members
Dr. Jörg Fischer
Klaus Huttelmaier
Dr.-Ing. Jürgen Sterlepper
Ulrich Schmidt
Picture Overview | 1
Loos Deutschland GmbH
Bosch Thermotechnik acquired Loos Deutschland GmbH on 3 August 2009. Loos is a
leading European manufacturer of highly efficient steam and hot water boilers in the
commercial and industrial segment. In the past fiscal year, the company, which employs
approx. 600 people, generated sales of € 130 million. Loos develops, manufactures and
sells steam and hot water boilers for space heating and process heat purposes in the
0.5 to 38 MW output range.
Loos
Production of an industrial boiler.
Köhler & Ziegler Anlagentechnik GmbH
On 1 March 2010, Bosch Thermotechnology acquired 100 percent of the shares in
Köhler & Ziegler Anlagentechnik GmbH, a German manufacturer of combined heat and
power (CHP) plants. The company is a technology leader in highly efficient CHP applications in the 20 kW to 2 MW output range. Köhler & Ziegler employs roughly 130 people
in Lollar and generated sales revenues of approx. € 23 million in 2009. The acquisition
will strengthen Bosch’s position in the promising CHP market segment and add highlyefficient eco-friendly technologies to its portfolio.
Koehler_Ziegler
Loading of a CHP plant.
Buderus Deutschland
In June 2009, Buderus, a Bosch Thermotechnology brand, opened the Buderus Academy. The new flagship of the company’s innovative training concept offers skilled traders
as well as planners and engineers perfect possibilities for further training in theory and
practice. The 3,000 square metres Academy in Lollar near Wetzlar offers state-of-the-art
training conditions, which make it an integral element of the Buderus training concept.
Some 600 training events are offered each year – from customer advice to planning and
installation of a heating system to regular maintenance. The focus is on systems technologies and the use of renewable energy sources. Buderus invested approx. € 15 million
in this and nine regional Training Centres.
Buderus-Akademie
Hans-Georg Kring, Head
of the Buderus Academy,
Dr. Rudolf Colm, member
of the Bosch management
team, Klaus Huttelmaier,
Member of the Board of
Management of the Thermotechnology Division.
RBS Thermotechnology Co. Ltd.
Bosch has increased its share in RBS Thermotechnology Co. Ltd., a joint venture with
Rinnai Corporation, Nagoya (Japan), from 30 to 70 percent. Established in 2006, RBS
Thermotechnology is headquartered in Jiading, Shanghai and employs 107 people. The
joint venture produces instantaneous gas water heaters for Bosch Thermotechnology.
The increased shareholding will strengthen Bosch Thermotechnology’s presence in the
increasingly important Asian region.
RBS_Thermotechnology
Production of an instantaneous gas water heater in
Jiading, Shanghai.
FHP Manufacturing Company
Tapping energy from the earth – this is made possible by electric heat pumps such as
they are produced by Bosch Thermotechnology in Florida/USA. The FHP heat pumps not
only support the heating of a building but, if required, also its cooling system.
FHP
Production of a heat pump.

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