The bioenergy village: Power and heat from renewables

The bioenergy village:
Power and heat from renewables
Contents
2l3
Contents
Accepting challenges:
Saving fossil fuels and protecting the climate
Page 5
The installation of advanced, highly efficient systems contributes
to ensuring a futureproof energy supply. Such systems can save
up to one third of the energy used in the heating market.
Power and heat supply in the bioenergy village
Page 7
Self-organised cooperative models secure finance, acceptance
and local value creation to renovate a community's energy
supply.
Renewable local heating:
Many benefits for residents and local authorities
Page 9
Permanently lower heating costs help ease the budgets of
households, businesses and local authorities. This creates scope
for other investments.
Viessmann – a partner to be relied upon at every stage
!
% "#
$$
Page 11
For project coordination, system technology and system
construction, Viessmann is the professional partner with all
of the necessary expertise.
Breuna-Wettesingen:
Power and heat for 200 households
Page 12
100 % of Wettesingen's heat supply comes from renewables,
the only bioenergy village in Germany where this is so. All the
technology used comes from Viessmann's comprehensive
product range.
Individual solutions using renewable energy systems
To create a bioenergy village or even a partial solution,
Viessmann has the ideal futureproof and economical renewable
energy system to meet every requirement.
Page 15
Challenges
4l5
Accepting challenges:
Saving fossil fuels and protecting the climate
Ensuring a futureproof energy supply and
protecting the climate are the greatest
challenges currently facing mankind. Energy
consumption worldwide has doubled since
1970 and will triple by 2030. Energy prices
are becoming ever more crucial cost factors.
Climate change is no less critical an issue
than future security of energy supply. CO2
emissions exert a critical influence on the rising
temperature of the Earth's atmosphere.
Setting sustainable standards with
bioenergy villages
The heating market accounts for more
than 40 % of energy usage and the largest
proportion of energy consumption; it
therefore can play a significant role in the
achievement of agreed political climate goals.
The installation of advanced, highly efficient
systems would save the heating market up
to one third of its energy.
Political goals with regard to energy
and climate
To this date, there are no global binding
agreements on climate protection. By contrast,
the German Federal Government has already
established concrete political goals regarding
energy and climate which should be achieved
by the year 2050:
Bioenergy villages can contribute to this
saving. All households are supplied from
a local heating network whose energy is
generated from renewable fuels on the
outskirts of the village. These fuels come from
agricultural resources which are processed
in a biogas plant, or from local forests. Every
bioenergy village is therefore a strategic
sustainability project which protects the
climate and environment, and in an ideal
scenario, does not consume fossil fuels such
as oil or gas.
„ 50 % energy savings
compared to 2008
„ 60 % renewables
„ 80 % reduction in CO2 emissions
compared to 1990
A twin strategy has been developed for
realising these objectives, i.e. fossil fuels must
be used more efficiently, while renewables
must be used more intensively. In this context,
numerous acts of parliament have been
revised or newly drafted in Germany. The most
important are the Renewable Energy Sources
Act (EEG), the Renewable Energies Heat Act
(EEWärmeG), the CHP Act (KWK-Gesetz) and
the current Energy Saving Ordinance (EnEV).
Low initial costs
It usually costs around €4500 for one
household to connect to the heating network
of a bioenergy village. This includes a
contribution to the operator association,
which is usually a cooperative.
In comparison to a conventional oil heating
system, the price for heating is reduced by
around 30 %. In fact, savings during operation
rise continually over several years. The CO2
savings achieved are above 50 %.
rs
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Par
hip
Envir
on
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ou
tection
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al
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igh
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Bioenergy village
ain
t
s
Su y ge
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A bioenergy village is primarily a community in which reliable partnerships and neighbourliness amongst the residents are contributing factors for success.
Low energy costs make the bioenergy village attractive
to families and commercial enterprises
„Protection of the climate and environment
„Structure for future energy supply
„Local value creation
„Suitable for any village
„Independence from energy supply utilities
6l7
Renewable power and heat supply
in the bioenergy village
Crude oil can only continue to be extracted
at current rates for a few more decades.
Consumers must therefore change to other
fuel types and find sustainable solutions
to bring about the urgently needed energy
transition. Bioenergy villages that use
renewables to supply their own heat and
power can assist with this.
The need for a strong community
However, a new strategy for energy supply
and energy efficiency will only be successful
if residents join together to form a strong
community and develop their own initiative.
Through self-organised cooperative models,
finance, acceptance and local value creation
can be secured to renovate a community's
energy supply.
From the beginning of the project onwards,
residents, local businesses, contractors
and, last but not least, local authorities are
involved. Everyone has the same goal of
greater independence from national energy
supply utilities and no longer being at the
mercy of rising fossil fuel prices.
What makes a bioenergy village special?
Around 100 parishes and villages in Germany
can already call themselves bioenergy
villages. They meet the following framework
conditions:
„ 100 % of the village's supply comes from
power generated with renewables
„ At least 5 % of the heat provision is based
on biomass
„ More than 50 % of the bioenergy plant
is owned by the "heat customers" and
farmers who provide the biomass
„ The population of the village is generally
between 500 and 1500 residents
There are approximately
7500 biogas plants in Germany.
Partial solutions with
bioenergy systems are possible
Alongside "full" bioenergy villages, numerous
concepts have been developed in which
only part of a town or village is supplied by
bioenergy systems. Such places may not fulfil
all the criteria for stand-alone provision of
renewable fuels, yet they still allow significant
savings to be made.
With our comprehensive product range,
Viessmann offers efficient and economical
components that allow the best possible
solution based on energy efficient and
renewable heating systems to be found under
the given conditions.
Bioenergy village
1
6
2
4
5
7
3
5
4
8
9
10
1
4
Agricultural biomass (energy
crops, slurry, manure)
Combined heat and power unit
7
Biomass boiler
9
Local heating network
(CHP)
8
Oil/gas boiler for peak
10
Exporting power to the public grid
2
Biogas plant
5
DHW cylinder
3
Biogas pipe
6
Forest-based biomass
loads
Greenhouse gas emissions from heat produced from fossil fuels and renewable sources
Fossil fuels
Grams of CO2 equivalent per [kWh]
Renewables
Average CO2 emissions per kWh
of heat from fossil fuels and
renewable heating technologies.
* German power mix
co atu
nd ra
en l g
si as
D
ng
is
tr
ic
th
ea
ti
ng
H
ea
tp
um
p
L
fr oc
om al
h
bi ea
om ti
n
as g
So
s
la
rt
h
sy e rm
st a
em l
W
oo
d
he
sy at
s t in
em g
si Oil
ng
N
en
nd
co
N
ig
ht
s
(p t o r
ow a g
er e
)
Source: German Renewable Energies Agency, 2010
8l9
Renewable local heating:
Many benefits for residents and local authorities
The criteria for a bioenergy village are
quite straightforward. The community is
usually rural and has between 500 and
1500 residents.
Secure and economical supply
The energy centre should be designed and
constructed outside the village to avoid
congestion for the residents from deliveries
of the necessary biomass. The energy centre
is designed to permit an extremely reliable
supply of heating water and domestic hot
water at any time. Seen over several decades,
every household invests just once to become
connected and then has no further costs.
Permanently lower heating costs help ease
the budgets of households, and create scope
for other investments. These might include
insulation, for example, to further reduce heat
consumption.
Strengthening the regional economy and
easing the budget
The biomass required for heat generation
usually comes from nearby sources. This
strengthens regional economies, as well as
local agriculture and forestry. It also involves
value creation, investment and job security.
Furthermore, savings from a cheaper heat
supply for public buildings help to relieve the
budget of the local authority.
Replacing conventional heating
In smaller communities that mainly consist
of detached houses, the typical fuel until
recently has been oil. With renewable local
heating networks, the individual heat source
in the house makes way for a heat transfer
station the size of a wall mounted gas boiler,
which measures actual consumption via a
heat meter. This also means the oil tank is
superfluous, so it can be removed, making
dirt and the smell of oil a thing of the past.
The space this creates could be used for a
hobby room, for example.
Locational advantage thanks to low
energy costs
The status of a bioenergy village makes it a
more attractive place for developing industrial
real estate. Existing and new businesses
have a locational advantage as they can profit
from the considerably lower energy costs
compared to oil and gas.
Bioenergy village
The Schmack biogas plant
generates biogas using the wet
fermentation process.
Pellet and woodchip boiler with
flat moving grate combustion up to
1700 kW
10l11
Becoming a bioenergy village:
Viessmann – a partner to be relied upon at every stage
As a complete supplier of energy systems,
Viessmann offers all the necessary
components from a single source. In
conjunction with our Group companies, we
supply not only the right heating systems for
renewables, we also design and construct
the biogas plant. This includes raw materials
management and operational control for
operating the CHP units with the biogas
obtained. In addition, Viessmann supplies a
standardised control unit to operate all the
heat sources and the heating network.
design engineers are involved. Cooperation
between Viessmann, regional service
providers and local construction companies is
very important with regard to value creation
and securing jobs.
All Viessmann services available
on request
From the initial concept, right through to
commissioning, costs arise which have to be
met. Comparatively small amounts for the
first steps are usually covered by the local
authority's budget. However, high costs will
eventually be incurred – at least when the
business plan is formulated and engineering
services are engaged. Viessmann will finance
and cover these costs with securities as part
of its involvement in the project.
There are invaluable benefits to this for the
local authority or cooperative as operators of
the local heating network. There is just one
contact person for questions on technology,
maintenance and repairs.
Project partner from the word go
Right from the start, Viessmann sees itself
as part of the project team. It accompanies
the village community as it takes its first
steps towards becoming a bioenergy village.
This includes studies that check, at various
levels of detail, the feasibility of the concepts
and their economic viability. In this area,
Viessmann's project development department
can provide valuable support. Moreover, local
As a professional partner, Viessmann
has all the knowledge needed for project
coordination, system technology and system
construction.
The direct online contact
Anyone interested can go to
www.viessmann.de/bioenergiedorf for further
information or to find the relevant contact
person.
Procedure for designing and constructing a bioenergy village
4. Services
Maintenance
and service
3. Project implementation
Detailed engineering
Design and commissioning
Time
At all stages of a bioenergy village's
development, Viessmann is the
2. Project development*
1. Studies*
professional partner for everything,
Technical and economical concept
Presentation of possible subsidies
Obtaining permits
from consultation through to
contracting, delivering all services
Preliminary
study
and components from a single
source.
Procedure
*In conjunction with local design
engineers
Reference
Breuna-Wettesingen:
Power and heat for 200 households
1110076
DN 25
1110033
DN 32
1110027
1110020
20 kW
21 kW
15 kW
1110096
1110032
18 kW
1201001-2
DN 25
1110007
1110057
1110062
DN 25
20 kW
DN 25
DN 25
DN 32
1
17 kW
18 kW
19 kW
DN 32
DN 25
DN 25
DN 50
DN 50
DN 40
DN 50
1201001-1
20 kW
DN 25
1110013
80 kW
15 kW
DN 25
1110135
1110101
18 kW
1110018
Solar and photovoltaic
1110073
70 kW
1110092
1110039-2
DN 25
59 kW
1110008
DN 25
DN 25
10 kW
111003
DN 32
25 kW
1110038
15 kW
1110102
DN 25
DN 25
DN 65
1110035
25 kW
DN 65
DN 65
DN 25
DN 65
DN 65
1110063
DN 65
1110127
DN 50
18 kW
1202004-2
1110039-4
11 kW
DN 25
1110039-3
1110089
1110054
15 kW
DN 32
DN 32
DN 25
1110064
15 kW
12 kW DN 25
1110069
1110084 22 kW
20 kW
8 kW
DN 32
27 kW
1202004-1
DN 25
DN 32
20 kW
DN 25
1110122
1110098
1110030
40 kW
DN 80
DN 25
15 kW
DN 40
DN 32
DN 50
1202002
12 kW
DN 25
DN 40
20 kW
15 kW
1110088
DN 25
1202004-3
DN 25
DN 25
17 kW
22 kW
DN 25
DN 25
DN 50
DN 50
18 kW
33 kW
DN 25
25 kW
27 kW
1110088
DN 65
DN 40
DN 32
DN 50
DN 50
DN 32
DN 25
16 kW
1110082
DN 25
DN 25
1110055
commercial users
15 kW
1201002
24 kW
20 kW
systems for private and
DN 32
DN 25
1110048
DN 25
DN 25
24 kW
111006
11101
DN 25
DN 25
DN 65
27 kW
15 kW
DN 80
DN 25
1110045
1009005
1110106
16 kW
15 kW
20 kW
DN 25
DN 80
DN 65
Transfer station for
DN 50
DN 25
1110086 17 kW
12 kW
22 kW
supplying heat to a
1110023
DN 50
DN 40
DN 25
DN 32
DN 25
DN 32
1110015
20 kW
32/15 k W
1110112
1110136
DN 25
18 kW
1110099
DN 25
DN 25
1110120
DN 50
DN 50 20 kW
20 kW
DN 100
1110021
1110129
21 kW
DN 40
13 kW
1110123
15 kW
21 kW
1110116
DN 25
DN 25
DN 25
20 kW
1110025
house
1110009-2
DN 25
DN 25
DN 25
DN 25
DN 32
10 kW
DN 32
DN 25
DN 25
1110091
DN 25
18 kW
32/20 k W
DN 100
30 kW
1009003
1009013
1119006
DN 100
1110029 15 kW
15 kW
1110051
18 kW
1110078
1
DN 25
11
DN 25
DN 25
DN 100
DN 125
DN 50
DN 50
DN 125
DN 125
DN 25
DN
DN 25
10 kW
DN 50
Liese
400 kW
1110113
1110044
19 kW
DN 25
1110094
1110012
DN 25
1009008
DN 125
DN 25
1009012-2
110 kW
DN 65
24 kW
DN 25
DN 25
1110042
1110039-1
DN 40
DN 150
18 kW
1110046
B iog
gas-- BH
H KW
CHP units for supplying
power and heat
Following successful preliminary feasibility
and feasibility studies and an economic
viability check, Viessmann has developed
a bioenergy village for the community of
Wettesingen in Breuna, near Kassel. In
late 2012, construction of the local heating
network began, which was to supply around
200 households with heat from renewables.
18/10 k
111013
DN 25
15 kW
1110047
15 kW
DN 25
1110097
for generating power
16 kW
DN 25
10 kW
Photovoltaic systems
DN 32
DN 40
DN 50
DN 25
21 kW
100 % renewable
As 100 % of its heat supply comes from
renewables, Wettesingen is currently the only
bioenergy village in Germany (as of March
2013). The local heating network pipeline is
10 km long in total.
All the technology used comes from
Viessmann's comprehensive product range.
The existing biogas plant was extended
to include a further CHP unit, three wood
combustion systems and a biogas boiler.
The overall thermal output is approximately
2600 kW, while the electrical output is
900 kW.
12l13
DN 125
25 kW
DN 125
DN 25
18 kW
DN 32
20 kW
DN 125
1110111
DN 125
19 kW
DN 65
1110105
Ho
olzpellet-Kaskade
DN 25
DN 65
10 kW
110081
1110024
32 kW
10 kW
1110103
18 kW
DN 50
30 kW
12 kW
1110005
1110095
DN 25
1009010
DN 25
DN 125
1009007
Heating centre with
15 kW
three biomass boilers
DN 25
j ewe
ei l s
1 Dücker
1110134
15 kW
DN 25
1009009
18 kW
DN 25
DN 25
18 kW
Anschlusss muss s
im Detaill nocc h
geklärt w erd
de n
20 kW
1110001
DN 25
1110139
DN 25
15 kW
DN 65
Highly effective
DN 100
1 1 1 0 1D
1D
3 2N 2 5
DN 65
DN 25
DN 65
20 kW
1009012-1
1110133
DN 25
20 kW
insulation for pipework
15 kW
20 kW
1110072
DN 25
1009004
in the local heating
DN 32
DN 65
DN 65
15 kW 1108001-2
N ur A n s c h l u s s
1110121
DN 100
network
DN 25
22 kW
DN 25
1110117
1108001-1
1110141
Hagedom
1110041
DN 25
DN 50
DN 25
DN 80
DN 100
20 kW
1110067
1110137 27 kW
DN 50
04
DN 80
1009002
DN 25
DN 25
DN 25
15 kW
15 kW
15 kW
20 kW
1110126
20 kW
DN 25
20 kW
DN 50
1110050
18 kW
DN 25
1110114
DN 25
31 kW
18 kW
1110130
DN 25
DN 40
1203004
1110125
18 kW
DN 100
17 kW
24 kW
DN 25
15 kW
DN 25
n r Anschluss
nu
1202003
DN 25
1203005
7 kW
DN 25
1202001
18 kW
1110066
15 kW
1110110
DN 25
DN 25
DN 25
1110036
18 kW
DN 25
25 kW
DN 100
CHP units for supplying
DN 25
17 kW
DN 32
1110031
1203009
DN 25
power and heat
21 kW
1110019
15 kW
1110080
DN 100
7 kW
10108
DN 25
DN 25
DN 100
DN 25
E i n bi n d u n g
S pii t zen l as t
DN 25
25
kW
E i n bii n d u n g
W ärme aus B G A
18 kW
1110022
38
Biogas for operating the
DN 125
CHP unit
M i k r ogas l ei t u n g
Low temperature boiler
with biogas burner for
secure supply if a CHP
unit fails
Biogasanlage
30 % lower heating costs
The price for heating in the Wettesingen
bioenergy village is based on all investment
and running costs. Compared to the costs for
individual heating systems that use fuel oil,
the community's heat supply is now around
30 % cheaper. Since the prices of oil and gas
can be expected to continue to rise, the price
benefit will become even greater in future.
The most important facts at a glance:
„ Germany's first bioenergy village with
100 % of its heat supply from renewables
„ Substituting 600,000 litres of fuel oil per year
„ Saving 1300 tonnes of CO2 per year
„ All system technology from a single source
– with many benefits where operation,
maintenance and repairs are concerned
Comprehensive range for bioenergy villages
Combined heat and power station
with two biomass boilers.
All components for the bioenergy village from a single source
Biogas system
Combined
Biomass
Pellet
heat and power
boiler
boiler
unit
Heat pump
Low
Transfer
Photovoltaic
Solar
temperature
station
module
collector
boiler
14l15
Individual solutions using renewable
energy systems
The comprehensive range of products and
services from Viessmann offers individual
solutions with efficient systems for all
application areas and energy sources. As
environmental pioneers, the company has, for
decades, been supplying particularly efficient
and clean heating systems for oil and gas, as
well as solar thermal and PV systems, heat
generators for sustainable fuels, and heat
pumps.
Futureproof and economical
To create a bioenergy village or even a partial
solution, Viessmann has the ideal futureproof
and economical renewable energy system
to meet every requirement. Low loss, highly
insulated pipework is required to build the
local heating network. For apartments,
detached or two-family houses, commerce
and industry, heat transfer stations are
available that are equally suitable for both new
build and modernisation projects.
The product range for all fuel types and
output ranges:
Wood combustion system with
an output of 1700 kW
Biogas CHP unit,
outputs:
366 kWel
437 kW th
Low temperature boiler
with biogas burner
„ Boilers for oil or gas
up to 116 MW heat or 120 t/h steam
„ Solar thermal systems
„ Photovoltaic systems
„ Heat pumps up to 2 MW
„ Wood combustion technology
up to 50 MW
„ Combined heat and power generation
up to 50 MWel
„ Biogas production plants from
18 kWel to 20 MWgas
„ Biogas upgrading plants up to 3000 m3 /h
„ System accessories
Output: up to 1300 kW
Biogas plant for wet fermentation
of biomass
Viessmann Werke GmbH & Co. KG
35107 Allendorf (Eder)
Telephone +49 (0)6452 70-0
Fax +49 (0)6452 70-2780
www.viessmann.de/Bioenergiedorf
9440 781 GB 03/2013
Copyright Viessmann.
Duplication and alternative use only with prior written consent.
Subject to modifications.