ies faculty – part l, epc’s & the ve (part 1)

IES Faculty – Part L, EPC’s & the VELondon– 7th March 2012

© Integrated Environmental Solutions Ltd.

Session 1 – Niall Gibson•From EPBD to the Present•Where are we now•What’s coming in the future

•BREAK

Session 2 – Michael Pollock•Evolution of the VE-Compliance Features•New VE-Compliance benefits•FAQ based ‘hints and tips’

Q&A Session

Overview


Session 1

Niall Gibson


From EPBD to Present


• First introduced in 1985 following 1984 Building Act: Regulated heating systems and Insulation of services

• Revised in 1990 and again in 1995 to regulate the “Conservation of Fuel and Power”

• 2002:– L1(Dwellings) & L2(Non-Dwellings)– 3 methods for Compliance– Elemental, Whole Building Method or Carbon Emissions Calculation Method– SAP used to calculate Carbon Emissions for dwellings

• 2006:– L1A and L2A (New Build) & L1B and L2B (Existing Buildings)– Introduction of SBEM for Non-Dwelling Compliance– 1 Single method of compliance through 5 Criteria– BER Vs TER or DER Vs TER– Improved standards for U-Values and plant efficiency etc

The Origins of Part L


• European performance of Buildings Directive (EPBD) state the requirements of Energy Performance Certificate (EPC) within:

– Article 10– Article 11– Article 12

• EPC’s first appearance in the UK in 2008

The Origins of EPC’s


• Part L 2010…….

….and Today!


Where Are We Now


Criterion 1 – Achieving the BER

• Target Emission Rate (TER) calculation changed significantly.

• TER now determined by a new 2010 Notional Building.

• Improvement Factors and Low Zero Carbon Factors have been removed.

• The 2010 Part L2A is intended to achieve an aggregate reduction of 25%.

• The reduction therefore between building types will vary.

Part L2A 2010


Criterion 2 – Limits on Design Flexibility

• Limiting Average U-values typically the same as 2006 Regulations.

• System Efficiencies and controls should meet the minimum provisions set out in the “Non-Domestic Building Services Compliance Guide”.

• Minimum requirements for Lighting Efficiency now falls under Criterion 2.

Part L2A 2010


Criterion 3 – Limiting the Effects of Solar Gains in Summer

• Significant Change in Calculation Method from L2A 2006 Regulations

• Now only one means to demonstrate compliance.

• Compliance is met by showing that aggregated Solar Gain does not exceed a Benchmark level.

• Applicable to all occupied, non transient spaces regardless of their conditioning level.

• IESVE would always reiterate the importance of investigating overheating

Part L2A 2010


The Target Emission Rate

• The TER is now the Notional Building Emission Rate

• Improvement Factors and Low Zero Carbon Factors no longer exist in calculation

• The 2010 NCM Modelling Guide details the properties for the 2010 Notional Building.

• This new approach has the advantage of allowing the Actual and Notional Buildings to be directly compared to identify key areas where improvement is required.

The 2010 Notional Building


2010 keys points:•25% improvement over 2006 standards for New Build (Aggregate Approach)•Minor Alterations to SBEM to reflect changes•Criterion 3 – Overheating calculations simplified calculations, onerous compliance•Thermal bridging constraints•Compliance required with Design Stage submission pre-start•25% proved challenging (Good Holistic design essential, vehicle for BIM?!)•2013 is around the corner and 2016 seems much closer…..

– Zero carbon Homes & Schools by 2016– All Public Building stock by 2018– All new build by 2019

Part L 2010


IES Certification

• Frequent online and face to face training sessions offered to meet customers needs – contact [email protected] for more information.

• IES Accreditation exams covering Levels 3, 4 & 5 available at test centres across the country.

Accreditation


What’s Coming in the Future


“from 2016 all new homes, and from 2019 all new non-domestic buildings, will be

built to zero carbon standards.” Rt Hon Grant Shapps MP


“

Zero Carbon Definition• The proposed new definition is simply represented (below).

– the target for Carbon Compliance is currently expected to be a 70% reduction of regulated energy use compared to 2006 Standards.

Source: zerocarbonhub.org


• Market driven approach with parameters set by Government.

• New financing arrangement – attached to the meter.

• Install a package of measures that pays for itself over time.

• Support for poorer households and certain installations

• Consultations has now closed – received over 600 responses.

• Government will publish formal responses in late spring 2012.

• Launch of Green Deal in October 2012 for Domestic.– Non-Domestic to follow later

The Green Deal


The Green Deal Overview

DECCDECC

BSI PAS InstallerStandard / Advisor

Standard

BSI PAS InstallerStandard / Advisor

Standard

UKAS Accrediting Standards

UKAS Accrediting Standards

(Accredited) Certification Bodies(Accredited) Certification Bodies

Approved (Certified) Advisors & InstallersApproved (Certified) Advisors & Installers

Oversight BodyOversight Body

Green Deal Code of Practice

Green Deal Code of Practice

Green Deal Advisor Qualifications

Green Deal Advisor Qualifications

Issues QualityMark


Green Deal Process

Remote Advice:

•Independent and Impartial advice via telephone and internet•Signposting service to other parts of the Green Deal e.g. assessment, installation etc


Green Deal Process

Assessment:

•Only an accredited assessor can produce report•Standardised, impartial assessment including:

• Fabric Assessment• Other advice, including behavioural


Green Deal Process

Finance:

•New Finance mechanism – attached to the energy meter and paid back over time through savings on energy bills•Obligation passes to whoever pays the bill at the property, so transfers automatically to any new occupier


Green Deal Process

Installation:

•Accredited installers carry out work to a clear standard•Sign off work once complete and inform Green Deal provider that repayments can begin


Green Deal Process

Repayments and follow up:

•Payments collected through energy bills with the Green Deal charge shown as a separate line on the bill•Continuing support from the Green Deal provider throughout Green Deal•Customer is free to switch energy supplier – no change to current procedures


The Golden Rule is the principle which limits the amount of Green Deal finance that a provider can attach to the likely energy bill savings by the measures installed

Protects consumers of higher energy bills and investors from a higher risk of default on the bill.

The Golden Rule


The Assessment

The advisor will produce an Energy Performance Certificate (EPC) alongside an appropriate package of measures

In addition to

An assessment of how the occupants use their energy in their home through the Occupant Assessment

The Golden Rule


• Assessment methodology by an improved RdSAP• Changes include:

– Regional weather, orientation and exposure– Partial coverage (room by room approach)– Additional energy efficiency measures– Indication of likely to meet Golden Rule– Revised EPC format

Agreed Changes to Domestic Assessment


• Based on existing energy calculation tool SBEM.• Currently in development and being piloted by BRE• Additional functionalities to be expected:

– Allow the assessor to tailor the model to the building occupiers actual operating regime

– Enable the assessor to more easily explore and document the savings in energy use resulting from the installation of one or more energy efficiency measures, in one or more packages or measures.

– Accept information on fuel costs, so as to calculate the approximate value of these energy savings.

Non-Domestic Assessment


• Fundamental concept is that the Green Deal payments will be collected as part of the energy bills

• This facilitates automatic transfer of charge between collectors if supplier is changed or properties change hands

• Supplier with less than 250,000 customers are not obliged to collect• Electricity supplier will be collecting the Green Deal charge as an

agent or trustee of the Green Deal provider• Payments passed to the green Deal provider within 72hrs• Ability to switch is not restricted assuming new supplier is

participating in the payment collection mechanism

Energy Companies


• Only authorised Green Deal installers can undertake the works• Will be able to use the ‘Green Deal Mark’• Are certified by an accreditation body against the relevant Green

Deal standards set out in the Code of Practice• Are a member of the certification body which certifies them• Agree to comply with the Code of Practice• Possible top up training required against current industry

recognised installation requirements• Consumer could choose to go directly to Green Deal provider or an

independent installer to carry out the work• Complaints handled by Green Deal provider who may take the

matter to the certification body• There will be an over sight body.

Installers


• Responsible for the provision of Finance and Arranging energy efficiency works

• Offers a Green Deal Plan based on the recommendation from an accredited assessor

• Must include consumer protections such as warranties

• Arranges installations from an authorised installer

• Have a complaints handling procedure

• Provide information to new bill payer (must keep records)

Green Deal Providers


• Cavity Wall insulation

• Cylinder Thermostats

• Draught proofing

• Energy efficient glazing

• External wall insulation

• High thermal performance external doors

• Hot water cylinder insulation

Approved Measures - Passive

• Internal wall insulation

• Lighting systems, fittings and controls

• Loft or rafter insulation and loft hatch insulation

• Roof insulation

• Room in roof insulation

• Under-floor insulation


• Air source heat pumps

• Biomass Boilers

• Biomass room Heaters (with radiators)

• Ground Source heat pumps

Approved Measures - LZC

• Micro combined heat and power

• Micro wind generation

• Photovoltaic’s

• Solar water heating


• Fan-assisted replacement storage heaters

• Flue gas heat recovery devices

• Heating controls (for wet central heating system and warm air system)

• High efficiency gas-fired condensing boilers

• High efficiency replacement warm-air units

Approved Measures - Other

• Mechanical ventilation with heat recovery

• Oil-fired condensing boilers

• Under-floor heating

• Waste water heat recovery devices attached to showers


Property practitioners•Disclosure required at sale or rent through the EPC – Estate agents/solicitors•Acknowledgement at transfer of property at sale, rent or license.

Social landlords•Who takes out the Green Deal, Landlord or Tenant – Could be either but tenant would require Landlord approval•Landlord is liable in voids periods•Bill payer is liable for default

Other Details


• Domestic Green Deal to be launched in October 2012, Non-Domestic TBC!

• RdSAP/SBEM vs DSM • Eligibility of efficiency measures• Favours Non-Domestic over Domestic• What measures will be in place to curb GD Assessors’ inclination to

inflate predicted savings • What protection will be provided to consumers• Will building owners willingly burden their home with a GD

commitment binding on future purchasers?• Will enough GD assessors be trained up by October 2012 to make

non-domestic Green Deal viable at that date?

Points of Note


• Government have decided that EPC’s should be made Publically available.

• To come into force from April 2012.

• Individual users will be able to access PDF EPC’s online directly from the EPC register – at no cost.

• Authorised Bulk users include, Public sector, FIT’s Licensees, Green Deal Providers, etc

EPC’s


• Current EPC been in use since 2007.

• Some positive features.

• Research shown majority of home buyers and prospective tenants either do not read their EPC in detail, or at all.

• Reasons include:– Document too lengthy– Language too technical– Confusion over ratings– Large amounts of text

Current EPC


• EPC has undergone a major redesign to ensure it gives consumers the information they need, including:

• A much more professional design with better use of graphics and white space.

• Getting rid of jargon and making it more consumer-friendly with plain English used throughout

• A very clear emphasis on the financial costs and benefits of various measures

• Clear signposting to the Green Deal and information on which measures qualify for Green Deal finance

New EPC


New EPC


• L2A: Notional Building: either 11% aggregate saving (likely) or 20% aggregate saving (Government preferred option)

– Either way the challenge is real.

• Session 2 will cover the proposed changes in more detail.

Part L 2013


UK Building Regulation Capability

England & Wales: Domestic Part L1ANon-domestic Part L2ANon-domestic Part L2B

Scotland: Domestic Section 6 Non-domestic Section 6

Northern Ireland: Domestic Part F1 Non-domestic Part F1

Republic of Ireland:Non-domestic Part L

iSAP VE-SBEM / ApacheSim<DEC-Assessor>

iSAP VE-SBEM / ApacheSim

iSAP VE-SBEM / ApacheSim

<BER-Assessor>

• All areas of the UK catered for and beyond.– Non-domestic & dwellings from the same tool


• www.iesve.com

• forums.iesve.com

• twitter.com/IESVE

• blog.iesve.com

• youtube.com/IESVE

• facebook.com/IESVE

• slideshare.net/IESVE

Hear the latest, as we do!


The Energy Performance of Buildings (Certificates and Inspections) (England and Wales) (Amendment) Regulations 2011

http://www.legislation.gov.uk/uksi/2011/2452/introduction/made

Information Update for Domestic Energy Assessors

http://www.communities.gov.uk/publications/planningandbuilding/updatedomesticenergy

2012 consultation on changes to the Building Regulations in England: Section two - Part L (Conservation of fuel and power)

http://www.communities.gov.uk/documents/planningandbuilding/pdf/2077834.pdf

The Green Deal

http://www.decc.gov.uk/en/content/cms/tackling/green_deal/green_deal.aspx

Approved Document L2A 2010

http://www.planningportal.gov.uk/uploads/br/BR_PDF_ADL2A_2010.pdf

References


Q&A


Break

ies faculty – part l, epc’s & the ve (part 1)

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