New Rules for Mariana Trusson

Transcription

1 New Rules for 2015 Mariana Trusson

2 New Rules for 2014 Introduction to Cundall Changes to Section 6 Section 7 National Calculation Methodology NCM predictions vs Real Energy Consumption Questions

3 About Cundall Established for nearly 40 years Multi-disciplinary consultancy High level of repeat business Sustainable designers One Planet Company

4 Our locations 20 offices in 11 countries 400+ staff

5 Cundall services Building services engineering Civil engineering Structural engineering Sustainable design Acoustic engineering Building Information Modelling (BIM) Building automation CDM coordination Data Centre Infrastructure Management (DCIM) Fire engineering Geotechnical and geoenvironmental IT and audio visual Lighting design Planning Survey solutions Transportation Vertical transportation To find out more about our services visit

6 Section 6 New Rules For 2015

7 Path to Zero Carbon? Section 6 was developed to reduce energy demands and emissions in buildings Revised BREEAM 01/07/2014 Revised Section 6 Revised Section 7(?) Green deal updates Revised BREEAM EU Nearly zero energy non domestic new buildings Revised BREEAM EU Nearly zero energy domestic new buildings Total life zero carbon buildings

8 Zero Carbon Trajectory Domestic 2007 Baseline % reduction % reduction 2021 Zero Carbon Non Domestic 2007 Baseline % reduction % reduction 2019 Zero Carbon = 21% less than 2010 = 43% less than 2010

9 Changes from 2010 The Same Compliance Criteria 6.1 CO 2 Emissions Minimum standards Fabric & HVAC 6.7 Commissioning 6.8 Log Book 6.9 EPC 6.10 Metering

10 Changes from 2010 Notional Building - the actual backstops Big changes U values Wall: 20-30% better than 2010 Floor: 15-20% better than 2010 Glazing: 15-20% better than 2010 Thermal bridging 50% better than 2010 and all to BS EN ISO 10211:2007 Airtightness 7/5/3 back stop values depending on type and testing always

11 Thermal Bridging ƛ = 0.05 Default = 0.08

12 Changes from 2010 Heating efficiencies 7-13% better than 2010 Lighting 15-20% better than 2010 with daylight and occupancy control throughout Specific fan power Improved Photovoltaics 4.5% of floor area Non dom 25% of floor area dom

13 Fan power Offices Bigger AHUs & ducts to reduce fan energy

14 Changes from 2010 General guidance In line with England and Wales Allowable solutions Featured in Zero Carbon Hub Improved lighting efficacies But LENI not mentioned Improved plant efficiencies

15 Achieving the TER Domestic MVHR Acknowledged that occupant by-in is ESSENTIAL Not for summer time ventilation for the majority of the population Reduces operational energy by 5%

16 Achieving the TER Domestic ASHP Renewable Energy? Not in Scotland!

17 Air Source Heat Pumps Heat Pump vs. Gas Fired Boiler Gas Fired Boiler Gas ASHP Target DER

18 Air Source Heat Pumps Heat Pump vs. Gas Fired Boiler Heat Pump SAP uses COP Gas ASHP Target DER

19 Air Source Heat Pumps Heat Pump vs. Gas Fired Boiler Gas ASHP Target 40% less carbon than gas fired boiler DER

20 Air Source Heat Pumps Energy Saving Trust Heat pumps may not be the best option for homes using mains gas

21 CO2 Emissions (kgco2/m2) Achieving the TER Non Domestic Offices BER TER DHW Lighting Auxiliary Cooling Heating LED Lighting Bigger AHUs & ducts to reduce fan energy Maximising Daylighting

22 CO2 Emissions (kgco2/m2) Achieving the TER Non Domestic Retail DHW Lighting Auxiliary Cooling Heating 0 BER TER It s all about the Lighting!

23 PV on City Centre office building 10 storeys, 10,000m 2 105kgCO 2 e/m 2 of GIA 466m 2 of PV panels No overshadowing How much carbon does this save? 4.5kgCO 2 e/m 2 of GIA 4% of carbon

24 Zero carbon office? 15,000m 2 of PV panels = 105kgCO 2 e/m 2 1.5m 2 of panel per 1m 2 of floor

25 Section 7 Have you been paying attention?

26 A bigger picture Section 7 was developed to encourage more demanding sustainability standards and to further the achievement of sustainable development Energy Material Use & Waste Water Sustainability label Flexibility & Adaptability Biodiversity Wellbeing

27 Applicability All Domestic All Non-Domestic Schools through the whole process Others just the CO 2 (for now!) All on display

28 Implementation Domestic and Nondomestic: aspects identical labelling scheme identical Bronze Silver Gold Platinum

29 Implementation Dom. CO 2 (improvement on 2007) Bronze Section 6 compliance Silver 45% Gold 60% Platinum 100% Non-Dom. CO 2 (improvement on 2007) Bronze Section 6 compliance Silver 50% Gold 75% Platinum 100% Active! Inclusion of LZCGT: Heat pump (all flavours) Wind turbine Water turbine Solar thermal Photovoltaics CHP (from low emission sources) Fuel cells Biomass Biogas

30 Domestic Energy for space heating Silver 40/30 kwh/m 2 Gold 30/20 kwh/m 2 Energy for water heating Silver 5% heat recovery or renewables Gold 50% heat recovery or renewables Water use efficiency Silver flush volumes, taps, showers, water butt Gold flush volumes, taps, showers, water butt, rainwater recycling, water meter

31 Achieving the Silver Domestic Shower water heat recovery Recovers 50% of the heat 3 year payback Reduces operational consumption by 8%

32 Domestic Optimising performance Silver Quick start guide, Resource use display Gold Silver + functionality Flexibility and adaptability Silver Home office Gold Silver + mobility space + Storage Wellbeing and security Silver Noise separation, daylighting, alarm Gold Silver +higher spec + outdoor space

33 Achieving the Silver Domestic

34 Domestic Material Use and Waste Silver Recycling Gold Silver + Design for deconstruction!

35 Non - Domestic Energy for Thermal Comfort and Artificial lighting Silver Absence detection, optimum start stop, dead bands, weather comp, heat recovery, SOLAR GAIN Gold silver + BMS, Draught lobby Water use efficiency Silver 10% heat recovery or renewables, flush volumes, taps, showers, SUDs Gold 50% heat recovery or renewables, flush volumes, taps, showers, SUDs for 100% of rainfall

36 Achieving Silver Non- Domestic Limiting Solar Gains

37 Non-Domestic Biodiversity Silver Allotment 5%, Natural boundaries 25%, natural habitat, 15%, Strategy Gold Silver + functionality Wellbeing and security Silver daylight 75% at 3%, IAQ 1500ppm, Acoustics, 3.5m/3m room heights! Gold daylight 100% at 4%, IAQ 1500, Acoustics, 3.5m/3m room heights! Flexibility and adaptability Silver Cycle storage1/20, Active travel facilities, external teaching Gold Silver + Cycle storage1/10, Changing places facilities

38 Non-Domestic Material Use and Waste Silver Recycling Gold Silver + SWMP Optimising Performance Silver Building User guide, resource use display Gold Silver +

39 Will it cost? YES Silver + 11% Gold + 26%

40 How Design Declare level at Warrant submission Construction Generate label Affix Submit with completion certificate

41 NCM

42 National Calculation Methodology (NCM) Appeared 2002 TM32 Replaced ECON 19 Data 1980s Different software give different results Different operators give different results

43 National Calculation Methodology (NCM) Only included regulated systems: Heating Cooling Domestic hot water Fans and pumps Internal lighting Office Annual CO 2 Emissions 1% 10% 5% 7% 16% 5% Heating Domestic hot water Fans and Pumps Cooling 25% 13% Lighting Small Power Lifts 18% Catering External Lighting

44 National Calculation Methodology (NCM) Only included regulated systems: Heating Cooling Domestic hot water Fans and pumps Internal lighting Does not include Lifts Small power & equipment Appliances Catering External Lighting 47% Office Annual CO 2 Emissions 5% 1% 16% 13% Heating Domestic hot water Fans and Pumps Cooling Lighting 18% Small Power

45 National Calculation Methodology (NCM) Looks at energy efficiency NOT energy consumption Lighting

46 National Calculation Methodology (NCM) Energy efficiency NOT consumption Lighting 65 Lumens / circuit watt 200 Lux 6 W/m 2 Efficacy: 65 Lumens / circuit watt

47 National Calculation Methodology (NCM) Energy efficiency NOT consumption Lighting A B 65 Lumens / circuit watt 200 Lux 6 W/m 2 65 Lumens / circuit watt 600 Lux 18 W/m 2

48 kwh/m2 kwh/m2 National Calculation Methodology (NCM) Energy efficiency NOT consumption Lighting A B Real Energy Consumption NCM Consumption - Efficacy A B 0 A B

49 National Calculation Methodology (NCM) New Lighting Energy Numeric Indicator (LENI) Calculation Takes into account controls Assess the whole system not just the luminaire Includes parasitic loads Real energy and not efficiency A very detailed calculation

50 kwh/m2 kwh/m2 National Calculation Methodology (NCM) Energy efficiency NOT consumption Air volumes Fan Power = 2.0W/l/s 10 l/s per person Fan Power = 2.0W/l/s 30 l/s per person Real Energy Consumption NCM Consumption l/s/p 30 l/s/p 0 10 l/s/p 30 l/s/p

51 kwh/m2 kwh/m2 National Calculation Methodology (NCM) Energy efficiency NOT consumption Air volumes Fan Power = 2.0W/l/s 10 l/s per person Fan Power = 1.8 W/l/s 30 l/s per person Real Energy Consumption NCM Consumption l/s/p 30 l/s/p 0 10 l/s/p 30 l/s/p

52 National Calculation Methodology (NCM) Energy efficiency NOT consumption Air volumes 4 pipe fancoil units Displacement Ventilation Active chilled beams

53 kwh/m2 kwh/m2 National Calculation Methodology (NCM) Energy efficiency NOT consumption Air volumes Fan Power = 2.0W/l/s Fancoils 1.2 l/s/m 2 Variable Fancoils 1.2 l/s/m 2 Chilled Beams 1.6 l/s/m 2 Displacement 3.0 l/s/m 2 Real Energy Consumption NCM Consumption Fancoil Variable Fancoil Chilled Beam Displacement Terminal AHU Fancoil Variable Fancoil Chilled Beam Displacement

54 National Calculation Methodology (NCM) NOT real AHU heating Heated Supplied at 18 o C Fresh Air

55 National Calculation Methodology (NCM) AHU heating 30 Ambient Air Temperatures ( o C)

56 National Calculation Methodology (NCM) AHU heating 30 Ambient Air Temperatures ( o C)

57 National Calculation Methodology (NCM) AHU heating The NCM puts all air directly into space Internal gains offset heating load

58 CO2 Emissions (kgco2/m2) National Calculation Methodology (NCM) Looks at energy efficiency NOT energy consumption AHU heating DHW 40 Lighting 30 Auxiliary 20 Cooling 10 Heating 0 BER TER

59 CO2 Emissions (kgco2/m2) National Calculation Methodology (NCM) Looks at energy efficiency NOT energy consumption AHU heating DHW 40 Lighting 30 Auxiliary 20 Cooling 10 Heating 0 BER TER Real Why?

60 National Calculation Methodology (NCM) 20% 17% 18% Pass 15% 10% 5% 5% 0% -5% TAS IES IES - sbem sbem -10% -15% Fail -20% -25% -23%

61 CO 2 Target Approved software comparison % 8.5% 8.3% -1.1% TAS IES IES SBEM ISBEM Standard U Values TAS IES IES SBEM ISBEM % 17% 10.6% 4.2% TAS IES IES SBEM ISBEM Good U Values TAS IES IES SBEM ISBEM And different proportions

62 National Calculation Methodology (NCM) Effect on planning renewables requirements 10% of what? % TAS IES IES - sbem sbem

63 Measurement Tools in the UK Energy Energy Performance Certificate (EPC) Display Energy Certificate (DEC) (not Scotland yet) Environmental BREEAM BREEAM-in-Use LEED LEED EBOM SKA CEEQUAL

64 EPC v operation (virtual v reality) Actual energy consumption EPC Ratings Source: A Tale of Two Buildings, JLL / BBP, 2012 No correlation between EPC and actual energy consumption

65 Best practice? Benchmarking needs to include occupancy

66 The whole carbon footprint of buildings

67 Typical city Breakdown centre air con by category office Operating: 150kgCO 2 e/m 2 /year 24% kdown by category Embodied (initial): 700kgCO 2 e/m 2 Embodied (in-use): 550kgCO 2 e/m 2 9% 67% Operating Embodied Transport 67% Commuting: 800kgCO 2 e/person/year Operating Embodied Transport 60 year period No energy supply decarbonisation included Source: What Colour Is Your Building, David Clark, RIBA Publishing 2013

68 Nearly zero Breakdown energy office by category - rural kdown by category 14% 15% Operating: 20kgCO 2 e/m 2 /year Embodied (initial): 700kgCO 2 e/m 2 Embodied (in-use): 550kgCO 2 e/m 2 14% 15% 71% Commuting: 1500kgCO 2 e/person/year Operating Embodied Transport 60 year period No energy supply decarbonisation included Operating Embodied Transport Source: What Colour Is Your Building, David Clark, RIBA Publishing 2013

69 Conclusion START NOW Change Specialisms required Acousticians Ecologists Sustainability champions (?) Equipment important Lighting and daylight controls important Software and operators need consideration and is scheduled to be Zero Carbon or Building Tax (?)

70 Questions?