The role of DECs, ESOS and other Regulation in identifying energy saving opportunities Malcolm Hanna, Technical Director, National Energy Foundation Improving.

The role of DECs, ESOS and other Regulation in identifying energy saving opportunities 

Malcolm Hanna, Technical Director, National Energy Foundation

Improving the use of energy in buildings

Regulatory frameworkCCL, CCAs, EUETS, CCL, EPBD, EPC, DEC, EED, ESOS, Building Regulations Part L, Zero carbon buildings, Planning requirements, Smart Metering, Green Deal, RO, FiT, RHI, ECAs, Climate Change Act, Electricity Market

Reform, Mandatory Carbon Reporting

Increase Energy

Security

Reduce UK emissions

by 80%

Reduce business energy

demand

Increase low carbon

technology use

Encourage business to

manage environmental

impact

Identifying Opportunities

Where are we now?

What does good look like?

Where do we want to be?

How do we get there?

Where are the Opportunities?

Operations – Good housekeeping & maintenance

Technology - enhanced plant, controls, fabric

Behaviour – building users

Procurement – energy efficient options

Design and retrofit – design, specification, build

How do we identify the Opportunities?

Benchmarking

Metering and Monitoring

Surveying and auditing

Modelling and simulation

Benchmarking• Compare performance against similar buildings

• Ideally indicate typical and good performance

• An indicator of opportunity and size (target)

• Engagement tool – simple, recognised

• A starting point for opportunity

Benchmarking – Regulations

Regulations - Energy Performance Certificates

• Asset rating – build, sale or rent

• Energy Act – 2018 F&G unlettable

• Property owners need a strategy – existing & acquisitions - opportunities and costs of compliance and beyond

Source : Bill Bordass based on data courtesy of the Better Buildings Partnership

Regulations - Energy Performance Certificates

Regulations - Display Energy Certificates

Regulations - Display Energy Certificates

Display Energy Certificates – new opportunities

Surveys and Audits

Technical

Walk-around Management and

behaviour

Organisation level audits (procurement and behaviour)

Surveys and Audits – Regulatory requirements

• DEC Advisory Report

• EPC Recommendations Report

• Air conditioning inspections (>12kW)

• Building Regulations Part L – consequential improvements

• Energy Savings Opportunity Scheme (ESOS)

ESOS – The Regulations

ESOS – an opportunity

• Opportunity to find savings – size of the prize

• Organisational focus – support and engagement

• Site-based ‘hard’ evidence as a basis for action

• Typical savings identified 20-25% (5-15% no / low capital).

• Need a strategy - what you want from the assessment

• Your priorities, which buildings, what detail

• Minimum compliance or maximum benefit?

Other Regulations

• Zero carbon new buildings landscape 2019

• Metering

• Smart meters - all small non-domestic by 2020

• Sub metering – Part L – 90% energy to be metered by end use

• Opportunity area - performance gap

Building Energy Metering CIBSE TM39

• 4 year research programme

• Over 100 new build and retrofit

• Energy use 2.5 times predicted – and more

Opportunities – Design and retrofit

Credit: Technology Strategy Board (Innovate UK)

Ensure your building project is not only designed green but delivered green

Save costs, energy and carbonImprove comfort

Opportunities – Design and retrofit

Emerging themes

• Commissioning – no buildings fully commissioned • Sub-meters – not functioning or understood• BMS – training, complexity, functionality• Controls – complexity and labelling• Lighting – too much and inability to control• Fabric performance – specification and build• HVAC – integration and control of multiple systems • Renewables – installation, operation and maintenance

https://connect.innovateuk.org/web/building-performance-evaluation

In Summary

• Increasing Regulator burden

• Provide a focus and an imperative

• Represent a basis for new action

• Can help to remove some of the barriers

• New opportunities to make them work for you

National Energy Foundation (NEF)

The National Energy Foundation is an independent charity that has been at the forefront of improving the use of energy in buildings since 1988.

www.nef.org.ukMalcolm.hanna@nef.org.uk

Improving the use of energy in buildings