GreenHomeDiary.com
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Transcript of GreenHomeDiary.com
GreenHomeDiary.comGuide to Retrofitting to reduce CO2 & Energy Consumption
Rob Veck MSc Project Management (Dist) , PMP
Introduction & MotivationInteresting Statistics
Super InsulationDraft Proofing
Heat Recovery SystemWood Burning StoveSolar Photovoltaics
Solar Hot WaterWhat’s the Green Deal ?
Rob’s No-BrainersWorth Considering
This Evenings Talk
Some Interesting Data(David MacKay Sustainable energy with out the hot air)
Cumulative
U-values• Amount of heat that flows across 1m2 where there is a
difference of 1 deg C between one side and the other.
“Super Insulation” – PassivHaus• Roof 0.08 vs 0.16• Floor 0.10 vs 0.25• Walls 0.14 vs 0.35• Doors
What to Aim ForQuick Survey
What to Look for
Storing the Insulation
Yet More Insulation
Block and Beam floor + Insulation
Roof Insulation on Extension
Cutting the Insulation
Fixing the Insulation
Garage Conversion
Garage Insulation
External Wall Insulation Spec
External Wall Insulation Spec
Draft Proofing
New Front Door
Solid Wall
Heat Recovery System
Bits of Heat Recovery System
Wood Burning Stove - Installation
Wood Burning Stove - Today
Solar Photovoltaic - WHY
How it works◦ You pay capital for installation
Depends on space and orientation◦ Electricity Suppliers pay
41.3p for EVERY unit you generate EVEN if you use it.
3.4p for units you do not use.
You get◦ Savings on your electricity bill – about 50%
If you change your habits◦ You get a ¼ ly payment based on what you generate.
Return on investment◦ 10% (20% tax payer) / 12% (40% tax payer)◦ Represents 8% interest◦ Inflation proofed◦ Guaranteed for 25 Years◦ Payback period – 8 to 10 years
Solar Photovoltaic – Feed In Tariff
Solar Hot Water Panels
I’ll be moving house in the next few years◦ Not worth investing – I won’t see the payback.
I don’t have the cash
I am maxed out on mortgage / loans / credit cards
What is the Green Deal ?
These Reasons are Countered by the Green
Deal
Green Deal Assessor◦ Produces a “Whole House Plan” ◦ Estimates the savings◦ Checks for a Pay Back of 25 Years (Golden Rule)
Green Deal Installer(s)◦ Make changes to the house based on the Plan
Green Deal Provider (Green Investment Bank?)◦ Provide the finance◦ Collect the payments via your energy bills◦ These pay off the loan◦ THE LOAN IS ATTACHED TO THE PROPERTY NOT YOU.◦ Likely to be limited to £6500.
Full Scale Refurbishment would save £8.7 billion/year on household energy bills
What is the Green Deal ?
Insulate◦ Cavity Wall◦ Roof – at least 270mm Rockwall / Glass Fibre◦ Thermally Lined curtains◦ Behind Radiators◦ Under Floor – if you can
Eliminate Drafts◦ Doors / Letter Boxes / Keyholes◦ Chimneys◦ Floors◦ Windows !!
Radiator Valves Set your Boiler Timer Condensing Boiler
◦ New Water tank ? Get dual coil Lighting – LED if you can
◦ Halogen – boo! Please Please Please Check your appliances !
◦ Upright Fridge / Freezer◦ Tumbler Dryers – Boo!!◦ Freezers◦ Check your PVR / Satellite boxes / TV on standby◦ Get an OWL Meter
Rob’s No-Brainers
Redecorating your sitting room ?◦ Make it an ECO Room
Consider internal insulation Under floor Insulation Install a wood burning stove – if you can. Draft proof the floor and doors Put in a mini heat recovery system for fresh air. Put insulation into the ceiling !
◦ Make it a ZERO ENERGY ROOM ! Solar PV – if you have the money or
◦ Which Report suggests increasing your mortgage. Make sure you have a long term plan
◦ Check that nothing else will be required when altering the room.
Worth Considering
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0200400600800
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Electricity 2010 vs 2011
Axis Title
01000200030004000500060007000
6021
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GAS - 2010 vs 2011
Axis Title
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