I told you about the first retrofit we did on our house in this post here that I wrote last October.
I told you that we had an energy audit done by the House Whisperers and then implemented a lot of their recommendations. I did not, however, share with you the audit itself. My bad.
I’d like to say this was a calculated move–that I was keeping you in suspense–but the truth is I couldn’t find it. It may have had something to do with our second child being born in 2008, but I couldn’t find that oh-so-helpful paper that some of you might be itching to see.
When I was putting together that post last October I contacted Garry at The House Whisperers and he was happy to send it to me. Here it is:
It’s 11 pages long and gives a good idea of how to reduce our energy use and greenhouse gas emissions. Much of the advice was repeated by Monte Paulsen of Red Door Energy Design when he gave us notes on the computer energy model he made for us.
Garry also shared his views on the clawing back of energy efficiency incentives by both the federal and provincial governments. “At our peak we employed 15 energy advisors and 5 office staff. Today we have no employees. All of our employees moved on to other sectors.” I shared more of his letter in a post I naturally called, “Green Jobs”.
Here are a few things that struck me reading through the 2008 audit (see if you agree):
1. Right off the bat it says that by following all the recommendations we could reduce our energy consumption by 70%. With an oil furnace, what a huge improvement! What if every home that was going to be knocked down in Maple Ridge did that instead? We could lead the world.
2. The tragic mention so often of what measures are eligible for one ecoACTION grant or other, all of which, of course, were “ended”.
3. The mention of NRCan’s publication Keeping the Heat In. This book contains a wealth of objective, reliable information and advice to help improve home energy efficiency, lower heating bills, etc. When the ecoACTION funding was cancelled they were thrown away. I obtained a whole box of them from a member of the Maple Ridge Community Home Energy Retrofit Project team who had taken it because they were told the books were going into the dumpster. The publication is still available online, but I can’t understand why they would throw away the books. Perhaps it is true what Garry wrote, and our current government does not want a public that is educated about energy.
4. Right at the top is the Natural Resources Canada’s ecoACTION logo. The whole thing gives the impression that the federal government takes climate change seriously. There is no sign that the program will end suddenly when the new government decides its only purpose was economic stimulus (and it doesn’t believe in economic stimulus).
The results of your pre-retrofit energy evaluation show that your house rates 40 points on the EnerGuide scale. If you implement all of the recommendations in this report, you could reduce your energy consumption by up to 70% and increase your home’s energy efficiency rating to 79 points. The average energy efficiency rating for a house of this age in British Columbia is 47, whereas the highest rating achieved by the most energy-efficient houses in this category is 80.
The sooner you start your renovations, the sooner you will benefit from the energy savings. And let’s not forget how reduced energy consumption helps protect the environment.
Did you know that when you reduce the amount of energy used in your home, you also reduce the production of greenhouse gases (GHG) such as carbon dioxide? By improving your home’s energy efficiency rating to 79 points, you will reduce its GHG emissions by 11.7 tonnes per year!
The ecoENERGY Retrofit – Homes program stopped accepting bookings for pre-retrofit evaluations as of March 31, 2010. If there is a complimentary grant program offered by a province, territory, municipality, utility or other organization, your file will be transferred to them in accordance with your consent.
Note: If you notice any discrepancies with the above description of your home, contact your service organization immediately.
Service Organization: The House WhisperersTelephone: 1.800.706.3013
Date of evaluation: April 14, 2008 Date of report: Oct. 3, 2014 (re-issued)
Certified Energy Advisor: Garry Lowney
1. YOUR HOME ENERGY ACTION CHECKLIST
This is your checklist of recommended retrofits to improve the energy efficiency of your home. Included is information on the potential for energy savings and EnerGuide rating improvement. For more information on implementing the recommended retrofits, read carefully the ‘Recommended Energy-Saving Measures’ section of this report. Any reference in this report regarding the eligibility for, or availability of, grants under the ecoENERGY Retrofit – Homes program should be disregarded.
Before undertaking upgrades or renovations, find out about the appropriate products and installation techniques, and ensure that all renovations meet local building codes and by-laws. NRCan does not endorse the services of any contractor, nor any specific product, and accepts no liability in the selection of materials, products, contractors or performance of workmanship.
Note: Some provinces, territories, municipalities and utilities offer complimentary grants and other incentives for reducing energy use. For information on other energy-saving programs, visit ecoaction.gc.ca and follow the links to ecoENERGY Retrofit’s “Grants and Rebates” Web page for consumers or call 1 800 O-Canada (1-800-622-6232).
When replacing ANY of the equipment listed in this report, the new equipment should have an efficiency rating higher than that of the original equipment.
2. THE ENERGUIDE RATING SYSTEM
The EnerGuide rating system is a standardized method of evaluation that lets homeowners compare their house’s energy efficiency rating to similar sized houses in similar regions. The EnerGuide rating considers the house’s estimated annual energy consumption based on an in-depth evaluation of the house’s characteristics such as location, size, equipment and systems, insulation levels, air tightness, etc. In addition, standardized conditions are used when calculating the rating in order to compare the efficiency of one house to another. These conditions include: a complete air change approximately every three hours; four occupants; a fixed thermostat setting of 21°C on main floors and 19°C in the basement; average hot water consumption of 225 litres per day; average national electricity consumption of 24 kWh per day; and regional weather data that is averaged over the last 30 years.
Figures 1 through 3 show the results of your energy evaluation based on the standardized conditions. The results may not entirely reflect your household since your actual energy consumption and future savings are influenced by the number of occupants, their day-to-day habits and lifestyles.
4. SPACE HEATING ANALYSIS
Figure 2 shows the estimated percentage of energy used for the space heating of your home.
– The right side of the top bar shows the percentage of energy you could save if you were to implement all of the upgrades recommended in this report, excluding changes to the space heating equipment. You could save up to 42 percent by performing all of the recommended non-space heating system upgrades.
– The right side of the bottom bar shows the percentage of energy you could save if you were to implement all of the upgrades recommended in this report, including any space heating system upgrades. You could save up to 87 percent by performing all of the recommended upgrades.
Your Home’s Estimated Design Heating and Cooling Loads
If you were to implement ALL of the building envelope retrofits recommended in the section of this report entitled ‘Your Home Energy Action Checklist’, it is estimated that your home’s design heat loss would be 45839 Btu/hour (13434 Watts) and its design cooling load would be 22771 Btu/hour (1.9 tons). If you are considering replacing your space heating and/or cooling system, it is recommended that you provide this information to your heating/cooling contractor to help ensure a properly-sized system. However, this is only an estimate based on the data that was collected on your home at the time of the pre-retrofit evaluation. The design heat loss and cooling load can vary depending on different factors, such as the retrofits that you implement and other changes you may make to your home. Prior to having a new heating/cooling system installed, it is recommended that your heating/cooling contractor perform a heat loss/heat gain calculation on your home to determine the capacity and distribution flows for the new equipment. The contractor should hold current certification for Heat Loss/Heat Gain Calculations from the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI). For a list of certified contractors, visit www.hrai.ca and click on “Homeowners and Building Owners” and “SkillTech Academy Canadian Certification Listing”, or call 1-800-267-2231.
Important Information Concerning Vermiculite Insulation
Older vermiculite insulation installed in homes may contain amphibole asbestos, which can cause health risks if disturbed and inhaled. If the insulation is contained in the walls or attic spaces and is not disturbed or exposed to the home or interior environment, it poses very little risk. Vermiculite insulation was not detected during the energy evaluation of your home. However, if you find vermiculite insulation during renovations, avoid disturbing it in any way. If you suspect it might be in your home and you plan to undertake renovations (including insulation or air sealing work) that may cause the vermiculite insulation to be disturbed, contact professionals who are qualified to handle asbestos before you proceed with the renovations. For a listing of qualified professionals, look in the Yellow PagesTM under ‘Asbestos Abatement & Removal’. For information on vermiculite insulation that contains amphibole asbestos, refer to the Health Canada fact sheet It’s Your Health – Vermiculite Insulation Containing Amphibole Asbestos. Visit http://www.hc-sc.gc.ca/hl-vs/iyh- vsv/prod/insulation-isolant-eng.php or call Health Canada at 1-800-443-0395 to order a copy.
5. RECOMMENDED ENERGY-SAVING MEASURES
Main Walls – General
I recommend insulating the exterior walls to a level of R12 or better. Retrofitting walls can help save energy, since walls can account for 10 to 30 percent of heat loss in a house. Depending on the house, and its characteristics, exterior walls can be insulated by filling the wall space (the wall cavity) with blown-in insulation, by adding insulation from the interior or exterior, or a combination of any of these methods.
Before you begin, first check the walls from the interior and exterior for evidence of moisture damage: stains, mould, rotten wood, flaking brick and peeling paint. Also, make sure that damage to the walls is not being caused by problems with the roof and that all flashings are secure. All these problems must be fixed before proceeding. Seal gaps and cracks in the exterior wall-finish, and around window and door frames to prevent water from penetrating into the walls. Do not seal, however, any drainage holes at the bottom of brick-veneer walls or window frames, as these holes are necessary to minimize the impact of water penetration on the wall assembly. Consider additional upgrades related to the walls before retrofitting them, such as electrical wiring, and the installation of air- and vapour-barriers.
Wall insulation upgrades are eligible for an ecoENERGY Retrofit – Homes grant. The grant amount differs, based on the insulation values installed, and the wall surface-area covered. A minimum of 20% of the total exterior wall surface must be insulated to qualify for a grant. Taking photos of the walls while the insulation is being installed then showing them to your energy advisor, during the post-retrofit evaluation, is recommended to ensure that you will get full credit for your newly-installed insulation.
For more information on insulating walls, as well as insulation materials, their properties and installation methods, consult NRCan’s Keeping the Heat In and Canada Mortgage and Housing Corporation’s About Your House and Renovating for Energy Savings fact sheets.
I recommend that you insulate your main walls. [we did, with half-pound spray foam insulation, in 2008]
Foundations – General
Consider insulating the uninsulated concrete foundation walls with R24 and any empty joist headers with R20. Foundation heat loss can account for 20 to 35 percent of a home’s heat loss. A well-insulated foundation can improve home comfort, air quality, structural integrity, and energy efficiency.
Before insulating, first check for moisture in your foundation walls. Tell-tale signs are: staining or mould growth; blistering, peeling paint; efflorescence, a whitish deposit on the surface; spalling or surface deterioration; condensation on walls and metal objects; and a musty smell.
Repair water leaks through the floor and walls, caused by cracks, holes and construction joints. You should also control humidity levels and there should be appropriate damp-proofing or waterproofing on the foundation walls to prevent moisture from wicking through the foundation wall.
To prevent moisture problems, slope the ground away from the house exterior and direct eavestrough downspouts away from the foundation. Maintain and seal sumps and sump pumps, and install sewer backup equipment, if required.
The type and condition of your foundation will determine if you can insulate from the outside or from the inside. Exterior insulation is the preferred but more costly method. Foundations of rubble, brick, stone and concrete block are best insulated from the exterior. However, you may wish to have an engineer verify your foundation’s structural integrity before undertaking any work.
Poured-concrete foundations can be insulated from either the outside or inside, providing there are no serious water or structural problems. Preserved-wood foundations, made with sheathing and studs, are generally insulated by filling in the stud space. Slab-on-grade foundations are typically insulated on the exterior edge. Occasionally, they are insulated on top of the slab and under the floor finish. Basement- and crawl-space insulation upgrades are eligible for ecoENERGY Retrofit – Homes grants. The grant amounts vary depending on the insulation values added and the surface area insulated. Go to Your Home Energy Action Checklist in this report to see the recommended insulation value for your foundation and the eligible grant amount. Taking photos of the foundation during installation and showing them to the energy advisor during the post-retrofit evaluation is recommended, to ensure that you receive full credit for your installed insulation. For more information about insulating foundations, as well as insulation materials, their properties and their installation methods, consult NRCan’s publication entitled Keeping the Heat In and Canada Mortgage and Housing Corporation’s About Your House and Renovating for Energy Savings fact sheets.
Reducing air leakage is usually the most cost-effective measure a homeowner can undertake; the leakier the home, the greater the savings! It is not unusual for air leakage to account for 35% of the heat loss in a home. In addition to reducing heat loss, air sealing improves comfort, protects the building structure and other materials from moisture damage, and reduces the amount of dust and noise that enters from the outdoors.
A blower door test was performed on your home to measure the amount of air leakage, and to identify the main air leakage locations. The blower door test results are shown on the first page of this report and are explained below.
The Air Leakage Rate at 50 Pascals (ACH) is the number of complete air changes per hour that occurs in your house when a pressure difference between the inside and outside of the home is set at 50 Pascals (Pa). A 50-Pa pressure difference simulates wind blowing at 56 kilometers per hour on your home. The higher the ACH, the leakier the house.
The Equivalent Leakage Area (ELA) represents the total air leakage area. It’s like taking all of the air leakage areas (e.g., cracks, holes, etc.) in the home and putting them together to create one large hole in the building envelope. The larger the ELA, the leakier the house. An energy-efficient house might have an ELA as low as 258 cm2 (40 square inches) while a leaky house may have an ELA of more than 3226 cm2 (500 square inches) Leakage in your home at the time of my evaluation was 376 square inches in total, the majority coming from the unfinished basement , seal joist headers and use vapor barriers when insulating .
Air Sealing Options
Air sealing can be a do-it-yourself option. Another option is to hire a qualified, professional, air sealer who can locate and seal leaks in your home and likely do a more thorough job. This may be an important consideration if you want to air seal your house to meet a specific air leakage goal, and be eligible for a grant. Professional whole-house air sealing costs vary, depending on the size and complexity of the work.
Air Sealing Materials
Weatherstripping reduces air leakage by sealing gaps around moveable parts of windows and doors. Correctly installed, good quality weatherstripping is a cost-effective way to reduce air leakage. Check weatherstripping annually and replace worn materials before the cold weather sets in.
Caulking is used on the interior to seal small cracks and penetrations on the inside surface of your walls, ceilings and floors. Caulking is also used on the exterior to keep out rain, snow, wind as well as insects and rodents. Urethane foam is very good for filling larger joints and cavities.
For information on air sealing your home, consult NRCan’s publications entitled Air-Leakage Control, Improving Window Energy Efficiency and Keeping the Heat In, and Canada Mortgage and Housing Corporation’s About Your House, and Renovating for Energy Savings fact sheets.
I recommend air sealing your home to achieve the air-leakage rate indicated at the beginning of this report, in the section Your Home Energy Action Checklist. You must meet or exceed the goal indicated to be eligible for an ecoENERGY Retrofit grant for air sealing. The results of the air sealing work will be measured at the time of your post-retrofit evaluation.
Insulating Cathedral Ceilings
Insulating a cathedral ceiling usually requires the services of a contractor. The main difficulty with cathedral ceilings is the limited space for insulation and ventilation.
When insulating a cathedral ceiling, you must minimize moisture penetration from the house into the roof space, which can lead to moisture problems, reduce the effectiveness of the insulation and damage interior finishes and the roof structure. Therefore, it is critical to seal all air leaks into the ceiling, to keep the humidity level in the house at a reasonable level and to eliminate existing moisture problems.
Thermal bridging occurs when joists or rafters, which have a relatively low insulating value, conduct heat directly from the ceiling to the exterior of the house. Therefore, it is preferable to eliminate or reduce thermal bridging through the ceiling joists or rafters when you insulate cathedral ceilings. In addition to the heat loss, thermal bridging can cause staining or condensation on the ceiling finish along the joists.
Cathedral ceilings can be insulated using one of the following methods:
– insulating from the exterior
– insulating from the interior by removing the existing ceiling
– insulating from the interior by insulating over the existing ceiling
– insulating the roof space
Insulating from the Exterior
Insulating from the exterior is the preferred method for cathedral ceilings but is one of the most labour intensive. This method usually requires that you remove the roof surface to expose the roof space. Therefore, it is more cost effective to perform this work if your roof needs to be repaired or replaced.
Insulating from the Interior by Removing the Existing Ceiling
Insulating from the interior by removing the ceiling is also labour intensive because it involves: removing the existing ceiling finish, possibly removing the existing insulation and vapour barrier; installing insulation and an air and vapour barrier; and installing a new ceiling throughout the house. As well, it is difficult to correctly insulate and seal the top of the interior partitions with this method.
Insulating from the Interior by Insulating Over the Existing Ceiling
This method is somewhat less labour intensive because the existing ceiling can be left in place and insulation and a new air and vapour barrier is installed over the ceiling, followed by a new ceiling finish. As with the method explained above, it is difficult to correctly insulate and seal the top of the interior partitions with this method.
Insulating the Roof Space
To insulate the roof space, loose-fill insulation is blown in to fill the cavity between the ceiling and the roof. This method is performed by an insulation contractor.
This method of insulating can eliminate ventilation and is not recommended unless extra care is taken to reduce air leakage into the roof space and prevent potential moisture damage. Unfortunately, air leakage locations in a cathedral ceiling, such as penetrations for electrical wiring, plumbing stacks and the tops of partition walls, are not easily accessible for sealing. In addition, this insulation method may not reduce thermal bridging if the joists are not covered with insulation.
For more information, refer to NRCan’s Keeping the Heat In and Canada Mortgage and Housing Corporation’s About Your House and Renovating for Energy Savings fact sheets.
Grant Eligibility: The insulation of cathedral ceilings is eligible for an ecoENERGY Retrofit – Homes grant. You must increase the insulation value of the cathedral ceiling by a minimum of RSI 1.8 (R-10).
Grant Eligibility: Attic insulation upgrades are eligible for an ecoENERGY Retrofit – Homes grant. The grant amount differs according to the existing insulation value and the total insulation value achieved. Information on the eligibility requirements when insulating attics can be found in the brochure entitled Retrofit Your Home and Qualify for a Grant!
Increase the insulation value of your attic to the insulation value noted in the section of this report entitled ‘Your Home Energy Action Checklist’.
Air-Source Heat Pumps
Consider upgrading to a high efficient oil furnace, although there is no grant to change to an electric furnace that is a option also. I strongly recommend an air source heat pump in conjunction with the upgraded heating system that you choose. Air-source heat pumps, which include air-to-air and air-to-water heat pumps, extract heat in the air from outside and transfer it to a distribution system in the house during the heating season.
Different terminology is used for the efficiency ratings of heat pumps. For example, air-source heat pumps have seasonal heating and cooling ratings. The heating rating is the Heating Seasonal Performance Factor (HSPF), while the cooling rating is the Seasonal Energy Efficiency Ratio (SEER). However, in the manufacturers’ catalogues you may still see Coefficient of Performance (COP) or Energy Efficiency Rating (EER) ratings. COP is used to rate cooling or heating efficiencies and EER only rates the cooling efficiency. The higher the rating, the more energy efficient is the heat pump. ENERGY STAR® qualified heat pumps are among the most energy efficient in the marketplace.
For more information on air-source heat pumps, refer to the NRCan publication entitled, Heating and Cooling with a Heat Pump.
Grant Eligibility: ENERGY STAR qualified air-to-air and air-to-water heat pumps are eligible for an ecoENERGY Retrofit – Homes grant for the heating system. These air-source heat pumps are also eligible for an additional ecoENERGY grant for the cooling system, providing the heat pump replaces an existing central air conditioner. For more information, refer to the NRCan publication entitled, Retrofit Your Home and Qualify for a Grant!
I recommend that you install an ENERGY STAR® qualified air-source heat pump to heat and cool your home.
Heating System Upgrade
Consider replacing your existing furnace (see Energy Action Checklist above) with an Energy Star rated system that includes a DC variable speed energy efficient motor. Because of their improved efficiency a high efficient furnace on average will use, on average 35% less fuel than an old furnace. High efficient equipment offering sealed combustion is more efficient and less likely to become a health risk.
Energy Star air source heat pumps can maximize energy savings, improve comfort and both heat and cool your home. In some cases they can reduce heating costs by up to 60%. Air source heat pumps use less energy than furnaces, boilers or electric baseboards.
Refer to one of NRCan’s 4 booklets Heating with Gas/Oil/Electricity/Heat Pumps on more detailed information on how to select a more energy efficient heating system. The publications are availabe online at http://0ee.nrcan.gc.ca/publications.
To meet the requirements for eligibility, new toilet fixtures must meet the certain performance criteria. They must have a water capacity of six litres or less and a flush performance of 350 grams or more. They must also meet the Los Angeles Supplementary Purchase Specification (SPS) for water savings sustainability. Information on the makes and models is available at http://www.veritec.ca/index.php.
6. ENERGY-SAVING TIPS
Although these actions may not be eligible for an incentive, they will help you save energy and money:
– Install and use a programmable electronic thermostat (set the heating temperature to 20°C while you are at home and 17°C at night and when you are away). For each degree of setback, you can save up to 2 percent on your heating bills.
– When replacing lighting, appliances, electronics and office equipment, look for ENERGY STAR® qualified products. ENERGY STAR® qualified products use less than half as much energy in standby mode (i.e. when they are turned “off”). For more information, go to http://energystar.gc.ca. You can also look for the EnerGuide label to help you select the most energy-efficient model.
– Replace your light bulbs with energy-efficient ones, such as compact fluorescents. They last longer and reduce electricity consumption.
– Insulate the first two metres of the hot and cold water pipes with insulating foam sleeves or pipe wrap insulation. By doing so you will save on your water heating costs and will reduce your water consumption. Besides saving energy, water will arrive at the faucets warmer or colder. Insulating cold water pipes will also avoid condensation from forming on the pipes. This prevents dripping on the ceiling finish or the basement floor. For a fuel-fired water heater, maintain a 15-centimetre (6-inch) clearance between the water piping insulation and the vent pipe.
– Install an ENERGY STAR® qualified kitchen or bathroom exhaust fan.
– Install a timer on your bathroom exhaust fan(s).
– Install low-flow showerheads (rated at less than 9.8 litres per minute [L/min]) and faucet aerators.
– Fix leaky faucets and outside hose bibs.
– Plug your home office equipment into a power bar that can be easily turned off when equipment is not in use. Refer to the fact sheet Standby Power – When “Off” Means “On” for information on standby losses.
7. INFORMATION RESOURCES
Home Energy Efficiency
Natural Resources Canada (NRCan) publishes a variety of publications that can help you improve the energy efficiency of your home. These publications are available online at oee.nrcan.gc.ca/publications or by calling the order desk at 1-800-387-2000.
Canada Mortgage and Housing Corporation (CMHC) publishes a large number of renovation planning fact sheets that are available at no cost. There are also some excellent in-depth publications for sale. Visit cmhc- schl.gc.ca or call 1-800-668-2642 to order your material of interest.
Hiring a Contractor
Before you have any work done, request quotations in writing from professional contractors and obtain a written contract. CMHC has a very useful fact sheet on this subject, Hiring a Contractor, which includes a draft contract. Visit cmhc-schl.gc.ca or call 1-800-668-2642 to order.
If you suspect mold growth in your home, it is recommended that the mold damaged area(s) be cleaned thoroughly or removed and properly disposed of. To control and reduce the potential for mold growth, maintain indoor humidity at appropriate levels, and remedy water infiltration and leakage issues. Refer to the CMHC fact sheet About Your House: Fighting Mold – The Homeowner’s Guide for information on proper mold identification and cleaning procedures. Visit cmhc-schl.gc.ca or call 1-800-668-2642 to order.
Radon is a radioactive gas that is colourless, odourless and tasteless. Radon is formed by the breakdown of uranium, a natural radioactive material found in soil, rock and groundwater. When radon is released from the ground into the outdoor air, it gets diluted to low concentrations and is not a concern. However, in enclosed spaces, like houses, it can sometimes accumulate to high levels, which can be a risk to the health of you and your family. For more information, refer to the CMHC publication Radon – A Guide for Canadian Homeowners or visit the Health Canada web site at http://www.hc-sc.gc.ca/ewh-semt/radiation/radon/index- eng.php.
A relative humidity (RH) level of between 30 and 55 percent is recommended in the home. If you have a humidifier or dehumidifier, ensure that it is regularly cleaned and maintained, and that the humidistat is set at an appropriate humidity level. You can use a hygrometer to measure relative humidity and the CMHC fact sheet Measuring Humidity in Your Home gives good advice. In addition, dehumidifiers can help reduce moisture levels especially in basements.
GET STARTED TODAY!
Now that you have the tools to improve your home’s energy efficiency, you can look forward to enjoying the added comfort of your ecoENERGY improved home. Not only will you benefit from increased comfort, you will also save on your energy bills year after year. And let’s not forget your reduction of greenhouse gases!
What is stopping us? This document outlined in 2008 how we could save 70% (in one place it says 87%) on our energy costs. If we stay in our house long enough, the upgrades will pay for themselves. If we factor in Canadians’ collective costs due to climate change (healthcare, insurance, forest fires, droughts, etc.) it’s an even better deal for homeowners and governments alike.
Since 2008, there has been no huge leap in home energy technology. (In our 2013 energy model, many of the same conclusions were reached although the house had jumped from EnerGuide 40 to 63.) The myth is that we’re waiting for technology to become improve. We’re not. We’re waiting for the tipping point when large numbers of home owners start to retrofit their homes with or without government encouragement. That will bring the costs down for everyone.
If our governments won’t, it is up to us to leap forward, dragging them along behind us.
The first step is voting on October 19th.