#celive #seuk @CleanEnergyLive cleanenergylive.co.uk

4-6 October 2016 The NEC, Birmingham, UK

#celive #seuk @CleanEnergyLive cleanenergylive.co.uk

Five Fords Waste

Water Energy Park

Mike Pedley

Head of Energy

4 Oct 2016

Clean Energy Live

Multiple embedded renewable generation

Dŵr Cymru Welsh Water

• Water and waste water service provider:

• 3m customers

• A non-shareholder utility company.

• All gains go to benefit customers.

• Reducing bills

• Social tariffs

• Accelerated investment

Dwr Cymru

Welsh Water

Welsh Water

& Energy • Large energy consumer

• 4100 sites

• 460 GWh/yr

• Growing green generator

• 56 sites

• 97 GWh/yr (15/16)

• Most sites embedded

[Add renewables map] kW capacity

501 +

101 - 500

0 - 50

51 - 100

Status

Renewable Energy Generation Sites

Strata Florida

Llys y Fran Res

Maerdy

Crai

Preseli WTW

Llwyn-on

Nash

Swansea

Cefn Dryscoed

Eign

CardiffAfan

Llanfoist

Lliedi

Ponsticill

Penycefn

Eithinfynydd

Ffynon Lugwi

Brenig

Queensferry

Kinmel Bay

Usk

Cilfynydd

Glaslyn

Cog Moors

Talybont

Dol y Mynach

Bolton Hill

Hydro – in delivery

Hydro - Live

Wind – planning/delivery

Solar PV - Live

Digestion CHP or AD - live

Biomass heating – Live

Hydro – in feasibility / design

Solar PV – planning / delivery

Elan Valley

Builth Wells

CarnoHirwaunNantybwch

Glascoed

Llangefni

Gaerwen

Dolbenmaen

Alaw

Court FarmWentwood

Sluvad

Ponthir

Bontgoch

Llanina

Alwen

Mynydd Llandegai

Penthir Res

Llyn Celyn

Cwmorthin

Ffestiniog

Claerwen River

Llyn Brianne

Cowlyd

Five Fords

Memorial

Wind – in feasibility / design

Ty Awen

Tyn y Waun

28/04/16

Biomethane to grid - Live

Felindre

Cwmtillery

Wind – Live

Five Fords Energy Park

Key:Solar PVWindAADGas to GridAD (existing)Hydro

Five Fords – Proposed layout

Phase 1

Phase 2

Five fords

• Waste Water Treatment Works

• Wrexham, N Wales

• Serves 96,000 households

Progress • 2012 - Anaerobic digestion

• 2012 – Combined Heat & Power

• 2015 – Bio-methane Injection

• 2015 - 2.5 MW solar PV

• 2017 – wind turbine

• 2017 – hydro turbine

• 2018 – ‘Advanced’ AD

• 20?? – energy storage?

Biomethane Injection Wales’ first operational site

Biogas Upgrade

Plant (membrane) Grid Entry Unit

Propane

Plant

Gas holder

Digesters

– Uses Sewage bio-gas

– Fully grid compatible

– Maximises ‘efficiency’

– Maximises ‘value’

CHP

Solar PV 10,000 panels (2.5MW) constructed on ‘brownfield’ land

Completed December 2015

Frames in place Cable and Earthing trenches Completed arrays

Energy Flows: Before

FIVE

FORDS

WWTW

E

L

E

C

T

R

I

C

I

T

Y

G

R

I

D

Ra

w s

ew

ag

e (3

00

l/s)

River Dee

Sludge limed

and disposed to land

G

A

S

G

R

I

D 30

0 l/s

wa

ter

Energy Flows : Now Gas

clean

up Digester

G

A

S

G

R

I

D

E

L

E

C

T

R

I

C

I

T

Y

G

R

I

D

Gas

injection Bio-methane

Ra

w s

ew

ag

e (3

00

l/s)

River Dee

propane

Boiler

2.5 MW Solar PV

CHP

FIVE

FORDS

WWTW

30

0 l/s

wa

ter

Heat

Energy Flows : Future Gas

clean

up Digester

G

A

S

G

R

I

D

THP

E

L

E

C

T

R

I

C

I

T

Y

G

R

I

D

Gas

injection Bio-

methane

300

l/s

Ra

w s

ew

ag

e (3

00

l/s)

River Dee

propane

300

l/s

Boiler

0.5 – 1 MW

Wind

2.5 - 5 MW Solar PV

CHP

FIVE

FORDS

WWTW

Sludge

imports

Heat

Battery?

Multiple technologies

—Steady ‘baseload’

from gas to grid

—Solar power when

the sun shines

—CHP electricity and

heat when the site

needs it

0

200

400

600

800

1000

02/05/2016 03/05/2016 04/05/2016 05/05/2016 06/05/2016 07/05/2016 08/05/2016

Five Fords G2G

Five Fords G2G

Peak period

0

500

1000

1500

2000

2500

00

:30

04

:30

08

:30

12

:30

16

:30

20

:30

00

:30

04

:30

08

:30

12

:30

16

:30

20

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00

:30

04

:30

08

:30

12

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16

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20

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08

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12

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20

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20

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12

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16

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20

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00

:30

04

:30

08

:30

12

:30

16

:30

20

:30

02/05/2016 03/05/2016 04/05/2016 05/05/2016 06/05/2016 07/05/2016 08/05/2016

Five Fords Solar

0

100

200

300

400

500

02/05/2016 03/05/2016 04/05/2016 05/05/2016 06/05/2016 07/05/2016 08/05/2016

Five Fords CHP

Five Fords2

Five Fords1

Peak period

Optimisation – work in progress

– Matching generation to demand?

– Maximising value?

MWh (7 days) 158 Demand

CHP 55 Solar 90

Import 59 Export -46

Net import 13

Challenges and Learning

• Government policy uncertainty / change

• drives costs up and benefits down

• but there have been benefits for early adopters

• Grid constraints

• Could restrict the full development

• Performance, reliability & maintenance learning

• Reduced operating costs => supports lower bills

• Reduced intermittency (solar-wind-CHP)

• Generating on site: lower Grid import costs

• Export sales, Feed in Tariff, RHI income & GGC

• Lower carbon emissions

• Drives Innovation & Excellence

Energy Park Benefits

Five Fords Waste

Water Energy Park

Mike Pedley

Head of Energy

4 Oct 2016

Clean Energy Live

Multiple embedded renewable generation