Elms Field, Wokingham Energy
Total Page:16
File Type:pdf, Size:1020Kb
ELMS FIELD, WOKINGHAM November 2018 ENERGY STATEMENT ___________________________________________________________ PROJECT: ELMS FIELD, WOKINGHAM ENERGY STATEMENT REVISION: Rev _04 ISSUE No: 04 PROJECT NO: 17-362 DATE: 22 NOVEMBER 2018 DELAP & WALLER LTD UNIT 12 ANTRIM TECHNOLOGY ANTRIM BT41 1QS Tel: +44 (0) 28 9448 3800 ELMS FIELD, WOKINGHAM November 2018 ENERGY STATEMENT ___________________________________________________________ Revision Date Description Issue 4 – M4 Glazing 23.11.2018 Prepared by Name: Ryan Young Title: Sustainability Engineer Signature: ELMS FIELD, WOKINGHAM November 2018 ENERGY STATEMENT ___________________________________________________________ TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY 4 2.0 INTRODUCTION 6 3.0 PLANNING POLICY 7 4.0 METHODOLOGY 10 5.0 ENERGY DEMAND REDUCTION 11 6.0 LOW CARBON AND RENEWABLE ENERGY SYSTEMS 15 7.0 MEETING THE PLANNING POLICY 19 8.0 CONCLUSION 20 APPENDIX A: INDICATIVE PV LAYOUT 21 APPENDIX B: PART L CALCULATION SHEETS 26 ELMS FIELD, WOKINGHAM November 2018 ENERGY STATEMENT ___________________________________________________________ 1.0 EXECUTIVE SUMMARY This statement has been prepared by Delap and Waller in support of the development of the mixed use project known as Elms Field, Wokingham. The development is located on the north of Wellington Road and West of Denmark Street. This Energy Statement reports the predicted energy performance and carbon dioxide emissions (CO2) of both the residential and non-domestic aspects of the development, using compliant design simulation software. The report outlines the design considerations that may be adopted to reduce the energy demand and CO2 emissions during the development’s operation. The proposed development is required to be compliant with Building Regulations ADL 1A for Residential units and 2A for the non-domestic units. The David Wilson residential development, adjacent to Elms Field, is not included in this assessment. Furthermore in accordance with Wokingham’s adopted managing development delivery (MDD) local plan (2014), schemes of more than 10 dwellings or 1,000 sq m in gross floor space of non- residential space, are required to achieve a minimum of 10% reduction in carbon emissions through on site renewable energy or low carbon technologies. Wokingham Borough Council’s local policies relating the sustainability are detailed in section 3.0. Elms Field Wokingham, achieves a 22.88% reduction in Carbon Dioxide emissions (CO2) beyond the baseline Part L Development. This has been achieved through implemented passive design measures for energy demand reduction, high efficiency Air-Source-Heat-Pump and implementation of photovoltaic panels. The development achieves a total saving of 108,107 Kg of CO2 per annum. Figure 1. Elms Field Wokingham CO2 Hierarchy and Targets ELMS FIELD, WOKINGHAM November 2018 ENERGY STATEMENT ___________________________________________________________ The below table demonstrates the breakdown in CO2 emissions for each the baseline and renewable reduction stages of the assessment for each assessment. Carbon Dioxide Emissions for non-domestic Gross Floor buildings Area (KgCO2) per annum (m2) Baseline Renewables M1: Retail 2241.2 72,390 65,443 M1: Cinema 1059.2 39,931 35,483 M2: Retail 295.7 7,658 7,008 M3: Supermarket 1558.6 47,693 42,238 M4: Hotel 3528.0 174,636 150,645 Residential 3331.7 66,312 63,613 The below table demonstrates the regulated CO2 savings from each stage of the hierarchy for the Elms Field Wokingham development. Regulated carbon dioxide savings (KgCO2 per annum) (%) Savings by Passive Measures 63,915 13.52 Saving from Renewable / LZC 44,191 10.81 Technologies Total Cumulative Savings 108,107 22.88 In total the Elms Field development achieves a 22.88% reduction in CO2 emissions beyond a Part L compliant development of which 10.81% is provided through the inclusion of renewable and LZC technologies. The Elms Field Wokingham development exceeds the minimum 10% reduction in CO2 emissions via renewable or Low and Zero Carbon Technologies as required by Wokingham Borough Council. ELMS FIELD, WOKINGHAM November 2018 ENERGY STATEMENT ___________________________________________________________ 2.0 INTRODUCTION The report is written by Delap and Waller on behalf of McLaughlin & Harvey. The purpose of this statement is to provide evidence that the required policies as contained within Wokingham’s adopted core strategy development plan document (2010), Adopted Managing Development Delivery (2014) and Building Regulations Part L 2013 are met. This statement outlines the methodology and specification in order to determine and present emission reductions after each stage of the Energy Hierarchy; target emission rate, passive reduction measures and reduction via renewables. 2.1 DEVELOPMENT DESCRIPTION The proposed development location is situated within the centre of Wokingham. The Elms Field site is located to the North of Wellington Road and West of Denmark Street. The development is a mixed use site, including Use Class A1 Shops, A2/3 Restaurants and cafes, Class C1 Hotel and Class D2 Cinema and Dwellings consisting of a mix of houses and apartments. The site plan below (Figure 2) shows the location of the above use classes split across Blocks M1, M2, M3 & M4. The D2 Cinema will be designed to achieve BREEAM “Very Good” and the C1 Hotel will be designed to achieve the “Premier Inn Bespoke” BREEAM rating through meeting the required criteria in Management, Health and Wellbeing, Energy, Transport, Water, Materials, Waste, Ecology and Pollution. Figure 2: Elms Field Site Plan – CDA Architects ELMS FIELD, WOKINGHAM November 2018 ENERGY STATEMENT ___________________________________________________________ 3.0 PLANNING POLICY This Energy Statement has been carried out in line with local and national planning policy requirements relating to sustainable design and construction, encouraging that passive design, energy efficiency measures, low zero carbon and renewable technologies are incorporated into the design and construction of all new developments. 3.1 Local Policy Wokingham Borough Council’s policies relating to Sustainable Design and Construction are contained within the Adopted Core Strategy Development Plan (2010) and Adopted Managing Development Delivery (MDD) Local Plan (2014). 3.1.1 Adopted Core Strategy Development Plan Adopted Core Strategy Development Plan Document (2010) Policy CP1 12. Contribute towards the goal of reaching zero-carbon developments as soon as possible by: a) Including appropriate on-site renewable energy features; and b) Minimising energy and water consumption by measures including the use of appropriate layout and orientation, building form, design and construction, and design to take account of microclimate so as to minimise CO2 emissions through giving careful consideration to how all aspects of development form. Adopted Managing Development Delivery (MDD) Local Plan (2014) Policy CC05: Renewable energy and decentralised energy networks 1. Local opportunities to contribute towards decentralised energy supply from renewable and low-carbon technologies will be encouraged. 2. Planning permission will only be granted for proposals that deliver a minimum 10% reduction in carbon emissions through renewable energy or low carbon technology where the development is for: a. Schemes of more than 10 dwellings (gross) or b. Non-residential proposals of more than 1,000 sq m gross floorspace. 3. Proposals for renewable energy and decentralised energy works, including wind turbines, must demonstrate that: a. They are appropriate in scale, location and technology type; b. Are compatible with the surrounding area, including the impact of noise and odour; ELMS FIELD, WOKINGHAM November 2018 ENERGY STATEMENT ___________________________________________________________ c. Do not have a damaging impact on the local topography and landscape; d. There is no significant impact upon heritage assets, including views important to their setting; e. In the case of wind turbines, take account of their cumulative effect and properly reflect their increasing impact on the landscape and on local amenity. Sustainable Design and Construction Supplementary Planning Document (SPD) (2010). Sustainability Issue 1: Adhering to national codes on construction standards Residential developments will be assessed under the Code for Sustainable Homes and non-residential developments will be assessed under whichever BREEAM version is applicable. Sustainability Issue 2: Minimising Energy Consumption All developments (including new builds, extensions, conversions and change of use) should seek to achieve the highest practical standards of sustainable design and construction to reduce energy demand throughout the lifetime of the development. The Council will encourage all developments to be built to higher standards than those required at a regional or national level. The Council will encourage developers to set new standards of excellence. Sustainability Issue 3: On-site decentralised / renewable / low carbon Energy Generation. In line with the South East Plan policy NRM11, all developments involving 10 or more dwellings or 1,000m2 or more gross non-residential floorspace (major developments) will be expected to secure at least 10% of their carbon emissions from decentralised, renewable or low carbon sources. Non-residential development of 1000m2 criteria applies to all proposals outside use class order C3. This means that nursing homes and residential institutions are included. The Code for Sustainable Homes was