Sustainability & Energy Statement
Land at 168 Gloucester Road, Patchway, Bristol
2 Table of Contents Executive Summary 3 1.0 Introduction 4 2.0 Planning policies 5 3.0 Assessment methodology 9 4.0 Proposal 9 5.0 Energy Efficiency 10
5.1 Demand Reduction (Be Lean) 10
• Passive design measures • Active design measures
5.2 Establishing Carbon Dioxide Emissions 12
• SAP calculations
5.3 Low-Carbon and Renewable Technologies (Be Clean and Be Green) 13
5.4 Summary of Calculations and Proposals for Low-carbon and Renewable
Technologies 16
6.0 Climate Change Adaption and Water Resources 17
• Sustainable drainage systems (SuDs) • Water efficiency measures
7.0 Materials 18
Appendix 1: BRUKL Calculation for the Building
Appendix 2: Roof Plan showing Approximate Location of Photovoltaic Panels
3
Executive Summary
This Statement has been prepared in support of a planning application for the redevelopment of the site at 168 Gloucester Road in Patchway, Bristol to provide a B8 storage building of circa 6,731 m2 for use
as a self-storage facility with ancillary office accommodation.
The Statement includes an energy demand assessment showing how selected energy efficiency, low carbon and renewable energy measures have been considered and those, which have been incorporated into the scheme.
It is proposed to enhance the fabric insulation standards above the minimum required by the Building Regulations and a number of BRUKL calculations have been prepared to test different scenarios for providing space heating and hot water to the building.
The calculations provide an accurate assessment of the total carbon dioxide emissions arising from the site and allow the testing of different technologies. Appendix 1 includes the BRUKL calculation based on the proposed specification but before the installation of any low-carbon and/or renewable technologies for the modelled unit.
Whilst the planning policy does not require a specific reduction from energy efficiency measures or renewable technologies the Applicant is committed to developing a sustainable scheme and therefore has set a self-imposed target to achieve a 10% reduction in emissions through the installation of renewables.
In addition to the energy efficiency measures incorporated into the building it is proposed to install a total of 32 x 400W photovoltaic panels. These will be installed on the flat roof of the building and an indicative layout showing the approximate location of the panels is attached as Appendix 2.
The reductions in carbon emissions can be summarised as follows:
Carbon Emissions Reduction %
kg CO2 per year %
Maximum Building Regulations (TER) 60,137
CO2 emissions after energy efficiency (BER) (Be Clean) 59,454 1.14%
(of TER) CO2 emissions after EE and renewable technologies (Be Green) 53,406 11.19%
(of TER) Reduction from Renewable Technologies 6,048 10.17% (of BER)
4
1.0 Introduction
This report has been commissioned by GGT Estates and Bristol North Ltd and provides a Sustainability and Energy Statement for the redevelopment of the site at 168 Gloucester Road in Patchway, Bristol to provide a B8 storage building of circa 6,731 m2 for use as a self-storage facility with ancillary office
accommodation.
The report describes the methodology used in assessing the development and the initiatives proposed. The building has been designed and will be constructed to reduce energy demand and carbon dioxide emissions. The objective is to reduce the energy demand to an economic minimum by making investment in the parts of the construction that have the greatest impact on energy demand and are the most difficult and costly to change in the future, namely the building fabric.
The following hierarchy has been followed:
• Lean reduce demand and consumption
• Clean increase energy efficiency through the incorporation of low-carbon technologies • Green provide renewable energy sources
5
2.0 Planning Policy Context
National Policy
The UK Government published its sustainable development strategy in 1999 entitled “A better quality of life: A strategy for sustainable development in the UK”. This sets out four main objectives for sustainable development in the UK:
• Social progress that recognises the needs of everyone. • Effective protection of the environment.
• Prudent use of natural resources.
• Maintenance of high stable levels of economic growth and employment.
Sustainable Communities: Building for the Future, known colloquially as the Communities Plan was published in 2003. The Plan sets out a long-term programme of action for delivering sustainable communities in both urban and rural areas. It aims to tackle housing supply issues in parts of the country, low demand in other parts and the quality of our public spaces. The Communities Plan describes sustainable communities as: Active, inclusive and safe, well run, environmentally sensitive, well designed and built, well connected, thriving, well served and fair for everyone.
The most relevant national planning policy guidance on sustainability is set out in: • National Planning Policy Framework - 2019
Paragraph 148 states;
6
Local Policies
The planning policies are set out in the South Gloucestershire Local Plan, which comprises three documents; the Core Strategy 2006-2027 (adopted in December 2013), the Joint Waste Core Strategy and the Policies, Sites and Places Development Plan Document (DPD) (adopted in November 2017). Of particular relevance to the topic area of this Statement from the Core Strategy are the following policies, which have been abridged for clarity.
Policy CS1 – High Quality Design
8. ensure the design, orientation and location of buildings, roof pitches, windows, habitable rooms, lighting and soft landscaping help to achieve energy conservation, the protection of environmental resources and assist the appropriate siting of renewable and/or low carbon energy installations and infrastructure. Schemes that can demonstrate that they will outperform statutory minima, such as the building regulations, in terms of sustainable construction, at the time of construction commencement, will be considered a primary indicator of good design. All new developments will be required to meet the building regulations current at the time of full planning or reserved matters approval. Until the ‘Zero Carbon’ building regulations are implemented major residential (10 or more dwellings) and mixed-use schemes will be encouraged to achieve full compliance with each Code level (currently level 3) or above, and/or Building Research Establishment Environmental Assessment Method (BREEAM) ‘very good’ or other equivalent standard; and
Policy CS3 – Renewable and Low Carbon energy Generation
Proposals for the generation of energy from renewable or low carbon sources, provided that the installation would not cause significant demonstrable harm to residential amenity, individually or cumulatively, will be supported.
In assessing proposals significant weight will be given to:
1. the wider environmental benefits associated with increased production of energy from renewable
sources
2. proposals that enjoy significant community support and generate an income for community infrastructure purposes by selling heat or electricity to the National Grid
3. the time limited, non-permanent nature of some types of installations; and
4. the need for secure and reliable energy generation capacity, job creation opportunities and local economic benefits.
7
Developments will also be required to meet objectives of Policy CS1 (High Quality Design), as far as engineering requirements permit.
Policy CS4 – Renewable or Low Carbon District Heat Networks
Any applications to develop a thermal generating station or proposals that have a capacity to generate significant waste heat as part of an industrial or commercial process must either:
1. include heat recovery and re-use technology; and
2. heat distribution infrastructure; or
3. provide evidence that heat distribution has been fully explored and is unfeasible.
Major development proposals (more than 100 dwellings that are wholly or in part greater than 50dph, or non-residential of more than 10,000sqm) should, where practical and viable: *
4. include renewable or low carbon heating or CHP generation and distribution infrastructure on-site and demonstrate how opportunities to accommodate an energy and or district heating solution have been maximised, taking into account density, mix of uses, layout and phasing; or 5. connect to an existing renewable or low carbon heat distribution network; or
6. provide a heat distribution network as part of the development where there are firm proposals for renewable or low carbon heat generation or CHP and distribution in the locality within a reasonable time frame; or
7. provide evidence that renewable and low carbon sources of heating or CHP have been fully
explored and are unfeasible.
Developments of less than 100 dwellings or 10,000sqm of non-residential floorspace should connect to any existing available district heat network(s) in the vicinity, providing this is practical and would not adversely affect the viability of the development.
From the Policies, Sites and Places DPD;
Policy PSP6 – Onsite Renewable and Low Carbon Energy
All development proposals will:
1. be encouraged to minimise end-user energy requirements over and above those required by the
current building regulations through energy reduction and efficiency measures, and in respect of residential for sale and speculative commercial development offer micro renewables as an optional extra, and
8
In addition, all major greenfield residential development will be required to reduce CO2 emissions further
by at least 20% via the use of renewable and/or low carbon energy generation sources on or near the site providing this is practical and viable.
The Council will also take positive account of and support development that provides further energy reduction, efficiency, renewable and low carbon energy measures on or near site, where measures comply with other policies of the plan.
9
3.0 Assessment Methodology
The emissions from the building have been established by preparing a number of BRUKL calculations based on the SBEM methodology.
These calculations have been based upon certain assumptions as to the building specification and these are clarified below. The calculations serve to establish the environmental, technical and economic viability of various renewable and low-carbon technologies.
Emission Factors
The CO2 emission factors, where applicable, used throughout this report have been taken from the
Building Regulation Approved Document L (2013).
Fuel kg CO2/kWh
Natural Gas 0.216
Grid supplied and Displaced electricity 0.519
4.0 Proposal
The accommodation schedule in detail is;
Unit Type Total Area
m2
Ground-Floor
Individual Self-Storage Units (6 number) 526.3
Self-Storage 1,527.6
Reception, Office & Ancillary 120.8
Loading Bay 158.0
First-Floor
Self-Storage 2,013.2
Offices and Ancillary 175.4
Second-Floor
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5.0 Energy Efficiency
5.1 Demand Reduction (Be Clean)
Design
The energy performance of a building is affected by its design, construction and use and whilst occupant behaviour is beyond the remit of this statement, better design and construction methods can significantly reduce the life cycle emissions of a building and assist the occupant to reduce consumption.
It is possible to exceed Building Regulations requirements (Part L - 2013) through demand reduction measures alone, which typically include a combination of passive design measures (e.g. building design and efficient building fabric) and active design measures (e.g. variable speed motors).
Efficient Building Fabric Building Envelope
The U-values of the building envelope must meet Building Regulations Part L (2013) standards and further improvements to U-values will reduce the building’s heating requirements.
There is a commitment to exceed the minimum U-values required by the Building Regulations. The construction suits the use of a framed structure with insulated cladding.
It is proposed to set maximum limits for the elemental U-values as follows:
Element Proposed U-values
W/m2K
Ground Floors 0.15
Separating Floors between heating and unheated spaces 0.20
External Walls 0.26
Roof 0.15
Windows 1.40
External Doors 1.40
Air Leakage
11 The Building Regulations set a minimum standard for air permeability of 10 m3 of air per hour per m2 of
envelope area, at 50Pa for new buildings.
The building will seek to achieve a 50% improvement over the Part L requirement and will target a permeability of 5.0 m3/hr/m2.
Thermal Bridging
Improving the U-values for the main building fabric without accurately addressing the thermal bridging of the various element will not achieve the fabric energy efficiency and CO2 reduction targets set out in this
strategy.
Ventilation
As a result of increasing thermal efficiency and air tightness, Building Regulations Approved Document F was also revised in 2006 to address the possibility of overheating and poor air quality. Individual mechanical extract ventilation units will be used for control of air quality and installed in appropriate areas.
Active Design Measures will include; Efficient Lighting and Controls
All light fittings will be of a dedicated energy efficient type. Daylight and PIR sensors will also be used in communal areas.
External lighting will be fitted with time controls and light sensors to ensure illumination is restricted to required times. External lighting will be limited to a maximum fitting output of 150w.
Heating
Different heating systems will be used in different locations determined by use. The reception area will be provided with a ceiling cassette system, the offices will be provided with direct electric panel heaters and the individual storage units (facing Gloucester Road) will be provided with electric boilers serving (wet) radiators.
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5.2 Establishing Carbon Dioxide Emissions
The emissions have been established by preparing a number of BRUKL calculations using the SBEM methodology.
Be Lean
The baseline ‘Be Lean’ BRUKL calculation is attached as Appendix 1, which is based upon Part L 2013 and uses current carbon emissions factors. The BRUKL attached is before the installation of renewables. The energy consumption can therefore be summarised as follows:
B8 Accommodation Energy Consumption Notional Energy Consumption Actual kWh/m2 kWh/m2 Space heating 15.20 11.80 Cooling 0.09 0.35 Auxiliary 0.52 0.76 Lighting 7.07 4.23 Water heating 0.17 0.15 Equipment * 1.53 1.53 Total 23.05 17.29
* Energy used by equipment does not count towards calculating emissions. The emissions can therefore be summarised as follows:
Accommodation Area TER CO2 Emissions BER CO2 Emissions Total TER CO2 Emissions Total BER CO2 Emissions kg CO2 /m2 kg CO2 /m2 kg CO2 /yr kg CO2 /yr Storage Building 6,833.8 8.80 8.70 60,137 59,454 Totals 60,137 59,454
The maximum carbon dioxide emissions (based on the TER) are assessed as;
• 60,137 kg CO2 per year
With the actual carbon dioxide emissions (based upon BER) assessed as;
• 59,454 kg CO2 per year
The reduction in site CO2 emissions as a result of the energy efficiency measures incorporated into the
building is assessed as;
13
5.3 Low-Carbon and Renewable Technologies (Be Clean and Be Green)
This section determines the appropriateness of each low-carbon and renewable technology for the subject site.
The Government’s Renewable Obligation defines renewable energy in the UK. The identified technologies are;
• Small hydro-electric • Landfill and sewage gas • Onshore and offshore wind • Biomass
• Tidal and wave power • Geothermal power • Solar
The use of landfill or sewage gas, offshore wind or any form of hydroelectric power is not suitable for the site due to its location. The remaining technologies are considered below;
Wind
Wind turbines are available in various sizes from large rotors able to supply whole communities to small roof or wall-mounted units for individual buildings.
Roof mounted turbines could be used at the development to generate small but valuable amounts of renewable electricity but the small output and contribution to total emissions means any investment would be small and purely tokenism. In addition the use of wind turbines will have a detrimental aesthetic impact on the appearance of the development.
Combined Heat and Power and Community Heating
Combined heat and power (CHP) also called co-generation is a de-centralised method of producing electricity from a fuel and ‘capturing’ the heat generated for use in buildings. The plant is essentially a small-scale electrical power station.
The production and transportation of electricity via the National Grid is very inefficient with over 65% of the energy produced at the power station being lost to the atmosphere and through transportation. Consequently CHP can demonstrate significant CO2 savings and although not necessary classed as
14 There is insufficient demand to efficiently maintain a CHP unit and the technology is therefore not proposed.
Ground Source Heat Pumps
Sub soil temperatures are reasonably constant and predictable in the UK, providing a store of the sun’s energy throughout the year. Below London the groundwater in the lower London aquifer is at a fairly constant temperature of 12o C. Ground source heat pumps (GSHP) extract this low-grade heat and
convert it to usable heat for space heating.
GSHP operates on a similar principle to refrigerators, transferring heat from a cool place to a warmer place. They operate most efficiently when providing space heating at a low temperature, typically via under floor heating or with low temperature radiators.
Ground source heat pumps could be used subject to satisfactory ground investigation to establish whether the sub-strata is appropriate.
However, there is insufficient ground area to accommodate a ‘slinky’ system and a borehole system would be required.
This would be prohibitively expensive (compared with other methods), which means this technology is not proposed.
Solar
(i) Solar Water Heating
Solar hot water panels use the suns energy to directly heat water circulating through panels or pipes. The technology is simple and easily understood by purchasers.
Solar hot water heating panels are based generally around two types, which are available being ‘flat plate collectors’ and ‘evacuated tubes’. Flat plate collectors can achieve an output of up to 1,124 kWh/annum (Schuco) and evacuated tubes can achieve outputs up to 1,365 kWh/annum (Riomay). Panels are traditionally roof mounted and for highest efficiencies should be mounted plus or minus 30 degrees of due south. Evacuated tubes can be laid horizontally on flat roofs but flat plate collectors are recommended for installation at an incline of 30 degrees.
The use of solar hot water heating panels is feasible and panels could be installed on the flat roof of the building.
However, the hot water load for the building is very small and the installation of solar panels is not proposed.
15
(ii) Photovoltaics
Photovoltaic panels (PV) provide clean silent electricity. They generate electricity during most daylight conditions although they are most efficient when exposed to direct sunlight or are orientated to face plus or minus 30 degrees of due south.
PV panels can be integrated into many different aspects of a development including roofs, walls, shading devices or architectural panels. The panels typically have an electrical warranty of 20-25 years and an expected system lifespan of 25-40 years.
The flat roof of the building provides the opportunity for the installation of a photovoltaic array.
Air Source Heat Pumps (ASHP)
Air source heat pumps operate using the same reverse refrigeration cycle as ground source heat pumps, however the initial heat energy is extracted from the external air rather than the ground.
16
5.4 Summary of Calculations and Proposals for Low-carbon and Renewable Technologies
The total maximum carbon dioxide emissions (TER) from the site are calculated as 60,137 kg CO2 per year with DER CO2 emissions of 59,454 kg CO2 per year.
Various technologies are considered above and wind turbines, combined heat and power, ground source and air source heat pumps are not considered appropriate. Whilst solar hot water heating panels could be used they are not proposed and it is instead preferred to install photovoltaic panels.
Be Lean
The construction standards proposed include U-values, which demonstrate good practice and improve upon those required by the Building Regulations. Air tightness standards are targeted at a 50% improvement upon the minimum required by the Building Regulations.
The reductions in emissions from energy efficiency measures are 683 kg CO2 per year.
Be Green
In addition to the energy efficiency measures incorporated into the building it is proposed to install a total of 32 x 400W photovoltaic panels.
These will reduce emissions by a further 6,048 kg CO2 per year, which equates to a reduction in the (BER) emissions of 10.17%.
17
6.0 Climate change adaption and Water resources
Sustainable Drainage Systems (SUDS)
The Environment Agency flood maps show the site is within Flood Zone 1 and therefore there is a low risk of flooding.
Surface Water Management
A Flood Risk Assessment & Surface Water Drainage Strategy have been prepared and submitted in support of the application.
It concludes that infiltration methods of surface water disposal are not appropriate and underground storage will be provided to store rainwater prior to a controlled discharge via the existing drainage channel to the north east boundary of the site. Discharge will be restricted to greenfield runoff rates.
Water efficiency measures
Water efficient devices will be fully evaluated, and installed, wherever possible.
The specification of such devices will be considered at detailed design stage and each will be subject to an evaluation based on technical performance, cost and market appeal, together with compliance with the water use regulations.
The following devices will be incorporated within the building: • Water efficient taps.
• Water efficient toilets.
18
7.0 Materials and Waste
The BRE Green Guide to Specification is a simple guide for design professionals. The guide provides environmental impact, cost and replacement interval information for a wide range of commonly used building specifications over a notional 60-year building life. The construction specification will prioritise materials within ratings A+, A or B.
Preference will be given to the use of local materials & suppliers where viable to reduce the transport distances and to support the local economy. A full evaluation of these suppliers will be undertaken at the next stage of design.
In addition, timber would be sourced, where practical, certified by PEFC or an equivalent approved certification body and all site timber used within the construction process would be recycled.
All insulation materials to will have a zero ozone depleting potential
Construction waste
Targets will be set to promote resource efficiency in accordance with guidance from WRAP, Envirowise, BRE and DEFRA.
The overarching principle of waste management is that waste should be treated or disposed of within the region where it is produced.
Construction operations generate waste materials as a result of general handling losses and surpluses. These wastes can be reduced through appropriate selection of the construction method, good site management practices and spotting opportunities to avoid creating unnecessary waste.
The Construction Strategy will explore these issues, some of which are set out below: • Proper handling and storage of all materials to avoid damage.
• Efficient purchasing arrangements to minimise over ordering.
Administrative information
Criterion 1: The calculated CO emission rate for the building must not exceed the target
2Criterion 2: The performance of the building fabric and fixed building services should
achieve reasonable overall standards of energy efficiency
Project name
Date: Sun Feb 07 15:58:06 2021
As designed
Toyota Bristol
Building Details
Address: Gloucester Rd, Patchway, BRISTOL, BS34 5BB
Certification tool
Calculation engine: SBEM
Calculation engine version: v5.6.b.0
Interface to calculation engine: SBEM Online Interface to calculation engine version: v4.02 BRUKL compliance check version: v5.6.b.0
Certifier details
Name: Paul Goddard
Telephone number: 01925 733942
Address: , Information not provided by the user,
CO emission rate from the notional building, kgCO /m .annum
2 2 28.8
Target CO emission rate (TER), kgCO /m .annum
2 2 28.8
Building CO emission rate (BER), kgCO /m .annum
2 2 28.7
Are emissions from the building less than or equal to the target?
BER =< TER
Are as built details the same as used in the BER calculations?
Separate submission
Element
U
a-LimitU
a-CalcU
i-CalcSurface where the maximum value occurs*
Wall**
0.35
0.26
0.26
"Wall3183748"
Floor
0.25
0.19
0.2
"Wall3142277"
Roof
0.25
0.15
0.15
"Wall3142278"
Windows***, roof windows, and rooflights
2.2
1.4
1.4
"Window316175"
Personnel doors
2.2
1.4
1.4
"Door98976"
Vehicle access & similar large doors
1.5
-
-
"No external vehicle access doors"
High usage entrance doors
3.5
-
-
"No external high usage entrance doors"
Building fabric
Values which do not achieve the standards in the Non-Domestic Building Services Compliance Guide and Part L are displayed in red.
U = Limiting area-weighted average U-values [W/(m K)]a-Limit 2
U = Calculated area-weighted average U-values [W/(m K)]a-Calc 2 U = Calculated maximum individual element U-values [W/(m K)]i-Calc 2
* There might be more than one surface where the maximum U-value occurs.
** Automatic U-value check by the tool does not apply to curtain walls whose limiting standard is similar to that for windows. *** Display windows and similar glazing are excluded from the U-value check.
N.B.: Neither roof ventilators (inc. smoke vents) nor swimming pool basins are modelled or checked against the limiting standards by the tool.
Air Permeability
Worst acceptable standard
This building
m /(h.m ) at 50 Pa
3 2
10
5
Whole building lighting automatic monitoring & targeting with alarms for out-of-range values
YES
Whole building electric power factor achieved by power factor correction
>0.95
1- HVAC93899
Heating efficiency Cooling efficiency Radiant efficiency SFP [W/(l/s)]
HR efficiency
This system
1
-
-
-
-Standard value N/A
N/A
N/A
N/A
N/A
Automatic monitoring & targeting with alarms for out-of-range values for this HVAC system
YES
2- HVAC94904
Heating efficiency Cooling efficiency Radiant efficiency SFP [W/(l/s)]
HR efficiency
This system
1
-
-
-
-Standard value N/A
N/A
N/A
N/A
N/A
Automatic monitoring & targeting with alarms for out-of-range values for this HVAC system
YES
3- HVAC94905
Heating efficiency Cooling efficiency Radiant efficiency SFP [W/(l/s)]
HR efficiency
This system
4.44
3.85
-
-
-Standard value 2.5*
2.6
N/A
N/A
N/A
Automatic monitoring & targeting with alarms for out-of-range values for this HVAC system
YES
* Standard shown is for all types >12 kW output, except absorption and gas engine heat pumps. For types <=12 kW output, refer to EN 14825 for limiting standards.
1- HWSGenerator59214
Water heating efficiency
Storage loss factor [kWh/litre per day]
This building
Hot water provided by HVAC system
0
Standard value
N/A
N/A
2- HWSGenerator59712
Water heating efficiency
Storage loss factor [kWh/litre per day]
This building
1
-Standard value
1
N/A
Local mechanical ventilation, exhaust, and terminal units
ID
System type in Non-domestic Building Services Compliance Guide
A
Local supply or extract ventilation units serving a single area
B
Zonal supply system where the fan is remote from the zone
C
Zonal extract system where the fan is remote from the zone
D
Zonal supply and extract ventilation units serving a single room or zone with heating and heat recovery
E
Local supply and extract ventilation system serving a single area with heating and heat recovery
F
Other local ventilation units
G
Fan-assisted terminal VAV unit
H
Fan coil units
I
Zonal extract system where the fan is remote from the zone with grease filter
Zone name
SFP [W/(l/s)]
HR efficiency
ID of system type A
B
C
D
E
F
G
H
I
Standard value
0.3
1.1
0.5
1.9
1.6
0.5
1.1
0.5
1
Zone
Standard
ZoneWC
0.3
-
-
-
-
-
-
-
-
-
N/A
ZoneStaff Room
0.3
-
-
-
-
-
-
-
-
-
N/A
ZoneOffice Staff Room
0.3
-
-
-
-
-
-
-
-
-
N/A
ZoneWC
0.3
-
-
-
-
-
-
-
-
-
N/A
General lighting and display lighting
Luminous efficacy [lm/W]
Zone name
Luminaire
Lamp
Display lamp General lighting [W]
Standard value
60
60
22
ZoneStorage
80
-
-
2002
ZoneCirculation
-
80
-
55
ZoneStore 1
80
-
-
118
ZoneMain Store
80
-
-
1541
ZoneMain Store FF
80
-
-
1828
ZoneStore 2
80
-
-
93
ZoneStore 3
80
-
-
86
ZoneStore 4
80
-
-
83
ZoneStore 5
80
-
-
86
ZoneStore 6
80
-
-
79
ZoneStair 2
-
80
-
36
ZoneStair
-
80
-
55
ZoneStair 2
-
80
-
39
ZoneStair
-
80
-
39
ZoneCleaner Room
80
-
-
10
ZoneManagement Office
80
-
-
232
ZoneWC
-
80
-
70
ZoneStaff Room
80
-
-
112
ZoneStair
-
80
-
47
ZoneOffice 1
80
-
-
170
ZoneOffice 2
80
-
-
129
ZoneOffice 3
80
-
-
143
ZoneOffice 4
80
-
-
181
ZoneOffice 5
80
-
-
171
ZoneStair
-
80
-
55
ZoneCirculation 2
-
80
-
31
ZoneOffice 8
80
-
-
175
ZoneOffice 7
80
-
-
168
ZoneOffice 6
80
-
-
125
ZoneOffice Staff Room
80
-
-
94
ZoneWC
-
80
-
50
ZoneStorage Reception
-
80
50
215
ZoneOffice Reception
-
80
50
134
Zone
Solar gain limit exceeded? (%)
Internal blinds used?
ZoneManagement Office
YES (+21.9%)
NO
ZoneStaff Room
N/A
N/A
ZoneOffice 1
NO (-22.8%)
NO
ZoneOffice 2
NO (-19.6%)
NO
ZoneOffice 3
YES (+51.2%)
NO
ZoneOffice 4
NO (-0.2%)
NO
ZoneOffice 5
NO (-47.8%)
NO
ZoneOffice 8
N/A
N/A
ZoneOffice 7
N/A
N/A
ZoneOffice 6
N/A
N/A
ZoneOffice Staff Room
N/A
N/A
ZoneStorage Reception
YES (+66.7%)
NO
ZoneOffice Reception
NO (-53.5%)
NO
Criterion 4: The performance of the building, as built, should be consistent with the
calculated BER
Separate submission
Criterion 5: The necessary provisions for enabling energy-efficient operation of the
building should be in place
Separate submission
EPBD (Recast): Consideration of alternative energy systems
Were alternative energy systems considered and analysed as part of the design process?
NO
Is evidence of such assessment available as a separate submission?
NO
Are any such measures included in the proposed design?
NO
Building Global Parameters
Building Use
Actual
Notional
Area [m ]2 External area [m ]2 Weather Infiltration [m /hm @ 50Pa]3 2 Average conductance [W/K] Average U-value [W/m K]2 Alpha value* [%]* Percentage of the building's average heat transfer coefficient which is due to thermal bridging
6833.8
15265.7
CAR
5
3074.49
0.2
3.23
6833.8
15265.7
CAR
5
3443.49
0.23
16.76
% Area Building Type
A1/A2 Retail/Financial and Professional services
A3/A4/A5 Restaurants and Cafes/Drinking Est./Takeaways B1 Offices and Workshop businesses
B2 to B7 General Industrial and Special Industrial Groups
100 B8 Storage or Distribution
C1 Hotels
C2 Residential Institutions: Hospitals and Care Homes C2 Residential Institutions: Residential schools C2 Residential Institutions: Universities and colleges C2A Secure Residential Institutions
Residential spaces
D1 Non-residential Institutions: Community/Day Centre
D1 Non-residential Institutions: Libraries, Museums, and Galleries D1 Non-residential Institutions: Education
D1 Non-residential Institutions: Primary Health Care Building D1 Non-residential Institutions: Crown and County Courts D2 General Assembly and Leisure, Night Clubs, and Theatres Others: Passenger terminals
Others: Emergency services Others: Miscellaneous 24hr activities Others: Car Parks 24 hrs
Others: Stand alone utility block
Energy Consumption by End Use [kWh/m ]
2Actual
Notional
Heating Cooling Auxiliary Lighting Hot water Equipment*TOTAL**
* Energy used by equipment does not count towards the total for consumption or calculating emissions. ** Total is net of any electrical energy displaced by CHP generators, if applicable.
11.8
0.35
0.76
4.23
0.15
1.53
17.29
15.2
0.09
0.52
7.07
0.17
1.53
23.05
Energy Production by Technology [kWh/m ]
2Actual
Notional
Photovoltaic systems Wind turbines CHP generators Solar thermal systems
0
0
0
0
0
0
0
0
Energy & CO Emissions Summary
2Actual
Notional
Heating + cooling demand [MJ/m ]2 Primary energy* [kWh/m ]2 Total emissions [kg/m ]2
128.62
51.75
8.7
156.36
40.45
8.8
* Primary energy is net of any electrical energy displaced by CHP generators, if applicable.
[ST] Central heating using water: radiators, [HS] Direct or storage electric heater, [HFT] Electricity, [CFT] Electricity Actual Notional 109.4 111.5 18 19 32.4 37.8 0 0 2.1 1.2 0.94 0.82 0 0 1 ----0 ----[ST] No Heating or Cooling Actual Notional 102.4 149.7 15.2 7.1 0 0 0 0 0 0 0 0 0 0 0 ----0
----[ST] Other local room heater - unfanned, [HS] Direct or storage electric heater, [HFT] Electricity, [CFT] Electricity Actual Notional 104.2 221 191.3 123.9 34.4 75 0 0 2.4 3.2 0.84 0.82 0 0 1 ----0
----[ST] Split or multi-split system, [HS] Heat pump (electric): air source, [HFT] Electricity, [CFT] Electricity Actual Notional 94.9 225.4 168.1 74.3 6.1 25.8 31.2 7.6 0 0 4.36 2.43 1.5 2.7 4.44 ----2
----Key to terms
Heat dem [MJ/m2] = Heating energy demand Cool dem [MJ/m2] = Cooling energy demand Heat con [kWh/m2] = Heating energy consumption Cool con [kWh/m2] = Cooling energy consumption Aux con [kWh/m2] = Auxiliary energy consumption
Heat SSEFF = Heating system seasonal efficiency (for notional building, value depends on activity glazing class) Cool SSEER = Cooling system seasonal energy efficiency ratio
Heat gen SSEFF = Heating generator seasonal efficiency
Cool gen SSEER = Cooling generator seasonal energy efficiency ratio
ST = System type
HS = Heat source
HFT = Heating fuel type
CFT = Cooling fuel type
Element
U
i-TypU
i-MinSurface where the minimum value occurs*
Wall
0.23
0.26
"Wall3183748"
Floor
0.2
0.1
"Wall3141867"
Roof
0.15
0.15
"Wall3142278"
Windows, roof windows, and rooflights
1.5
1.4
"Window316175"
Personnel doors
1.5
1.4
"Door98976"
Vehicle access & similar large doors
1.5
-
"No external vehicle access doors"
High usage entrance doors
1.5
-
"No external high usage entrance doors"
Building fabric
U = Typical individual element U-values [W/(m K)]i-Typ 2 U = Minimum individual element U-values [W/(m K)]i-Min 2
* There might be more than one surface where the minimum U-value occurs.
Air Permeability
Typical value
This building
m /(h.m ) at 50 Pa
3 2
5
5
GIA
) 2233.3 m2 Area ( 1:200 1:100 S1 09.11.20 P02 JTC06 SSB TB 11/11/20 P01 0m 2 5 10 25mN
GA Plans: Proposed -JTC06-MAA-ZZ-DR-A-02104 Gloucester Road 01 SCALE 1:100 02104 Drawing Status: Drawing Title: Client: Project Name: www.maa-architects.com w: [email protected] e: 020 8973 0050 t:27 ferry road teddington tw11 9nn the boathouse design studio Description: Rev: S c a le Certificate No. GB2005290 ISO 9001 Architects Limited
This drawing is copyright of Matthew Allchurch
Drawing No: Revision:
Status Code: Project No:
Date: Scale at A1: Scale at A3: Chk: Date: Drw: Roof Plan Roof Plan Final Draft Planning P02 Final Draft 19/11/20 TB SSB
GGT Estates and Bristol North Ltd
