Clearfleau provides anaerobic digestion process design and project delivery services focused on liquid and low-solids waste streams. They have over 20 staff across their UK offices and offer engineering, operations, research, and financial services. Clearfleau has undertaken trials with mobile small-scale production plants and partners with other companies for higher-solids digestion and combined heat and power applications. Anaerobic digestion is evolving to focus on municipal/community waste, farm waste, and industrial waste treated on-site. Clearfleau has experience with dairy, food, and beverage industry digestion projects including two example dairy and confectionery plant case studies presented in the document.

1. Confidential
Distillery Seminar and Dailuaine Site Tour
Introduction
In conjunction with Nextgen
Tuesday 21 May 2013

2. Confidential
UK Based - Bracknell (& Cambridge)
Process Design - focus on liquids / low
solids - including fats + oils
Project Delivery - design & build
Team – 20+
Engineering –
process, mechanical, electrical
Operations – site based delivery, trials
Research – with York University
Sales, Marketing, Financial
Trials Unit - mobile Small Scale
Production Plant (SSPP)
Project Partners - UTS Biogas (Higher
Solids AD) / Ener-G (CHP)
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CLEARFLEAU – AN OVERVIEW

3. Confidential
AD evolving into 3 core sectors:
MUNICIPAL (COMMUNITY): landfill diverted.
Diverse feedstocks (44 sites)
FARM: slurry & crop feedstocks
Lower cost technology (42 sites)
INDUSTRIAL: bio-degradable waste
On-site heat & power (16 sites)
Non – Water Industry (146 sites)
EVOLVING MARKETPLACE

4. Confidential
 Dairy Industry
 BV Dairy, Shaftesbury*
 Arla Foods, Stourton (Leeds)*
 Volac, South Wales*
 First Milk (Glenfield), Scotland / FM Group
 Barbers, Shepton Mallet*
 Food Processing Industries
 Nestle, Fawdon* / Nestle Group
 Brewing and Beverage
 Diageo, Speyside* / Diageo Group
 Hook Norton Brewery
 Biofuels
 Greenergy*, Immingham
 Olleco (Agri-Energy)*, Liverpool
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OUR MARKET FOCUS
* Trials Undertaken

5. Confidential
Drivers to apply Anaerobic
Digestion (AD)
 Escalating energy costs
 Treatment capacity limits
 Effluent discharge consents
 Pressure on disposal costs
 Revenue generation potential
Project payback based on:
 Lower disposal costs
 On-site energy savings
 AD is revenue generative
− Incentive payments
− Carbon reduction
ON-SITE INDUSTRAL DIGESTION

6. Confidential
l
Type Band
RPI Index 1.048
AD Biogas ≤ 250 kW 14.0 14.0 14.7 15.16 14.0 13.3 12.6 12.0 11.4
AD Biogas > 250 kW - 500 kW 13.0 13.0 13.6 14.02 13.0 12.4 11.7 11.2 10.6
AD Biogas > 500 kW - 5 MW 9.4 9.4 8.96 9.24 8.96 8.6 8.1 8.1 8.1
RHI
Phase 1
Biogas
Combustion
< 200 kWt 6.8 7.1 7.1 7.3 7.5+
≤ 200 kWt 7.3
> 200 kW - 500 kW 5.9
> 500 kW 2.2
Current (+) index linked
RHI
Phase 2
Biogas
Combustion
Consultation
01-APR-2017-
31-MAR-2018
01-APR-2018-
31-MAR-2019
Installation eligibility dates between>
FIT
01-APR-2012-
30-SEP-2012
01-OCT-2012-
31-MAR-2013
01-APR-2013-
31-MAR-2014
01-APR-2014-
31-MAR-2015
01-APR-2015-
31-MAR-2016
01-APR-2016-
31-MAR-2017
Starting tariff (p/kWh)
+ 3.2 p/kWh for feed into grid
Tariffs are paid for 20 years from registration
date and are index linked for inflation
03-MAR-2012-
31-MAR-2012

7. Confidential
Anaerobic Treatment Plant
Location: Shaftesbury, Dorset
Activity: Independent dairy manufacturer
Build Dates: Nov 2009 - Sept 2010
Commissioned: Dec 2010
Key Features:
Material: 200m3 / day trade effluent/permeate
Plant: 1000m3 digester, high shear mixer,
solids separation & sludge thickener
Energy: 190 kWe combined heat & power
Outputs: 98% COD reduction from 25,400 mg/l
127 Nm3/hr biogas, 60% methane
20 t/week solid residue (soil improver)
Carbon: Electricity purchase cut by 60%
C02 emissions cut by 1,200 t/annum
DAIRY - BV DAIRY
7

8. Confidential
Anaerobic Treatment Plant
Location: Fawdon, Newcastle-upon-Tyne
Activity: Confectionery manufacture
Build dates: July 2012 - March 2013
Completion: Q2 2013
Key Features:
Feedstocks: 275m3 per day waste water
4t / day solids production residues
Plant: solids dissolution, balance tanks,
1550m3 digester, high shear mixer
Energy: 305 kWe combined heat & power
unit producing 368 kWh surplus heat
Outputs: 95%+ COD reduction from 15,000 mg/l
167 Nm3/hour, 50% methane
912 kg per day of solids residue
CONFECTIONERY - NESTLÉ
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9. Confidential
Thank you
Any Questions?
www.clearfleau.com