2. AD ENER-G designs, installs, finances
and operates anaerobic digestion
systems for the distillery industry
2
3. One-stop-shop - the complete solution
Our company
AD ENER-G designs, installs,
finances and operates anaerobic
digestion systems for the food and
beverage industry.
As a one-stop-shop, we take
the hassle out of developing
an anaerobic digestion facility,
by dealing with the planning
permission, permitting, licensing,
technical and financial due diligence,
project management, project build,
operation and maintenance and
handover. This gives the client a risk-
free solution to their waste problem,
as well as a share in the economic
benefits.
Valuable bi-products can be
converted into biogas utilising
various anaerobic digestion
technologies. We can analyse the
available bi-product and marry with
the most appropriate technology.
Digestion plants produce biogas
which has a high methane content,
approximately 50-70%.
This otherwise environmentally
harmful gas is a rich fuel that can
drive a CHP unit generating both low
temperature and high temperature
heat, coupled with low voltage and
high voltage electricity.
Delivery of individual biogas CHP
projects hinges on our unique
in-house resources.This includes
a specialist design team that will
assess the on-site heat and power
requirements and design the
relevant equipment to ensure the
optimisation of the heat and power
on-site.
Our people have vast experience and
technical expertise.This enables us to
deliver our solutions to a wide range
of clients.
Our advanced technology utilises
the biogas from the digestion
plant and provides green energy
which is currently supported by
the government’s Feed-InTariff
and Renewable Heat Incentive
programmes.
The heat is used in the digestion
plant and the related buildings and
the renewable electricity is sold at a
high price. As a result our solutions
consistently surpass customers’
expectations.
Our services include
5
Feasibility studyFeasibility study
Bespoke system design
Finance options
Project management
Delivery of project
Planning and permitting
Electrical connection
Installation and commissioning
Supply of flare and auxiliary
equipment
Operation and maintenance
Thecompletesolution
3
4. AD ENER-G designs, installs, finances
and operates anaerobic digestion
systems for the brewery industry
4
5. The problem
• The disposal of solid and liquid
bi-products is expensive and
represents a major challenge.
• Fossil fuel costs continue to rise
significantly.
• There is increasing pressure for
organisations to demonstrate
a long-term and sustainable
commitment to corporate social
responsibility.
Disposal and treatment of biological
waste represents a major challenge
for the waste industry in the UK and
Europe. For a wide range of organic
substances from agriculture, food
processing and manufacturing,
anaerobic (in the absence of oxygen)
digestion is a superior alternative
to composting, offering sizeable
economic benefits.
Biogas - predominantly a mixture
of methane and carbon dioxide
(CO2
) - is created from the anaerobic
digestion of organic materials.
The gas produced in the digester
consists of 50 - 70% methane and
30 - 50% CO2
.
This composition makes biogas well
suited for combustion in gas engines.
The biogas serves as a high-energy,
renewable fuel that can be used as a
substitute for fossil fuels.
Biogas-fuelled gas engines improve
waste management while help
maximise the use of an economical
energy supply.
Utilising biogas in the engines is
considered renewable energy and
decreases the site’s greenhouse
gas emissions, by reducing the
dependence on fossil fuel energy for
heat and power.
Due to the organic nature of the
components of biogas, combusting it
in a gas engine for power generation
emits the same amount of CO2
into
the atmosphere as was originally
absorbed during the process of
photosynthesis in the natural CO2
cycle.
The ENER-G concept
AD ENER-G works in partnership
with the digestion plant developers.
Clients feed their waste to our
anaerobic digestion facility, which
then converts it into a methane-rich
biogas.
This biogas is then used in the
ENER-G CHP unit, where it is burned
in a reciprocating engine.
The ENER-G cogeneration
technology enables customers to
realise the maximum economic and
ecological benefits available from
utilising biogas for power and heat
generation.
Energy generated
• LV - HV electricity
• Low temperature hot water (90°C)
or
• Medium temperature hot water
(120°C) or
• Steam up to 11bar
The heat can be utilised locally
and could possibly qualify for the
government’s Renewable Heat
Incentive (RHI). ENER-G can also
sell the electricity to the local grid
or via private wire arrangements,
and administer the process for the
recovery of Renewable Obligation
Certificates (ROCs) and/or Feed-In
Tariffs (FITs).
5
TheENER-Gconcept
5
The ENER-G concept
6. 6
AD ENER-G designs, installs, finances
and operates anaerobic digestion
systems for the bakery industry
7. Anaerobic digestion is a natural
process that involves bacteria
digesting organic waste and
producing biogas.
This biogas, which has a high
methane content, can be used to
generate heat and power.
1. Reception vessel: this will receive
the raw bi-product from the
factory and store it in a state
where it will not degrade or
lose its energy values, to be
further blended with other
products ready for delivery to
the digester tank.
2. Digester tank: the anaerobic
digestion of the prepared
bio-input.
3. Gas holder: the biogas produced
in the digester tank is collected
in a gas storage tank to ensure
continuous supply of biogas,
and to balance fluctuations in
the biogas production.
4. Flare: for safety reasons, the
installation of a gas flare is
recommended so that excess gas
can be burned off in the event of
excessive gas production.
5. Auxiliary equipment: switches
the flare on/off in case the biogas
quantity increases or drops, or
when the CHP unit is switched
off for example for annual
maintenance or repair.
6. Heating water: cold water is
transferred from the digestion
plant and other buildings into the
CHP unit. Here the Heat Recovery
System takes the ‘waste heat’
from the engine jacket and/or
from the exhaust gas to heat up
the water.
This thermal energy can be used
to heat the digester or to offset
the heat requirement of the
treatment plant or can be
delivered to local buildings at
80-90o
C or up to 11bar steam.
7. Biogas connection: the biogas is
transferred from the gas holder
into the CHP unit.
8. Natural gas: as an option natural
gas can be connected to the
system to provide additional
electrical energy or heat if
required (separate power unit).
9. Engine: a range of 6 to
20-cylinder turbo charged
reciprocating engines, in sizes
from 165kW to 2MW are
available for biogas
applications.
The engine is fully integrated
with the digestion plant and
can be controlled from anywhere
on the plant. It also has the
ENER-G Gkontrol system
for remote monitoring and fault
diagnosis.
10. Alternator: electric generator,
powered by the engine that
produces alternating current.
11. Silencer: reduces the engine’s
exhaust gas noise.The engine
is housed in a fully noise
proofed container and can
therefore be applied in noise-
sensitive locations.
12. Radiator: cools the engine by
transferring heat away.
13. Ventilator: prevents the engine
from overheating by providing
reduction in short-circuit air flow
from the pressure side to the
suction side of the ventilation
radial fan.
14. Transformer: transfers electrical
energy from the alternator to the
high voltage (HV) cable, if high
voltage is required on site.
15. Electricity LV or HV cable:
the electrical energy generated
by the CHP unit can be utilised
on site, as well as supplying
the grid and sold as renewable
electricity.
16. Exhaust: the engine exhaust
emissions comply fully with EU
standards.
Post-treatment of the residual
digest material takes place
and the end product from the
fermentation of the biomass can
be utilised as fertiliser.
5
Theprocess
7
The process
8. 88
AD ENER-G designs, installs, finances
and operates anaerobic digestion
systems for the dairy industry
9. 5
Expertise
• We are an international renewable
energy company with more than
20 years’ experience of delivering
renewable energy systems.
• We are specialists in CHP
manufacturing and operation with
25 years of experience.
• We are engine-independent
therefore can personalise the CHP
unit for each client’s needs.
• Over 15 years of experience in
biogas utilisation from
anaerobic digestion facilities,
landfill and coal mine methane
recovery at more than 80 sites.
• Experience in dealing with a
variable energy gas that can
contain contaminates that effect
generation performance.
• Operation and maintenance,
with a network of over 70 service
engineers in the UK and across
Europe.
• Our state-of-the-art remote
monitoring system ensures
immediate problem identification,
which reduces downtime and
increases engine availability up
to 95%
Finance
Given the strength of the ENER-G
group of companies, we are able to
provide the warranties that ensure
these technologies are bankable.
Therefore, we are able to offer
build-own-operate solutions.
Operation and maintenance
For all our systems we offer
personalised long-term operational
and maintenance contracts to ensure
smooth operation.
Technical
• Design and build of anaerobic
digester reactors.These could
be CSTR, UASB, ECSB.
• Biogas CHP installation and
operation.
• Heat interface with:
low temperature hot water
high temperature hot water
steam up to 11bar.
• Low voltage and high voltage
electrical distribution (DECC and
Ofgem FIT accreditations).
Ourcapabilities
9
Our capabilities
10. AD ENER-G designs, installs, finances
and operates anaerobic digestion
systems for the food industry
10
11. • ENER-G can carry projects that are
conceptual, through feasibility to
construction and completion.
• Reduced number of professional
bodies involved.
• Reduced cost of project
development.
• Flexible approach to the utilisation
of heat and power.
• All building works and civils can be
accounted for.
• Live online system monitoring and
operational maintenance.
• Maximised operational output
from the CHP system due to our
nationwide network of service staff.
BenefitsofworkingwithENER-G
11
Benefits of working with ENER-G
• Full client support and assistance
to maximise financial revenue
of selling the surplus electricity
on the wholesale market and
the administration of ROCs,
FITs, and RHIs.
