Viessmann combined heat and power
generation system:
efficient power and heat generation for
single-family homes, large residential buildings,
commerce, industry, and municipal authorities
Viessmann has extended its product range for combined heat and
power generation and ISH 2015 sees it presenting
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Vitovalor 300-P – the first fuel cell unit to enter mass
production. This innovative system produces both heat and
electricity at the same time in an exceptionally
environmentally friendly solution, thus decreasing the
owner's dependence on the public power network.
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The Vitotwin 300-W and Vitotwin 350-F micro CHP
systems based on a Stirling engine can now be operated
using the Vitotrol app on a smartphone or tablet PC. There
are also new storage concepts available for Vitotwin 300-W
to adapt to different system configurations as required.
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The new, wall-mounted electricity storage systems for
micro CHP systems Vitovalor 300-P, Vitotwin 300-W and
Vitotwin 350-F can increase use of self-generated
electricity and minimize the purchase of expensive mains
electricity.
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The new CHP unit Vitobloc 200 EM-530/660 has now been
added to top Viessmann's range of gas engine combined
heat and power generation units.
Vitovalor 300-P: fuel cell unit for environmentally
friendly power and heating supply for singleand two-family homes
With Vitovalor 300-P, Viessmann has pioneered fuel cell
technology that is now available for environmentally friendly
generating power and heat in single- and two-family homes. The
device was honored with the renowned f-cell award, presented by
the Baden-Württemberg Ministry of the Environment, Climate
Protection and the Energy Sector as part of the Fuel Cell
Innovation Awards last October.
Energy cost savings up to 40 percent
Viessmann developed a combined heat and power generation
system in a joint venture with Japanese-based Panasonic. When
using this system, the owner can save up to 40 percent energy
costs and reduce CO2 emissions by about fifty percent compared
with a gas condensing boiler or conventional purchase of mains
electricity. This power-generating heating system produces up to
15 kWh during the course of the day, enough to cover most
household power requirements. The unit increases independence
from the public power supply and reduces the cost of expensive
electricity from the grid accordingly.
The heat produced when power is generated in the fuel cell is
used for heating or DHW generation. An integrated gas
condensing boiler switches on automatically when heat demands
are greater.
Fuel cell already installed in more than 50,000 locations in
Japan
The fuel cell module is a PEM fuel cell (polymer electrolyte
membrane fuel cell) run on natural gas, which Panasonic has now
installed at over 50,000 locations in Japan. It is designed to offer a
lifespan of at least 60,000 operating hours, which corresponds to
around 10 years. Viessmann has integrated this technology into a
compact, complete system with a peak-load gas condensing
boiler, buffer and DHW cylinders, and system controls.
Installation as for compact gas condensing boilers
Vitovalor 300-P consists of two units – the fuel cell module and
peak load module, which can be transported separately and
require floor space of just 0.65 m2. Both modules are fully preassembled, which makes fitting easy and ensures short installation
times. Fitters only need to connect the natural gas supply, an
exhaust gas/intake air line, heating flow and return lines, and
drinking water pipes. The fuel cell unit is thus just as easy to install
as a Viessmann compact gas condensing boiler. Fitters then only
need to connect to the electric mains to obtain power or to feed the
generated power into the grid.
Maintenance-free desulfurization
A two-year maintenance interval is quite sufficient for the gas
condensing boiler. The fuel cell also only needs to be serviced
every two years. Maintenance tasks are limited to air and water
filter replacement, which takes just a few minutes. The fuel cell's
natural gas desulfurization system is maintenance-free.
Attractive subsidy options
The fuel cell unit is subsidized by the German government as a
particularly energy-efficient future technology. As a result, owners
receive a total of 3,515 euros (base and bonus incentive) as an
investment grant from the German Federal Office of Economics
and Export Control (BAFA). Furthermore, there are numerous
regional incentive programs that subsidize purchases. Detailed
information, a full summary of the various incentive options, and
application forms are available online at www.vitovalor.de.
Owners also receive 5.41 euro cents for each kWh generated as
stipulated by the German Combined Heat and Power Generation
Act. Energy tax on fuel cell gas consumption is reimbursed at the
end of the year. The electricity, gas, and heat meters required to
ensure compliance with requirements are already integrated into
the unit. This saves homeowners additional costs of more than
2,000 euros that they would normally need to pay to have the
meters installed themselves.
Advantages for market partners
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Easy, quick installation ("Plug & Power") due to preassembled components
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Only an exhaust system is required; no additional water
connection is needed for fuel cell operation.
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Efficient operation at peak load thanks to the integrated
gas condensing boiler
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Simple to transport in two parts; footprint of just 0.65 m2
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Accessories from the existing wall-mounted gas boiler
range can be used for hydraulic and exhaust gas supply air
system.
Advantages for owners
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CO2 emissions reduced by up to 50 % compared to
centralized electricity generation and decentralized heat
generation
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Up to 40 % savings on energy costs and less dependence
on increasing electricity prices
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Integrated electricity, gas, and heat meters to calculate
state electricity subsidy and energy tax reimbursement
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Low-noise operation as with gas condensing boilers since
there are no moving parts in the fuel cell module
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Remote operation and monitoring of current power
generation data and maintenance information on
smartphone or tablet PC
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Reliable, time-tested technology – the fuel cell module has
been used in Japan for seven years; now installed in over
50,000 locations
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Reliable due to maintenance agreement with performance
and function-related guarantee for all key components
Technical specifications
Fuel cell module:
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Electrical output 750 W
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Thermal output 1 kW
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Electrical efficiency: 37 % (Hi)
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Overall efficiency: 90 % (Hi)
Peak load gas condensing boiler:
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Thermal output: 5.5 to 19 kW
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Utilization rate: 98 % (Hs)
Availability
The fuel cell heating unit Vitovalor 300-P powered with natural gas
is available now.
Vitotwin 300-W and 350-F: heat and power
supply for upgrading older systems
The micro CHP units Vitotwin 300-W and Vitotwin 350-F are
equipped with Stirling engines and integrated peak load gas
condensing boilers, which makes them ideally suited to cover the
basic electricity load and fully cover the heating needs when
single- and two-family homes are modernized. Vitotwin 300-W is a
micro CHP system for space-saving installation on walls. The
floor-standing compact device Vitotwin 350-F also features an
integrated 175-liter heating water buffer cylinder. The optional
Vitotrol app now also permits remote operation of both units
anytime and from anywhere. What's more, new storage designs
provide even greater flexibility in their application options.
Modulating Stirling engine
Vitotwin 300-W and 350-F are the only micro CHP units in the
world to feature a Stirling engine which can be operated in
modulating mode. The engine delivers an electric output between
0.6 and 1 kW. Due to demand-oriented output modulation, the
Stirling engine thermal output is between 3.6 and 5.3 kW. This
ensures long running times, during which inexpensive power is
produced. The Stirling engine’s overall efficiency can reach up to
96 % (Hs).
Integrated gas condensing technology for peak loads
Combined with the time-tested MatriX gas burner and the rust-free
stainless steel radial heat exchanger, the integrated gas
condensing boiler delivers additional heat to cover peaks in heat
demand on very cold days and provides instant DHW heating. The
Stirling engine and gas condensing boiler can be run on natural or
liquid gas. The total heat output from Vitotwin 300-W or
Vitotwin 350-F is 26 kW.
Power as required
Vitotwin 350-F has a power demand function that allows
householders to use inexpensive, self-generated power for
temporary increases in electricity demand to run appliances such
as a washing machine. The user simply presses the corresponding
button on the wireless remote control or the designated icon on the
Vitotrol app on their smartphone and the Stirling engine produces
electricity irrespective of the current heat demand. Alternatively, an
individual program can also be set on a timer. An optional wireless
remote socket can be conveniently used to ensure that electricity
requirements are met automatically.
Remote monitoring via Vitotrol app
In addition to the wireless remote control included in the package,
there is the new, optional Vitotrol remote control app for
smartphones and tablet PCs, which provides optimum
convenience. It can be used to monitor and operate up to three
heating circuits. Users can now make settings in heating
programs, adjust target values, and access system information
from any place at any time. Pictograms are used to assist with
controls and the system can be operated intuitively.
New storage designs – a suitable solution for every
application
The wall-mounted unit Vitotwin 300-W is easy to operate with its
small, space-saving heating water buffer cylinders or combination
cylinders. This is why there are now new storage concepts
available.
The combination between a heating water buffer and separate
DHW generation is eminently suitable for upgrading projects
thanks to their optimum versatility. The new heating water buffer
cylinder Vitocell 140-E (Type SEIB) has a 400-liter capacity for
storing heating water and was developed specifically for the micro
CHP unit. A DHW cylinder of any size or the fresh water module
Vitotrans 353 can then be installed for DHW generation.
Vitotrans 353 is available in three output versions (25, 48, and 68
liters per minute) for on-demand DHW generation.
The new combination cylinder Vitocell 340-M with a capacity of
400 liters is a highly compact solution for new buildings and
upgrading older ones. Drinking water is heated in a stainless steel
corrugated pipe, where it is heated by heating water in a
continuous flow process.
Attractive promotion program
The two new cylinders comply with the German Federal Office of
Economics and Export Control (BAFA) subsidy requirements
applicable since January 1, 2015. This allows homeowners to
receive financial support of up to 2,375 euros for systems fitted
with Vitotwin 300-W or Vitotwin 350-F. 5.41 euro cents are also
received for each kilowatt hour of power generated as per the
German Combined Heat and Power Generation Act. Moreover, the
energy tax on fuel cell gas consumption is reimbursed at the end
of the year. The electricity, gas, and heat meters required to
ensure compliance with requirements are already integrated into
units.
Simply one gas connection and one exhaust gas line
Unlike micro CHP systems with combustion engines, Vitotwin units
require just one gas connection (natural gas E, LL, or liquid gas)
and one exhaust gas line. As a result, there is no additional
installation outlay, ensuring lower installation costs for
homeowners.
Flow balancing can increase system efficiency by up to
15 percent. The optional, TÜV-certified (German technical
supervisory association) Vitoflow measurement procedure can be
used to perform hydraulic balancing in an automated process.
System hydraulics can be optimized in less than hour with no
specialist knowledge required and within a very short period of
time.
Servicing the units is just as easy as installing them. The Stirling
engine is completely maintenance-free, requiring neither filters nor
lubricant, since all moving parts are in a hermetically sealed
enclosure containing helium.
Advantages for market partners
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Easy transport as delivered in three sections (Vitotwin 350F)
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No extra work for installation and maintenance compared
to compact gas condensing boilers (maintenance-free
Stirling engine)
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No additional metering systems needed thanks to
integrated meters (electrical, gas, heat)
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Easy to install thanks to ready-to-use external component
assemblies
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Effortless servicing thanks to ready access to all
components requiring maintenance
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Remote monitoring possible with Vitocom
Advantages for owners
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Less exposure to fluctuating electricity prices thanks to own
power-generating capability
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Attractive subsidy program
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Targeted use of self-generated power thanks to ondemand power by pressing a button or using a timer or
wireless remote sockets
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Integrated meters for electricity, heat, and gas reduce
installation costs and permits German Federal Office of
Economics and Export Control (BAFA) incentives or energy
tax reimbursement without customer needing to supply
own meter
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Various options for operation using wireless remote control
(included in delivery), Vitodata or Vitotrol app
Technical specifications
Stirling engine:
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Electrical output: 0.6 to 1.0 kW
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Thermal output: 3.6 to 5.3 kW
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Electrical efficiency: 15 % (Hi)
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Overall efficiency: 96 % (Hs)
Peak load gas condensing boiler:
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Thermal output: 6.0 to 20 kW
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Utilization rate: 98 % (Hs)
Availability
The new Vitotrol app for the micro CHP systems Vitotwin 300-M
and 350-F will be available from April 2015. The new heating water
buffer cylinder Vitocell 140-E and the new combination cylinder
Vitocell 340-M will also be launched onto the market in April 2015.
Wall-mounted electricity storage system for
power grid independence
The new electricity storage system (type LAA) allows operators of
photovoltaic systems, Vitovalor 300-P micro CHP systems,
Vitotwin 300-W, and Vitotwin 350-F to use a greater proportion of
their self-generated power in their own home, thus minimizing
purchase of expensive power from the grid. This reduces energy
costs and creates greater independence from public supply
networks and trends in energy costs.
Furthermore, micro CHP system owners with electricity storage
systems have no worries when there are power outages in the
public power supply. The storage unit can supplement the power
generated by the micro CHP system in such cases. Independent,
off-grid network operation is even possible for residential housing
that is not connected to the public power grid, such as vacation
homes.
Cutting-edge cell technology for more than 5,000 charging
cycles
The compact electricity storage system features state-of-the-art
lithium-ion cell technology. This permits a discharge depth of
90 percent, which is significantly higher than in other comparable
storage units. With a storage capacity of up to 5.5 kWh, 4.95 kWh
of electrical energy is available for use. The integrated battery
management system regulates charging and discharging
processes automatically, thus extending cell lifespans. The unit is
designed to last a minimum of 5,000 charging cycles, thus
ensuring trouble-free storage operation for up to 20 years.
Simple installation
Weighing just 62 kilograms, the electricity storage system is very
light and easy to transport. Compact dimensions and an attractive
design ensure it can be easily integrated into living spaces.
Familiar components such as inverters, switchover boxes to switch
between mains electricity and storage or CHP electricity, and plugand-play configuration ensure that the system is quickly and easily
installed. It is also simple to retrofit into existing systems or
combine with photovoltaic systems.
Advantages for market partners
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Appealing supplement to micro CHP systems
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Fast, easy installation thanks to an integrated system with
existing components, such as inverter and plug & play
functionality
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Robust, maintenance-free technology
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10-year warranty
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Suitable for combination with photovoltaic systems in
addition to micro CHP units
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Can be retrofitted into existing systems
Advantages for owners
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Financial benefit thanks to greater use of self-generated
electricity and reduction in costs due to purchasing
electricity from the grid
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More reliable because of available backup during power
outages
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Independence – off-grid network operation is possible in
combination with Vitotwin 300-W/350-F (for buildings
without mains connection).
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Future-proof investment due to high number of cycles and
expected 20-year service life
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Low space requirement thanks to high storage density
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Can be integrated into living areas because of its attractive
design
Technical specifications
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Storage capacity: 0.55 to 5.5 kWh
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Usable energy output: 4.95 kWh
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Charging cycles: > 5,000
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Weight: 62 kg
Availability
The Viessmann Vitovolt LAA electricity storage system is available
from April 2015.
Vitobloc 200: new CHP unit with
530 kW electrical output
With an electrical output of 530 kW and thermal output of 660 kW,
Vitobloc 200 EM-530/660 completes the selection of gas enginepowered combined heat and power generation units (CHP unit)
available in the upper range. This model now brings the total
number of CHP units available with outputs between 6 and
530 kW to eleven. This means that there is an ideal module size
available for every use.
Most compact CHP unit in its performance class
Unlike other CHP units in this performance class, the new
Vitobloc 200 EM-530/660 components, such as the exhaust gas
heat exchanger, the plate-type heat exchanger, catalyzer, and
lubricating oil tank are integrated with the housing. With a footprint
of a little more than 13 cubic meters, it is the most compact unit on
the market and takes up very little room and vertical space.
Flexible operating mode
The new CHP unit can be operated with both heat and gas. The
electrical output can be continuously modulated between 50 and
100 percent of the nominal output. It can also be used for
emergency power operation in addition to parallel processing
mode. The CHP unit is equipped with starter batteries for this
purpose. This means that the CHP unit can be started up in the
event of a mains power failure and is then capable of supplying
electricity to the system.
Stable degree of efficiency over entire service life
Specially conceived for stationary operation, the turbocharged 12cylinder engine drives a synchronous generator. Its design and
moderate engine load ensure long maintenance intervals, a long
lifespan, and a stable degree of efficiency over the entire service
life. It also guarantees a high level of operational reliability and
thus largely retains its value.
Quality assured thanks to factory testing
Each individual CHP unit undergoes extensive testing on a test
bed before dispatch. All designated performance values are
checked and documented to ensure consistent high quality in each
CHP unit shipped.
Certificate in compliance with medium-voltage network
guidelines
CHP unit users are required to present a certificate for mains
connection. This document ensures that generating facilities only
feed in power that complies with the power network operator's
requirements. Like all Viessmann CHP units, the new module also
holds the full unit certification which complies with the German
Federal Association of the Energy and Water Industry (BDEW)
guidelines.
Moreover, the synchronous generator also features automatic
network adaptation for the phase shift (cos-φ). The system is
adjusted to the power grid using parametrization in the software or
based on signals directly from the power network operator. This
means that all requirements are met for easy connection to the
power grid.
Low planning and installation outlay
The CHP unit is delivered ready for operation. Planning and
installation is thus reduced to a minimum.
Advantages for market partners
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Low planning and installation outlay
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Always fulfills the power network operator's connection
conditions
Advantages for owners
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Requires the least amount of space in its performance
class
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Flexible operating mode
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Reliability in supply thanks to default mains replacement
function
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Consistent electrical efficiency throughout life cycle
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Easy registration with the network operator using a unit
certification in compliance with BDEW guidelines
Technical specifications
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Electrical output: 530 kW
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Thermal output: 660 kW
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Output modulation: 50-100 %
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Electrical efficiency: up to 39.5 %
Availability
The new Vitobloc 200 EM-530/660 module is available to order
now.
Comprehensive range of products for all fuel
sources
Combined heat and power generation systems are a permanent,
integral part of Viessmann's comprehensive range of products.
The range also offers customized solutions with efficient systems
and outputs between 1.0 and 120,000 kW for all application areas
and all fuel types. These include wall-mounted condensing boilers
with an output between 1.9 and 150 kW and floor-standing
condensing systems between 1.0 and 6,000 kW. Viessmann
provides a 10-year warranty against leaks due to corrosion for the
stainless steel radial heat exchangers in gas and oil condensing
boilers and micro CHP systems, (www.viessmann.de/garantie).
Also part of this impressive portfolio are systems for renewables
including solar thermal systems with flat-plate and vacuum tube
collectors for DHW generation, auxiliary heating, and process heat
generation, biomass boilers from 2.4 kW to 50,000 kW for wood
logs, chips, and pellets, heat pumps from 1.7 to 2,000 kW for use
with geothermal heat, groundwater or ambient air, and
photovoltaic systems.
Viessmann also supplies everything from a single source for local
heating networks and bioenergy villages – from initial feasibility
studies and detail engineering through to the delivery of all
necessary components, such as biogas systems, heat generators,
CHP modules, geothermal piping and residential transfer stations,
and construction and commissioning.
Comprehensive services portfolio
Furthermore, Viessmann supports their market partners with a
comprehensive services portfolio. This includes a flexible logistics
concept, a customer-oriented service concept from its Technical
Service Department, the needs-based Viessmann Academy
training program, campaign-related promotional material, the
online portal, and guaranteed sales thanks to brand presence at
winter sports events.
Images / captions
Image 1: With Vitovalor 300-P, Viessmann is the first
manufacturer to bring a mass-produced fuel cell unit onto the
European market.
Image 2: The new storage system designs for Viessmann's micro
CHP units Vitotwin 300-W and 350-F save space and offer even
greater flexibility for use.
Image 3: The new, wall-mounted electricity storage system by
Viessmann enables owners of micro CHP systems Vitovalor 300P, Vitotwin 300-W, and Vitotwin 350-F to reduce their need for
expensive grid power.
Image 4: Viessmann's new CHP Vitobloc 200 EM-530/660 unit
requires just slightly over 13 m3 of space, making it the most
compact unit in its performance class on the market.
March 2015