Islington Borough Energy Mapping Phase 2 Borough Wide Heat Mapping 032725 22 April 2014 Revision 01 Buro Happold Revision Description Issued by Date Checked 00 Draft for client review CG 08/04/13 AY 01 Final report for issue CG 22/04/13 AY 02 Minor Client Edits (see tracked changes) MD 24/04/14 \\srv-london02\Project Filing\032725 Islington Borough Energy Mapping\F42 Sustainability - SAT\03 Reports\Phase 2\140422 final revisions\140422 CG 032725 Phase 2 Borough Wide Heat Mapping - 01 AY 01.docx This report has been prepared for the sole benefit, use and information of London Borough of Islington for the purposes set out in the report or instructions commissioning it. The liability of Buro Happold Limited in respect of the information contained in the report will not extend to any third party. author Chris Grainger date 22/04/13 approved Alasdair Young signature date 22/04/13 .. Islington Borough Energy Mapping Revision 01 Phase 2 Borough Wide Heat Mapping 22 April 2014 Copyright © Buro Happold Limited Page 3 Buro Happold Executive summary Buro Happold Ltd has been commissioned by London Borough of Islington (LBI) to carry out a review of district heating potential across the Borough. The Phase 2 study comprises Borough Wide Heat Mapping, the second of three phases of work. The other related works are as follows: Phase 1A Highbury West: District Heating Feasibility Study Phase 1B Highbury West: Technical Design Phase 2 Borough Wide Energy Mapping Phase 3 Development of a Strategic Vision The council undertook heat mapping of the Borough in 2009 and identified 14 heat ‘clusters’ which represented opportunities for heat network development. This study updates the heat mapping work and will be followed Phase 3 of the project which will set out a new strategic vision for the Borough’s decentralised energy planning. The purpose of this study is to revisit the network opportunities across the Borough, refreshing the heat mapping to include changes in demand across the Borough based on new development and new data sources. The study also considers other heat sources such as secondary waste heat. Cross borough opportunities are also considered. The study has identified 15no. clusters which represent promising opportunities for establishing heat networks: Cluster Cluster name Description Key stakeholders no. Whittington Hospital, LBI Archway and High density of existing heat demands, large communally Housing, LBI Leisure, 1 Ethorne heated estate (Ethorne) and an area for development in Essential Living (Archway Estate Islington Local Plan Tower ) Scheme connecting the Harvist Estate to Sobell Leisure Highbury Sobell Leisure Centre, LBI 2 Centre. Fuel poverty drivers for estate heating system West Housing conversion Scheme focused on the communally heated Aubert Court LBI housing, Highbury 3 Aubert Court Estate, with future connection to Highbury Square Square residential development and surrounding LBI assets Consolidation of heating systems across LMU’s Holloway London Metropolitan 4 LMU Campus and connection to new student housing University development across Holloway Rd Extension to LMU scheme connecting Queenland Rd LMU London Metropolitan 5 residential development, new student residential and Extension University, Emitates Stadium Connection of Highbury Pool to the Central Library and Central LMU Spring House. Future connection to the mixed use LBI Leisure, LMU, LBI 6 Library redevelopment of Highbury Corner (Islington site CLL, Highbury House allocation) High density of heat demands focused on HM Prison, HM Prisons, LBI CLL, 7 Pentonville Islington Waste Transfer Station and Mallet and Porter Mortar Developments Ltd House (new build student accommodation) (student accommodation) Halton Consolidation of the council owned Halton Mansions 8 LBI Housing Mansions Estate Extension to the existing Kings Cross district heating Kings Cross Argent, LBI Housing, LBI 9 network including Dehli Outram Estate, Bemerton Estate Extension Leisure and Caledonian Road Pool Southern extension to Kings Cross extension scheme LBI Housing, LBI CLL, Kings Cross 10 connecting Belvin Court Estate, Half Moon Crescent Hyde Housing, Whitbread South Estate, 3 schools and 2 schools currently in planning. PLC 11 Bunhill Existing CHP district network in the south of the Borough LBI Housing, LBI Energy Islington Borough Energy Mapping Revision 01 Phase 2 Borough Wide Heat Mapping 22 April 2014 Copyright © Buro Happold Limited Page 5 Buro Happold Cluster Cluster name Description Key stakeholders no. Existing supplying council tenants. Includes loads due to connect Services, LBI Leisure Scheme as part of Bunhill Phase 2. Southern extension to Bunhill scheme connecting Royal Moorefield Eye Hospital, Bunhill Mail House and surrounding residential. Scheme is 12a LBI Housing, LBI Energy Extension extended to include Moorefield Eye Hospital (formerly Services (Cluster A) cluster B) Bunhill Extension connecting Golden Lane Estate and Golden LBI Energy Services, LBI 12b Extension Lane Leisure Centre to the Bunhill scheme. Housing, LBI Leisure (Cluster G) Northern extension to the existing Bunhill scheme Bunhill Berkeley Homes, LBI connecting two potential clusters form the new City 12c Extension – Housing, LBI Energy Forum development in the east to Finsbury Estate in the C and E Services West Connection of Citigen district network to Bunhill Row Citigen (Eon), LBI, Cass 13 Whitecross council offices, Cass Business School and Shire House Buisness School, London (new mixed use development) City Shopping Centre Ltd Together these clusters represent a significant investment pipeline and could save 34,500 tCO2/yr. The demands that could connect to heat network clusters (161 GWh/yr.) is equivalent to 17MW of CHP plant capacity and ~10% of the Boroughs total heat demand.1 The indicative cumulative cost of developing all clusters would be in the region of £69m. These clusters will be further developed during Phase 3 of the project and a number will be selected in order to develop more detailed energy masterplans. 1 2010 predicted heat demand https://www.london.gov.uk/sites/default/files/130220%20031250%20GLA%20Low%20Carbon%20Heat%20Study%20Report%20Ph ase%201%20-%20Rev01.pdf Islington Borough Energy Mapping Revision 01 Phase 2 Borough Wide Heat Mapping 22 April 2014 Copyright © Buro Happold Limited Page 6 Buro Happold Contents 1 Introduction 11 1.1 Context 11 1.1 Introduction and scope 11 2 Background 12 2.1 Previous heat mapping studies 12 3 Approach 15 3.1 Methodology 15 3.2 Data inputs 15 3.3 Clustering approach 16 4 Heat Demands 19 4.1 Heat demands 19 4.2 Borough heat mapping – anchor heat loads 19 5 Cluster Mapping 23 5.1 Overview of clusters 23 5.2 Heat mapping – clustering 25 6 Heat Supply 27 6.1 Primary heat supply 27 6.2 Secondary heat supply 27 6.3 Heat networks 27 6.4 Potential heat supply to clusters 30 7 Other mapping assessments 32 7.1 Heat mapping – non-anchor loads 32 7.2 Physical constraints 32 8 Cluster analysis 35 9 Next steps 36 9.1 Recommended further work 36 9.2 Phase 3 development 36 Islington Borough Energy Mapping Revision 01 Phase 2 Borough Wide Heat Mapping 22 April 2014 Copyright © Buro Happold Limited Page 7 Buro Happold Appendix A Benchmarks and Assumptions 10.1 Valuation Office Agency (VOA) commercial floorspace 37 10.2 New building benchmarks 37 10.3 Clustering analysis 38 10.4 Modelling Assumptions 38 Appendix B Heat Demand Anchor Loads Appendix C Heat Supply Appendix D GIS Maps Islington Borough Energy Mapping Revision 01 Phase 2 Borough Wide Heat Mapping 22 April 2014 Copyright © Buro Happold Limited Page 8 Buro Happold Table of Tables Table 3—1 Data Inputs for Anchor Heat Demand Mapping 15 Table 3—2 Data Inputs for Cluster Gap Analysis 15 Table 3—3 Data Inputs for Primary Heat Supply Mapping 16 Table 3—4 Data Inputs for Secondary Heat Supply Mapping 16 Table 3—5 Data Inputs for Heat Network Mapping 16 Table 4—1 Summary heat demands of borough anchor loads 19 Table 5—1 Brief descriptions of the heat clusters 23 Table 6—1 Existing heat networks within the Borough 28 Table 6—2 Heat network developments in surrounding boroughs 29 Table 6—3 Future heat networks 29 Table 6—4 Potential cluster heat supply sources 30 Table 8—1 First Tier Cluster Data 35 Table 9—1 VOA heating benchmarks 37 Table 9—2 New build benchmarks 37 Table 9—3 Clustering assumptions 38 Table 9—4 Tier 1 heat demands 39 Table 9—5 Tier 2 heat demands 48 Table 9—6 Tier 3 heat demands 51 Table 9—7 Bunhill Clusters from Arup 2013 study 52 Table 9—8 Key heat supply sources 53 Islington Borough Energy Mapping Revision 01 Phase 2 Borough Wide Heat Mapping 22 April 2014 Copyright © Buro Happold Limited Page 9 Buro Happold Table of Figures Figure 2—1 London heat map extract 12 Figure 2—2 Islington context and previous heat mapping (© Parson Brinckerhoff Ltd) 14 Figure 4—1 Categorisation of heat demands 19 Figure 4—2 Anchor load heat demands 20 Figure 4—3 Significant residential buildings including communally heated estates 22 Figure 5—1 Heat mapping - cluster identification 25 Figure 6—1 Communally heated LBI estates 29 Figure 6—2 Heat supply sources 31 Figure 7—1 Heat demand based on VOA floor area data and energy consumption benchmarks 33 Figure 7—2 Physical constraints map 34 Islington Borough Energy Mapping Revision 01 Phase 2 Borough Wide Heat Mapping 22 April 2014 Copyright © Buro Happold Limited Page 10 Buro Happold 1 Introduction 1.1 Context Buro Happold Ltd has been commissioned by LBI to carry out a review of district heating potential across the Borough. The Borough Wide Heat Mapping study comprises the second of three phases of work. The other related works are as follows: Phase 1A Highbury West: District Heating Feasibility Study Phase 1B Highbury West: Technical Design Phase 2 Borough Wide Energy Mapping Phase 3 Development of a Strategic Vision 1.1 Introduction and scope The council undertook heat mapping of the Borough in 2009 and identified 14 heat ‘clusters’ which represented opportunities for heat network development.