Presentation by mirco-renewable experts htttp://www.ecolivinguk.com/ Learn more about how you can start benefiting from a renewable solution. Cut your heating and your carbon footprint with our solutions.

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Low Energy New Build:
Assessing the running costs of a low energy
new build 3 years on
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Frank McElroy, Regional Director, Ecoliving
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Project Background
Clients bought a small farm,
East Cambusmoon, within the
Loch Lomond & Trossachs National Park.
The existing Victorian farmhouse was in a poor state and was demolished.
Thomas Robinson Architects designed a four bedroom family home to
replace the existing one and half storey farmhouse. It had to be traditional
in external form and contemporary in internal feel and had to sit
comfortably in the landscape of the National Park and with the other
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neighbouring farm buildings.
The Challenge was minimizing energy
consumption while maximizing the views north to Ben Lomond.
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Construction Details
Timber-framed one-and-a-half storey
4 bedroom contemporary longhouse
Total Floor Area 246m²
Project Value £300,000
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Construction Details
Living area and kitchen located at
south end of the house with lots of
glazing to benefit from solar gain
Super insulated roof
White render finish with untreated
larch cladding
Slate roof with slate recycled from old demolished farmhouse
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Timber frame over-clad in wood fibre adding 50% to wall thickness and
contributing to airtightness
150mm concrete floor on 200mm insulating polystyrene
High levels of airtightness coupled with heat recovery ventilation
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Construction Details
U-Values
East
Cambusmoon
AECB Silver Farm Heat losses
Windows 1.50 1.60 35%
Doors 0.80 1.60 4%
Roof 0.15 0.15 25%
Walls 0.25 0.21 26%
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Floor 0.20 0.14 10%
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Energy Target
Clients run a wind power company,
Lomond Energy, and were keen to
build an eco home.
They joined the Association of Environmentally Conscious Builders and
decided to adopt the Association’s CarbonLite Silver Standard as the
specification for energy efficiency:
80% improvement on current buildings standards.
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“Our objective was to achieve this specification without breaking the bank or giving
local builders a problem.”
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Energy Target
AECB CarbonLite Standards
Primary Energy kWhp/m2 CO2 ECF Electricity equivalent targets
Space DHW Total kg/m2 Space DHW Electricity Total
Silver 40 18 120 22 3542 1594 5491 10627
Passivhaus 15 120 n/a 1328
Passivhaus UK 15 78 15 1328
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Gold 15 8 58 4 1328 708 3100 5136
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Ecoliving Engages with
Customer
START
Their Home Their Needs Their Site
HERE
Survey
Gather the
information
Review the options
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Critical Success Factors:
• Appropriate Design
• Quality Products
• Experienced Installer
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Micro-renewable Energy Solutions
Broad range of products to call on in designing solutions appropriate
to client, dwelling and site requirements
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Low Energy Specification
Heating and hot water
Heating is distributed via underfloor heating
with pipe work in the 150mm floor slab on
200mm polystyrene insulation.
No heating upstairs but towel rails in the
bathrooms
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Low Energy Specification
Heating and hot water
Delivered by 5 kW NIBE ground source heat pump
with integral hot water cylinder and 300m ground
collector in adjacent field. Collector pipe work 1m
below surface and 1m apart.
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Low Energy Specification
Supplementary Heating
Space heating in living room supplemented
with Contura wood-burning stove with
dedicated, sealed fresh air inlet into bottom
of stove.
No interference with the ventilation flow rates.
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Insulate Right – Ventilate Right
Insulation
Pavatex 'Pavatherm Plus' woodfibre board and Rockwool flexi 140mm batts
Wall insulation 200mm
Roof Insulation 350mm
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Insulate Right – Ventilate Right
Heat recovery
Heat recovery ventilation system with air to air heat exchanger. Damp,
stale air extracted from ‘wet rooms’ and used to
pre-warm fresh supply air from outside which
is filtered and then ducted to living areas
and bedrooms.
Imagine the
condensation
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here without a
ventilation system!
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3 years on
Clients moved into new home in May 2008.
Energy consumption and costs have been carefully monitored since then.
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http://eastcambusmoon.blogspot.com/
http://eastcambusmoon.blogspot.com
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http://eastcambusmoon.blogspot.com/
http://eastcambusmoon.blogspot.com
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Close to self
sufficiency from
the vegetable
garden
View north to
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Ben Lomond
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Annual Energy Actuals
AECB CarbonLite Standards
Primary Energy kWhp/m2 CO2 ECF Electricity equivalent targets
Space DHW Total kg/m2 Space DHW Electricity Total
Silver 40 18 120 22 3542 1594 5491 10627
Passivhaus 15 120 n/a 1328
Passivhaus UK 15 78 15 1328
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Gold 15 8 58 4 1328 708 3100 5136
ECF Actual 31 24 95 19 2732 2105 3599 8435
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Annual Energy Actuals
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Annual Energy Actuals
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Annual Energy Actuals
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Annual Running Costs
Heating £286
Hot water £226
Electricity £371
Annual Running Costs £883
Solar PV is currently being installed (10kWp) and is expected
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to cover 80% of the home’s energy requirements.
This expected to reduce the annual running cost to £177!
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5 Reasons to invest in renewable
energy for your property sooner
rather than later!
1 Become more energy self-sufficient and substantially reduce your
running costs
2 Improve your indoor climate with the latest renewable heating
and heat recovery technology
3 Harness nature’s energy and reduce your carbon footprint
4 Enhance the value of your property
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(existing or new build)
5 Receive an income for the electricity or heat you generate using
renewable energy
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We welcome
your enquiries.
STAND TV52
We look forward to helping
you reduce heating and
energy bills, reduce carbon
emissions and create a
sustainable, warm and
healthy indoor climate!
Thank you for your
attention!
© Ecoliving Ltd
Frank McElroy
frank.mcelroy@ecolivinguk.com
Tel: +44 (0)845 301 3121
www.ecolivinguk.com
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