IES Faculty – Part L, EPC’s & the VE (Part 1)

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

Overview
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

© Integrated Environmental Solutions Ltd.

Session 1

Niall Gibson


From EPBD to Present


The Origins of Part L
• 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 EPC’s
• 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


….and Today!
• Part L 2010…….


Where Are We Now


Part L2A 2010
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


The 2010 Notional Building
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.


Part L 2010
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


Accreditation
IES Certification

• Frequent online and face to face
training sessions offered to meet
customers needs – contact
accreditation@iesve.com for
more information.

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


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


The Green Deal
• 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 Overview
DECC

Oversight Body
BSI PAS Installer
UKAS
Standard / Advisor
Accrediting
Standard Green Deal Code of
Standards
Practice

(Accredited) Certification Bodies

Approved (Certified)
Advisors & Installers Issues
Quality
Green Deal Advisor Mark
Qualifications


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

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


Agreed Changes to Domestic Assessment

• 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


Non-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.


Energy Companies

• 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


Installers
• 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.


Green Deal Providers
• 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)


Approved Measures - Passive
• Cavity Wall insulation
• Cylinder Thermostats
• Draught proofing
• Energy efficient glazing
• External wall insulation
• High thermal performance external doors
• Hot water cylinder insulation

• 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


Approved Measures - LZC

• Air source heat pumps
• Biomass Boilers
• Biomass room Heaters (with radiators)
• Ground Source heat pumps

• Micro combined heat and power
• Micro wind generation
• Photovoltaic’s
• Solar water heating


Approved Measures - Other
• 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

• Mechanical ventilation with heat recovery
• Oil-fired condensing boilers
• Under-floor heating
• Waste water heat recovery devices
attached to showers


Other Details

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


Points of Note

• 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?


EPC’s
• 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


Current EPC
• 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

New 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


Part L 2013
• 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.


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

England & Wales: Domestic Part L1A  iSAP
Non-domestic Part L2A  VE-SBEM / ApacheSim
Non-domestic Part L2B <DEC-Assessor>

Scotland: Domestic Section 6  iSAP
Non-domestic Section 6  VE-SBEM / ApacheSim

Northern Ireland: Domestic Part F1  iSAP
Non-domestic Part F1  VE-SBEM / ApacheSim

Republic of Ireland:
Non-domestic Part L  <BER-Assessor>


Hear the latest, as we do!
• www.iesve.com
• forums.iesve.com
• twitter.com/IESVE
• blog.iesve.com
• youtube.com/IESVE
• facebook.com/IESVE
• slideshare.net/IESVE


References
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


Q&A


Break


IES Faculty – Part L, EPC’s & the VE (Part 1)

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