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UK Trends in Microgeneration Adoption Robert Harper Sustainable Technology Manager

Microgeneration, a Global Perspective  The fastest growing energy technology Global in the world is grid-connected solar PV, with 50% annual increases in cumulative installed capacity in both 2006 and 2007, to an estimated 7.7 GWe.  Rooftop solar thermal collecting capacity increased by 19% in 2006 to reach a level of 105 GWth globally.  Biomass and geothermal energy are now commonly employed for both power and heating, with recent increases in a number of developed countries.  Mandates for incorporating microgeneration into new construction represent a strong and growing trend at both national and local levels. 2

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1.5 million homes have rooftop solar PV feeding into the grid worldwide. Rooftop solar thermal collectors provide hot water to nearly 50 million households worldwide. There are more than 2 million ground-source heat pumps in use across 30 countries providing building heating and cooling. Source: [Renewables-Global Report, www.REN21.net]

Microgeneration, a Global Perspective  Geothermal direct-heat utilisation is growing much faster than geothermal power, with recent growth rates of 3040% annually. This trend will accelerate with the commercialisation of air source heating units, and combined HVAC systems for residential markets.

Global Annual Growth Rates of Renewable Energy Capacity, 2002-2006 Biomas s heating Geothermal power Biomass power Large hydropower Small hydropower Ethanol (annual production) Solar hot water/heating Solar PV, off-grid Geothermal heating

 The largest country shares of renewable annual investment were in Germany, China, USA, Spain, Japan and India. Investment in Germany increased to over $14 billion in 2007, mostly in wind and solar PV, and investment in China was $12 billion, mostly in small hydropower and solar thermal systems.

Wind power Biodiesel (annual production) Solar PV, grid-connected

0%

10%

20%

30%

40%

50%

60%

70%

Global renewable energy capacity grew at rates of 1530% annually for many technologies during the fiveyear period 2002-2006. The growth of grid-connected solar PV eclipsed all of these, with a 60% average growth rate. All technologies in light blue are predominantly microgeneration systems.

Source: [Renewables-Global Report, www.REN21.net]

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UK Microgen Industry, Reality or Rhetoric? Not All Technologies Commercial

Slow Growth… 120,000

100,000 Fuel Cells dCHP

80,000

Solar PV Biomass GSHP

60,000

Hydro Wind

40,000

Solar Hot Water

20,000 Wind

Hydro

GSHP

Biomass

Solar Hot Water

Solar PV

dCHP

Fuel Cells

0 2005

2006

2007

 Microgeneration growth in the UK has been slow despite introduction of various government measures

 Solar thermal is the only technology with a mature supply chain

 Certain technologies still very much cottage industries; only several hundred systems installed every year

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 Limited growth (exc SHW) has been driven by government capital grant incentives, a blunt policy instrument

 What are the challenges?  Scale, 15% Renewables by 2020  Cost-effectiveness, commercial viability with other industries

Renewables Directive – Proposed National Targets

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Commercial Drivers – Political & Environmental DTI Microgeneration Strategy (Mar ’06)

HMG Energy Review (Jul ’06)

Option to have target

Demand-side options

Research into behaviour

2020 statement on EE

Support for £80m LCBP

Fiscal incentives

Planning & Energy Bill (May 2007)

Allows LA to set higher EE ratings than B.Regs Merton Rule commitment April ’07, microgeneration in PDR

Link Ofgem & ENSG Identify non-tech barriers

2006

2007

CC&SE Act 2006 (Jun ’06)

6

2008

RAB Zero Carbon Homes (2007)

2009

2010

Suppliers Obligation Post 2011

Changed EEC to CERT

CSH 4-6 growth forecast

Future of CERT

Obligation for export £

Strong PV outcome

ESCO options

Fuel poverty alleviation

Need for fiscal incentives

Promotion of microgen

B.Reg changes in 2010

GHG reduction targets

Gearing-up period

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£

Hybrid options Develop energy services CO2 targets

Commercial Drivers – Economic HMT 2006 Budget

HMT 2007 Budget

VAT reduction 5%

Feed-In Tariff consultation

Tax exempt earning on export reward and RO payments for electricity

LCBP funding £80m ECA for B2B microgen

Significant debate Step change in support Cost recovery?

0% VAT on self-build housing for microgen

Fiscal support level p/kWh Strong NGO / Tory support

2006

2007

2009

2010

BERR 2020 Renewable Energy Strategy

Stern Review (Oct 2006)

CC represent real economic risk

 32% of bulk electricity from renewables. Massive growth

10% impact in the future, 1% GDP impact now

 Introduction of renewable heat and transport

Engages money-men

 Significant drive for on-site generation in built environment

Significant stakeholder

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2008

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Commercial Drivers – Social Day After Tomorrow (2004)

Power to the People (Feb ’06)

Mainstream movie

FT economic editor

Impact of climate change

Discusses decentralised generation in terms of security of supply

Discussion of Carbon emissions

2004

2005

Al Gore’s Inconvenient Truth (Jun ’06)

Mass media fall out for climate change awareness High level of consumer reaction Significant stakeholder impact

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Strong consumer messages on green in all sectors Sustainability is the key commercial word, M&S Plan A

Raises the question of bias towards large scale generation

Raises CC profile

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npower Retail Position on Green (Nov ’07)

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2006

FPAG Annual Report (2007)

It remains the case that the only sustainable way to end fuel poverty is through energy efficiency Includes microgeneration

Green is now main business, not just CSR

2007

2008

BERR Defra Fuel Poverty Strategy (2007)

The low Carbon buildings programme is hoping to attract bids from social housing providers seeking to install microgeneration

Commercial Drivers – Technology CLG Changes to PDR

Net Zero New Build (2010)

All on roof solutions of less than 200mm above roof surface to be PDR, exceptions of listed buildings and areas of outstanding natural beauty

2007

2010

Net Zero New Build (2014)

25% of new builds should comply with CSH level 6, net zero carbon

100% of total new builds should comply with CSH level 6, net zero carbon

Eco-towns begin roll-out across UK. 8 tests sites across England & Wales

Potential for off-setting options in non-conducive conditions e.g. urban

2012

2014

2016

Net Zero New Build (2014)

60% of new builds should comply with CSH level 6, net zero carbon 100% CSH Level 6 for SH/HA

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( In s ta lla tio n s ) T h o u s a n d s

Market forecasts 6,000 High growth scenario

2020 RES Targets

Current Growth Scenario 5,000

Low growth scenario

4,000

Double banded ROCs

3,000

Introduction of FIT?

2020 RES consultation

2,000

Introduction of CSH level 6

1,000

0 2005

10

2006

2007

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2009

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2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

Model Description

Stakeholder forecast

Apply Logistic growth model

Understand split of technologie s

Determine Key milestones

Breakdown by technology

Determine Milestones

Millions

1.34% 6.44%

7.20%

Hydr o

Technology Breakdown 2008- 2050

Win d GSHP Sola r PV

23.46%

0.01%

Calculate technology Outputs

35

Total Installations

30

ASHP Fuel Cell s

0.80%

Calculate technology breakdown s

UK Market 2008 – 2050

Technology breakdow n 2050

13.57%

Calculate S curve

Sola r Ther mal Bio mass dCHP

25

13.40%

33.78%

A SHP

Bi omas s

dCHP

Fuel Cel ls

Hydro

Solar Thermal

Sol ar PV

Wind

GSHP

2005 2006 2007 2008 2009 2010 2011 2012 2013 201 4 2015 2016 2017 2018 201 9 20 20 2021 2022 2023 20 24 20 25

20

Calculate Outputs

15

Apply Growth Multiplier

= t2 xn = t2/t1 x = n√t2/t1

kWp, kWh, £s, tCO2 T hou san ds

t1

xn

180 Forecast 5 per. Mov. Avg. (Forecast)

140 120

5

100 80 60 40

0

20 0 20

11

10

Total Wind Install ations

160

05

20

06

20

07

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08

20

09

20

10

20

11

20

12

20

13

20

14

20

15

20

16

20

17

20

18

20

19

20

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20

20

21

20

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20

23

20

24

20

25

20

05 007 009 011 013 015 017 019 021 023 025 027 029 031 033 035 037 039 041 043 045 047 049 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

J1

npower Forecast Model Microgeneration Market Adoption Model (MMAM) Te chnology Br eak down 2008 - 2050

Hydro Wind GSHP

2020 RES Targets

Solar PV ASHP Fuel Cells Solar Thermal Biomass dCHP

Introduction of FITs

Introduction of CSH Level 6

Actual figures

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Primary Assumptions:

 npower growth model based on logistic ‘S’ growth curve model  Introduction of Code for Sustainable Homes Level 6 signals beginning of significant growth for microgeneration. 12

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Slide 12 J1

Alpha model used JAMEC03, 20/08/2008

Model Breakdown: Power Technologies Hydro

Wind Thousands

Total Hydr o installation volumes

800 700

Electricity technologies  Growth in solar PV not expected to ‘takeoff’ until post 2011

Total Wind installation volumes

180 160 140

600

120

 Cost remains significant barrier to growth

500

100 400

80 300

 Current legislation will not be enough to transform and grow the market

60

200

40

100

20

0

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 00 00 01 01 01 01 01 01 01 01 01 01 02 02 02 02 02 02 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2

2009

7

2008

00

2007

0

2

Solar PV

 Wind will not see high volumes anticipated by BWEA:

Total PV installation volumes

1,800

 Solar PV is expected to be a technology of the masses but generate less than wind

1,600 1,400

 High volume micro-wind still encountering problems;

1,200 1,000 800 600

 Growth seen in larger (10kWp+) systems, but;

400 200

Installations (Stock) Solar PV Hydro Wind

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

0

2010 2020 7,297 1,525,000 134 500 2,916 132,610

2030 1,586,992 855 191,604

2040 1,651,505 1,462 276,842

2050 1,718,640 2,500 400,000

 Planning still remains an issue  Hydro will always remain a fringe technology and growth will be negligible  However, significant potential for hydro – more than 20,000 water mill sites

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Model Breakdown: Heat Technologies Fuel Cells

Total ASHP installation volumes

250

Th ou s a nd s

Thousands

ASHP 200

Heat technologies  Heat pumps will see anticipated growth levels:

Total Fuel Cell installation volumes

18 16 14 12

 Requirement for on-site generation

150

10 8

100

 Match with heating systems

6 4

50

 Electricity prices

2 0

0 07 20

09 20

11 20

13 20

15 20

17 20

19 20

21 20

23 20

07 0 8 09 1 0 11 12 1 3 14 1 5 16 17 1 8 19 20 21 22 23 24 25 20 2 0 20 2 0 20 20 2 0 20 2 0 20 20 2 0 20 20 20 20 20 20 20

25 20

dCHP

Solar Thermal

Total dCHP installation volumes Thousands

3,500 3,000

Total Solar thermal installation volumes

2,500

 Main growth of heat technologies expected dCHP:

2,000

2,500 1,500

2,000 1,500

 Fuel cells will also not see anticipated volumes- technology not yet commercially viable

 Take share of boiler replacement market

1,000

1,000 500

500 0

0

07 0 8 09 10 11 12 13 14 15 16 1 7 18 19 2 0 21 2 2 23 24 25 2 0 2 0 2 0 20 2 0 20 2 0 20 20 2 0 2 0 2 0 2 0 2 0 2 0 2 0 2 0 20 2 0

Installations (Stock) ASHP GSHP Biomass Fuell Cells dCHP Solar Thermal

14

07 20

09 20

11 20

13 20

15 20

17 20

19 20

21 20

23 20

25 20

2010 2020 2030 2040 2050 595 139,000 333,540 800,351 1,920,497 7,565 60,000 95,242 151,185 239,986 74,287 3,200,000 4,153,995 5,392,399 7,000,000 21 5,000 46,416 430,887 4,000,000 4,063 2,400,000 3,872,154 6,247,324 10,079,416 162,740 1,705,000 2,275,054 3,035,702 4,050,667

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 twin generation – Efficiency gains  Skill set already available within workforce  Solar thermal will see significant growth but not expected to meet previous forecast expectations

Conclusions  Difficult to forecast where the microgeneration industry is headed: – significant growth in the sector is expected, although – current economic climate introduces considerable risk to planning.

 Problem is that growth is dependent on government legislation: – not all technologies are commercially viable, – significant investment in the supply-side is needed.

 The industry needs to deliver on Government’s expectations: – whether or not the industry will generate the environmental and commercial savings expected, is yet to be decided

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