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Confidential
On-site Anaerobic Digestion and
Bio-energy on Industrial sites
EMEX – 17th Nov 2016
Confidential
Set up in 2006 – On-site Anaerobic Digestion
Target Markets – industrial clients:
Manufacturing feedstocks - dairy, foods,
beverage / distillery & biofuels sectors
On-site bioenergy plants on industry sites
UK - plus Ireland and other EU markets
Clients include Diageo, Nestle, First Milk & Arla
Commercial Benefits
On-site green energy supply
Biogas from COD removal
Possible grey water re-use
Revenue with cost reductions
CSR & environmental benefits
Future – Smaller Modular Plants 2
CLEARFLEAU – AN OVERVIEW
Confidential
BIOGAS PLANT Microbes turn fats and
sugars into biogas
COMBINED HEAT
AND POWER PLANT
LAKE DISTRICT CREAMERY
Cheese Production
GAS GRID
LOCAL HOMES AND BUSINESSES
UPGRADE PLANT
Carbon Dioxide removed
BIOGAS
BIOGAS
ELECTRICITY
BIOMETHANE
WHEY PERMEATE AND WASTE WATER
Confidential
Confidential
Capex – expect 4 year payback
AD Plant about £6m
Civils & GtoG about £3m
Savings – replacing failing plant
Save £2m+ Aerobic investment
Operating cost reduced by £600k
Eliminate off-site disposal costs
Revenue plus FIT & RHI incentives
500kWe power (FIT) - £500k
Gas to Grid & RHI - over £2m
Revenue / savings - over £3m
Incentives indexed - for 20 years
Expected payback- under 5 years
Attractive payback; project replicated in UK dairy sector
5
REVENUE and INCENTIVES INVESTING IN ON-SITE DIGESTUION
Confidential
Confidential
LDB Cutting costs / generating revenue:
Producing 1000 m3/h of biogas
Over 5MW thermal energy value
Able to heat up to 4,000 homes
Cost £10m - net revenue £2m/annum
20% ROI (from savings & incentives)
Off balance sheet solution
Reduced environmental impact:
COD: optimal biogas conversion
Water: discharge to nearby river
Recycling: energy from residues
Emissions: cutting carbon footprint
Energy: reduce fossil fuel demand
Nutrients: bio-solids for farmland
Water: clean water discharge/re-use
ECONOMIC & ENVIRONMENTAL BENEFITS
Confidential
© Clearfleau
Robust Technology Demonstration sites
Circular economy
Smaller on-site plants
On-site Bio-energy CHP - on-site power
Boiler - process heat
Biomethane - gas grid
Biomethane - vehicle fuel
Wider Benefits Carbon reduction
Decentralised energy
Environmental Impact
On site AD – considerable growth potential in agri-food sector
DEVELOPING ON-SITE AD
Confidential
Thank You For more information – go to:
www.lakedistrictbiogas.com
www.clearfleau.com
Confidential
Combined Heat and Power (CHP)
Getting the most out of
CHP on industrial sites
Confidential
Why CHP?
Good environmental outcome
Higher efficiency
Lower carbon emissions
Good business
Savings
Incentives
Confidential
Why not CHP?
Complexity of
plant operation and design
regulation
commercial arrangements
funding
Confidential
(Use of) Heat – its all about temperature
Gas engine (35% elec efficiency):
Exhaust 400oC
Engine Jacket 95oC
Lube oil cooler 60oC
Steam turbine
Condensing vs back pressure
High steam inlet conditions needed for
efficient power generation (40 barg, >400oC)
Select outlet conditions for heating as required
Confidential
…more
Steam expander
Low pressure steam (<20 barg)
Modest output
Low efficiency
Simple
Confidential
Uses of heat
High temperature – process steam Most valuable form of energy
Greatest flexibility of use
Highest demand
Industrial
Low temperature – process hot water Limited applications e.g. process cleaning
Pre-heating
Very low temperature – domestic water, space heating Low energy density of carrier
Small sized customers?
Process Industries
Food and Bev
District heating
Confidential
Be aware
Infrastructure needed to deliver heat
What happens if heat is not needed
24/7/365?
What happens if the CHP heat supplier
cannot supply?
Contractual, commercial and technical
complexity
Points of jeopardy
Confidential
Further information
Good practice guides (ex ETSU)
CIBSE
ADE (ex CHPA)
CHPQA
Regen Energy, Craig Ibbetson
07769 740814
Confidential
Biomethane Value Chains Maximising value for industrial sites
EMEX, London
17th Nov 2016
Andrew Winship
Aker Associates Ltd
Confidential
Biomethane Value Chains Biomethane can be utilised in a variety of applications
On-site
Anaerobic
Digestion
Biogas
Up-grader
Gas
Boiler
CHP
Biogas Biomethane
Process
Feedstock
Heat
Electricity
Heat
Transport
Fuel
Process
Feedstock
Transport
Fuel
Electricity
and Heat
CO2 for off-site use
CO2 for
on-site use
Gas-to-Grid
Customer Site
Confidential
Biomethane to Grid The most popular application at the present time
On-site
Anaerobi
c
Digestion
Water Wash
Amine
Scrubbing
Membrane
Pressure
Swing
Adsorption
(PSA)
Grid Entry
Unit (GEU)
Process
Feedstoc
k
Transpor
t Fuel
Electricit
y and
Heat
Propane
Injection Odorization
CO2 Capture
and Utilisation
Biogas Upgrading
Biogas
Bio-methane
Source: ADBA July 2016
Confidential
Biomethane for Transport An exciting and emerging market opportunity
On-site
Anaerobic
Digestion
Biogas
Upgrading
Compression Biogas
Upgrading
Liquefaction
Liquid Bio-
Methane (LBM)
Compressed
Bio-Methane
(CBM)
CO2 Capture and
Utilisation
Confidential
Conclusion Opportunity to maximise value for industrial sites
The upgrading of biogas to biomethane opens up a number of
options for value creation
The optimum solution is dependent on a variety of factors both
external and site specific
Potential for site to become increasingly energy self-sufficient
Industrial sites could become self contained ‘Energy Islands’
Thank you for your time and attention
For more information contact:
Andrew Winship
Director
Aker Associates Limited
Telephone: +44 (0)7818 424610
