cri presentation 23.11.11
TRANSCRIPT
Bruce PittingaleExecutive Director
The Carbon Reduction Initiative (CRI) East CIC
07545 769 645
The energy efficiency driver• My colleagues today have outlined
– The effects of fuel poverty– The negative medical effects of fuel poverty– Energy conservation– Community role in developing a vibrant
community
• I wish to discuss with you what actions we can take.
• The difference between energy conservation and energy efficiency.
Energy Conservation
Energy Efficiency
• What physical barriers we can use to save existing heat– Loft Insulation– Cavity wall insulation– Draught proofing– Solid wall insulation– Double/ triple glazed windows– Removing dampness from the home– Using low energy bulbs and lights
Loft Insulation• Survey shows 80% of
homes not insulated to today’s standards
• 270mm (10”) deep• Ensure eaves clear• Wires lifted• Tanks and pipes
cocooned
Cavity Wall Insulation• 35% of heat escapes through this area• Homes built after 1935 have cavity
walls• Not all homes are insulated when built
even today!• Making homes into a thermos flask• 25 year guarantee from the Cavity
Guarantee Association (CGA) • Myths around cavity wall insulation
The cavity is inspected for
suitability
A survey is undertaken and your home assessed
Arrangements are made for the installation team to install your cavity wall insulation.
Holes are drilled in a pre set
pattern in all external walls
A test box is filled to ensure the correct density of material is used
The material is delivered by the machine in the
back of the van
To the wall by hose….
and the cavity completely filled
Finally the holes are filled to match the existing fascia
Draught proofing and Double glazing• Around 10% of heat is lost through the
windows of a single glazed property• Around 15% is lost through gaps
around doors and windows• Another area is around the loft hatch
which should also be draught proofed• Enough ventilation should be left to
serve any appliance that draws air from the room
Solid wall insulation• A more expensive remedy for old housing,
built before 1935• Can be insulated from inside or outside• Will change the façade of the building
when insulated from outside• Services and door/ window reveals need
to be extended• All pipes and rainwater need to be
replaced• Electricity and telephone wires need to
removed and then refixed
Damp air……• Is heavier to heat• Can be the result of
condensation, rising dampness in walls or water penetration
• Replace bathroom and kitchen extractor fans and replace with heat recovery units
• Ensure there is at least one change of air per hour (rule of thumb) through the property
The Carbon Emission Reduction Target
• Finishes in 2012• Grant aid provided by energy
companies• Supports
– Loft Insulation, top up as well as full insulation
– Cavity wall insulation– Some companies support solid
wall insulation
The Carbon Emission Reduction Target
• Qualifying criteria• Any home in the owner occupier
and private rented sector• Rented properties need written
approval of landlord• Approximately £149 for loft or
cavity wall insulation• Normal price for 3 bed semi house
£550 - £600
The Carbon Emission Reduction Target• 100% grants for the following people
– Any person over 70– Those with a disability of any age– Low income families– Low income single persons
• CRI East also checks for local grants from Councils as part of its service.
• If there is a grant which is more cost effective than the CRI offer we promote the better offer
The Community Role• Village halls and other community
buildings as an exemplar for the community
• Parish Council has an important role to develop energy efficient ethos
• Newsletters carrying energy news• Groups providing help for elderly in
clearing lofts, lowering ground levels, etc.
The Community Role• CRI East provides a service to community
groups that:-• Carries out a survey of community
buildings to provide an energy plan which is free
• a paid for service to train groups to clear lofts and get it ready for insulation
• a paid for service to help Parish Councils to develop an energy plan for their area and residents
• Signpost residents to specialists as necessary free of charge.
The Community RoleCRI East is happy to make a presentation to any community group free of charge to develop interest in energy use and how it can be reduced across Norfolk.Provide bespoke area monitoring forms to show how energy can be saved and monitor future energy use.
Renewable Energy Technology• The government is hoping to achieve
20% of our energy needs renewably by 2020
• Micro generation is another name for single home energy generation
• Can be carried out in a number of ways• Grants are not available for this type of
work generally, but• Other retrospective payments are
available
• For generating electricity renewably– Feed in Tariff
• Already in existence
• For generating hot water renewably– The Renewable Heat Initiative
• One off grant available now, turns to long term financial benefit next year, 2012
Renewable Energy Technology
Feed in Tariff (FiT)• PV Solar Panels• Wind Turbines• hydroelectricity • anaerobic
digesters • micro combined
heat and power (CHP), on trial only
PV panelsWind turbine
Etc.
Saving units provided to you by National Grid at present
Building using green energy
All units generated are paid an amount per unit no matter where it is used by your energy supplier
Any excess units are sold to the National Grid through your energy supplier
Payment received
Saving
Payment received
Taken from grid
Payment made
Case study 1
Weekly Generation
0.0
20.0
40.0
60.0
80.0
100.0
1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52
Week number
Ge
ne
rati
on
(k
Wh
's)
Series3 Series1
2.2 kWp systemInstallation date: 26th September 2010Average generation: 32.7 kWh per week
Case study 2
Weekly generation
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
Date
Am
ou
nt (
kW
h's
)
4kWp systemInstallation date: 4th July 2011Average generation: 70 kWh per week
New Feed in Tariff rates for PV
Comparison of old rates against new rates
Before 12/12/2011 After 12/12/2011
Refurbishment Yes Yes
Size (kWp) 2.2 2.2
System Price £9,500 £8,500
Yield from sun (kWh per kWp) 700 700
Cost of existing energy £0.15 £0.15
Exported to grid 50% 50%
Sale of generated energy to grid
£0.03 £0.03
Length of agreement 25 years 25 years
New Feed in Tariff rates for PV
Comparison of old rates against new rates
Before 12/12/2011 After 12/12/2011
Amount generated over lifetime (kWh’s)
36,276 36,276
CO2 saved (tonnes) 22 22
Return on Investment (%) 8.37% 5.87%
Overall Income (average) £15,420 £8,034
Annual Average income £774 £462
Payback period (capital cost)
11.1 years 13.9 years
Renewable Heat Initiative (RHI)• Thermal solar
hot water panels• Air source heat
pumps• Ground source
heat pumps• Biomass• Biodeisel• Biogas
The Green Deal• Due to be launched in the Autumn 2012,
not set in stone as yet!• Not a grant, but a loan linked to the home• Three step process
Is the measure eligible?
measure suitability
for the property
Does it meet the
Golden Rule in the
property?
Heating, ventilation and air conditioning Condensing boilers Heating controls Under-floor heating Heat recovery systems Mechanical ventilation (non-domestic) Flue gas recovery devices
Building fabric Cavity wall insulation Loft insulation Flat roof insulation Internal wall insulation External wall insulation Draught proofing Floor insulation
Heating system insulationEnergy efficient glazing and doors
Lighting Lighting fittings Lighting controls
Water heating Innovative hot water systems Water efficient taps and showers Microgeneration Ground and air source heat pumps Solar thermal Solar PV Biomass boilers Micro-CHP
Measure eligibility
• The Golden Rule states, ‘Expected financial savings must be equal to or greater than the cost of repayment over the term of the Green Deal Plan’
• Top up of loan could be asked for if the ‘Golden Rule’ is not met
• Measures giving best returns for energy saving installed first
• In some instances use of Energy Company Obligation (ECO) with Green Deal for ‘at risk’ customers
The Green Deal
• Paid via energy bills• Paid for through the energy
savings of the home until the loan has been re-paid
• The repayment period may be the lifetime of the measure or a specified “pay-back” period
The Green Deal
The Green Deal• Debt attached to property and
passed to any subsequent owner to pay through their energy bills
• Usual finance periods of 20 to 25 years for packages of measures
• Energy efficiency measures show most payback and will be carried out first
ECO Subsidy
Green Deal Finance
Next most cost effective measure
Measures fully meeting
Golden Rule
Measures providing Affordable Warmth to
the vulnerable
Green Deal working with ECO
Energy Company Obligation• Requires energy companies to support the
installation of energy efficiency improvements to homes
• Aimed at homes where Green Deal is not likely to work (lower income and vulnerable households)
• No government finance involved• Costs of the scheme will be met equally by all
households through their Energy Company tariff.
Energy Company Obligation• Those properties needing the next
most cost-effective measures that do not meet the Golden Rule will be targeted
• Supporting the – Installation of heating– Insulation measures
• Will also support solid wall insulation due to high cost of installation
Contact detailsBruce Pittingale, FRSA
Executive DirectorThe Carbon Reduction Initiative (CRI)
East [email protected]
05602 391 78407545 769 645