Energy Efficiency in Permanent Modular Construction NREL Research Project Poster
Kerry mashford - nef - understanding, delivering and validating building performance
1. Improving the use of
energy in buildings
Understanding, Delivering and
Validating Building Performance
Dr Kerry J Mashford, Chief Executive,
National Energy Foundation
CPA Networking Forum, 12th February 2013
2. The National Energy Foundation (NEF)
• Charitable Foundation Formed in 1988 –
25 years old
• Established first European Domestic
Energy Rating System (NHER) in 1990
• Primary Objective – Improving the use of
energy in buildings
• Outcome focussed
3. NEF – Who are we today?
• Everything we do contributes to our objective to improve the use of energy
in buildings
• Provide services for public and private sector to help reduce energy use and
reduce carbon emissions, for domestic and non-domestic buildings, be they
new or existing
• Focus on energy efficiency and sustainable energy
• Work by to:
• Inspiring action by individuals, organisations and communities
• Building capacity and capability
• Advancing knowledge
• Provide robust tools and advice to help close the Performance Gap
• Most projects in UK, but some in Europe/Asia
• Work in partnership with Energy Efficiency Partnership
for Buildings (EEPB) which is now a subsidiary of NEF
4. NEF work in performance & closing
the performance gap
• Field trials, engagement, technical assessment
• Process issues with installation, use etc. – root
cause analysis
• Stock modelling and portfolio planning
• Different scales, points in lifecycle run research
and investigation projects, information
programmes, policy investigation and advice.
7. Technology Strategy Board - Building
Performance Evaluation Programme
• New-build domestic and new-build + refurbished
non-domestic
• Over 100 projects
• Studies at
• completion, handover and early occupation
• in-use – 2 years
• Benefits to study building, future buildings,
building and refurb delivery process
9. Building Performance Evaluation
Programme –domestic by structure
• Total number of dwellings in the programme is 366,
• Represents developments with a total of 3989 dwellings
= equating to a 9% assessment of all developments.
Credit: Technology Strategy Board
10. Outputs from TSB BPE programme
Emerging themes Current analysis
• Commissioning • Production of ~8 case studies
• Sub-meters and • Overview of the BPE programme building
portfolio
reconciliation
• Non-domestic Initial Studies – summary
• BMS
report
• Controls / complexity
• Early learning from non-domestic
• Lighting – too much projects
and inability to • Industry capability, costs and appetite for
control BPE
• Fabric performance • Seeking the best strategy for low carbon
homes
• MVHR systems
• Meta-study of MVHR systems in new
housing
Credit: Technology Strategy Board
Mat Colmer – Lead Technologist
12. • New build
TSB BPE - individual studies, Evaluator support, generic
learning
Design specification, test and inspection guidance
• Retrofit and Refurbishment
Green Deal GDPG – making the Green Deal deliverable
Re:Start Local – local SME retrofit supply chain
Green Deal Pioneer Places – early uptake
SuperHomes – open days planned for March
Non-domestic green deal surveys
Whiscers – IWI solution (with SEA)
13. • Performance in practice – field trials etc.
• Communal heating scheme study
• Energy use feedback impact study – individual & community
• Ground Source Heat Pump Association
• Carbon Trust Standard
• Corporate carbon footprinting
• EEPB
• Windows, doors and conservatories
• Microgeneration specific SAP
14. WHISCERS – partnership with SEA
1. A 3D laser scanner measures the internal dimensions of a room. The digital
data is then downloaded to an off-site cutting machine.
2. The machine cuts the insulation boards with great accuracy. Software
optimises the cut to minimise wastage.
3. The boards are delivered to site as a kit and are then fitted to the walls
with the minimum of noise, mess and disruption.
15. WHISCERS - Benefits
• Developed with residents in mind: speedy process that
minimises mess and disruption in the home.
• Accuracy of measurement: high accuracy laser scanning
• Speed of measurement: the dimensions of a typical wall can
be collated in 10 minutes c.f. 30 minutes by traditional methods
- typical three bedroom house surveyed in 60 to 90 minutes.
• Automated, off-site cutting using a CNC cutting machine:
little mess in the home, greater accuracy and lower material
costs than hand-cutting. Less material waste.
• Faster Installation: boards arrive on site and can generally be
fitted in 90 minutes per room or less, with lower labour costs.
• Residents can remain at home: Less disruption, no relocation
costs, minimum noise, mess and faster process.
16. WHISCERS - Benefits
• WHISCERS™ is a win, win solution for housing providers
and residents for transforming hard-to-treat properties
into easy-to-heat homes.
• 2011: Inside Housing Innovation Award; and the Energy
Institute Innovation Award.
• 2012: 'Building Fabric of the Year' category at the Retro
Expo Awards 2012. The judges commented: "The system
demonstrated great process innovation with high potential
impact".
Post refurbishment monitoring being undertaken part of TSB
R4tF project and planned for Eracobuild project
19. Four application areas for BPE
• Validate and debug a newly delivered building (or newly
refurbished building) - ≈ 10- 30% energy saving
• Establish the performance of a building prior to
refurbishment and inform investment decisions – greater
energy savings per £ invested
• Track and inform continuous improvement of existing
buildings as an FM process – avoid rising energy demand
– (+0 >energy demand >- 3%)
• In a product development cycle where the product is a
particular building type, model or element – performance
confidence, reduce risk
20. Building an Evidence Base
Understand measurement &
monitoring protocols and
Report findings and
share knowledge Measure & reporting methodologies
monitor
Tailored
benchmarking &
performance
databases
Implement Compare &
response quantify
Need to Really unpick the
address the
cause not the
Devise Root cause reasons for prediction
and practice being
symptom response analysis different
Case study productionCompilation of case studies (dom and non-dom), to be finalised by the end of March.Non-Domestic Initial Studies - Summary ReportAnalysis of the 85 Initial Studies to extract learning and collate commonalities and themes.Early learnings from non-domestic projectsAnalysis and evaluation of some key trends across the Full Stage non-domestic buildings, considering the impact of different measures and strategies.Industry capability, costs and appetite for BPEBegin to measure the programmes effectiveness of encouraging the industry to take up wider BPE and to start understanding the price-point where BPE will have a wider uptake. Seeking the best strategy for low carbon homesBuilding on some preliminary analysis; this work will draw out lessons for whole homes; highlighting strategies and technologies that do /don't work. Meta-study of MVHR systems in new housingA meta-study of BPE and R4F domestic projects that utilise MVHR systems. The study will collect, collate and analyse data across these projects to draw conclusions on good or poor system performance.
