http://www.kansascity.com/news/local/article197241499.html

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Ryan Tollefsen REALTOR®
Unity Home Group at Keller Williams Realty Alaska Group
101 W. Benson Blvd. Suite 101
Anchorage, AK 99503

Check out my all new Great Alaskan Getaway Guide

http://www.constructiondive.com/news/more-buyers-want-green-homes-real-estate-agents-say/439944/

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Go to the web links and read. More next week.

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The post Home Energy Efficiency – From a Realtor’s perspective appeared first on Community Energy Systems.

http://www.greenbuildingadvisor.com/blogs/dept/qa-spotlight/do-europeans-make-better-windows-we-do

Do Europeans Make Better Windows Than We Do?

Differences in testing protocols yield different U-factors, but do European manufacturers have a ‘secret sauce’?

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The post Are European Windows Better – Yes they are but it is hard to tell appeared first on Community Energy Systems.

http://www.eia.gov/todayinenergy/detail.cfm?id=10271

March 7, 2013

Heating and cooling no longer majority of U.S. home energy use

For decades, space heating and cooling (space conditioning) accounted for more than half of all residential energy consumption. Estimates from the most recent Residential Energy Consumption Survey (RECS), collected in 2010 and 2011 and released in 2011 and 2012, show that 48% of energy consumption in U.S. homes in 2009 was for heating and cooling, down from 58% in 1993. Factors underpinning this trend are increased adoption of more efficient equipment, better insulation, more efficient windows, and population shifts to warmer climates. The shift in how energy is consumed in homes has occurred even as per-household energy consumption has steadily declined.

While energy used for space conditioning has declined, energy consumption for appliances and electronics continues to rise. Although some appliances that are subject to federal efficiency standards, such as refrigerators and clothes washers, have become more efficient, the increased number of devices that consume energy in homes has offset these efficiency gains. Non-weather related energy use for appliances, electronics, water heating, and lighting now accounts for 52% of total consumption, up from 42% in 1993. The majority of devices in the fastest growing category of residential end-uses are powered by electricity, increasing the total amount of primary energy needed to meet residential electricity demand. As described in yesterday’s Today in Energy, increased electricity use has a disproportionate effect on the amount of total primary energy required to support site-level energy use.

Other notable trends in household energy consumption include:

• The average U.S. household consumed 11,320 kilowatthours (kWh) of electricity in 2009, of which the largest portion (7,526 kWh) was for appliances, electronics, lighting, and miscellaneous uses.
• On average, residents living in homes constructed in the 1980s consumed 77 million Btu of total energy at home. By comparison, those living in newer homes, built from 2000 to 2009, consumed 92 million Btu per household, which is 19% more.
• Space heating accounted for 63% of natural gas consumed in U.S. homes in 2009; the remaining 37% was for water heating, cooking, and miscellaneous uses.

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The post Home Energy Use Has Shifted – Appliances now take more juice appeared first on Community Energy Systems.

http://www.greentechmedia.com/articles/read/a-peak-at-solarcitys-new-energy-efficiency-software?

Has SolarCity Created the Amazon 1-Click for Energy Efficiency?

“We believe SolarCity has the best database of residential energy use of anyone in the world.”

Stephen Lacey: June 28, 2013

After SolarCity shifted its energy efficiency strategy and pulled back from doing residential retrofits in-house, the solar services behemoth is moving straight into intelligent efficiency.

GTM’s Eric Wesoff recently reported on SolarCity’s evolving business plan and the resulting changes that company executives say will scale residential efficiency in the same way solar services have scaled residential solar.

But solar is very different from efficiency. For the most part, solar is very standardized and installations are uniform from home to home. Efficiency retrofits encompass an extraordinarily broad category of activities and skills. Incentives are also quite different for efficiency, making it more complicated from a financial perspective. That’s why only a handful of U.S. solar contractors have offered efficiency as an in-house service.

SolarCity decided that doing the retrofit work itself was not the best way to scale. Instead, it has turned from manpower to the power of big data.

The secret sauce is a “simulation engine” that shows homeowners exactly how much they’re spending on energy everywhere in their house. The initial database was created using information from 16,000 home energy audits performed over the last five years. It relies on an algorithm developed at the Department of Energy that crunches 100 million calculations per home for each individual energy efficiency audit (which is still performed by SolarCity when installing solar).

“The simulation software looks at every component in a home in relation to one another,” said SolarCity COO Peter Rive. “Every ten minutes, it thinks about what one thing is doing and about its effect on the rest of the systems within the home.”

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The post Should SolarCity Change Its Name – Changing their name to EfficiencyCity appeared first on Community Energy Systems.

http://www.greentechmedia.com/articles/read/buildings-without-air-conditioners-the-latest-in-energy-efficiency-5413/

Buildings Without Air Conditioners: The Latest in Energy Efficiency

Air conditioners consume an inordinate amount of power in the U.S. and they aren’t very efficiently used. To save energy, some say leave them out.

Michael Kanellos: December 22, 2008

Sometimes the most efficient air conditioning system is not having one at all.

To curb energy consumption, architects with projects in temperate cities – Seattle, Portland, San Francisco – have started to design buildings without mechanical air conditioners. These buildings will have heaters in all likelihood, but not air conditioning (see Can Greentech Make Housing Cheaper and Green Buildings No Subsidies Needed).

“There are only five days a year you need cooling in Seattle,” said Amanda Sturgeon, an architect and senior associate at the firm Perkins + Will, who recently designed a building without a mechanical conditioner.

In some cases, architects are putting in air-side economizers, i.e., computer-controlled windows that open to let in cooling breezes (see The Solar Window). The General Services Administration building in San Francisco uses openable windows on 12 of its 18 floors that let in cool breezes at night that, ideally, keep the offices cool in the daytime.  There is no mechanical cooling in the open office areas.

This shift comes courtesy of two trends. One, building developers and contractors have latched onto green buildings as an economic opportunity. Designing a building to LEED Silver or Gold standards – the environmental building standards promulgated by the U.S. Green Building Council – only adds around 2 percent to the overall cost or less, according to various contractors, architects and researchers. Designing to the LEED Platinum standard can add only 6 percent if carefully planned. The trick, say Sturgeon and others, is to exploit as many passive, design-centric techniques for scoring LEED points before moving on to the potentially more expensive, equipment-centric ones like biomass boilers or new types of lighting systems.

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The post Building The Buildings Of The Future – No Air conditioning is a place to start appeared first on Community Energy Systems.

http://home.howstuffworks.com/home-improvement/construction/green/smart-window.htm

Green Living Pictures

These SwitchLite Privacy Glass windows go from clear to translucent in an instant. See more pictures of green living.

Photo courtesy SwitchLite Privacy Glass

Smart Stuff

• Smart Homes
• Smart Windows Quiz
• PlanetGreen.com: Home Electronics

If you live in the United States, you’ve probably heard recently about the impending energy crunch that is facing Americans. In the next 20 years, U.S. energy consumption will increase 45 percent for electricity, 62 percent for natural gas and 33 percent for oil, according to the Department of Energy (DOE). The DOE also says that energy supplies will be unable to meet demand for the next two decades. For consumers, this means paying higher prices for electricity, natural gas and oil.

While much of the country is concentrating on ways to increase its energy supply, some researchers have been working on new low-power-consuming technologies. Among these new technologies are smart windows, and we aren’t talking about Microsoft’s operating system. This exciting, cutting-edge window technology allows consumers to block either all light or just some by simply turning a knob or pressing a button. This type of light control could potentially save billions of dollars on heating, cooling and lighting costs (research indicates that approximately 2 percent of all the energy used in the United States is “consumed” by residential windows).

In this article, you will learn how smart windows work and how they could save you money.

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The post Smart Windows Are Coming But They Are Not Cheap – But they are effective appeared first on Community Energy Systems.

http://www.bankrate.com/brm/news/pf/20010223b.asp

The top energy-saving home improvements
By Laura A. Bruce • Bankrate.com

These are the top single-family home energy-efficiency improvements that reduce energy bills. The return on investment (ROI) is annual, based on 7 cents per kilowatt-hour.

Example: A homeowner spends $500 to insulate an attic that has no insulation, and saves $25 per month on energy bills. $500 divided by $25 per month equals 20 months. This means the investment paid for itself in 20 months and, for the next 30 years, gives monthly dividends of $25 per month in lower energy bills. The $25 grows each time there is a rate increase.

— Updated: April 17, 2003

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http://alsnetbiz.com/homeimprovement/info10.html

WEATHERPROOFING BASICS

• In all the discussion of insulation and R-values, don’t forget that poor weatherproofing is often a more important source of discomfort, as well as high heating and cooling bills. 

• Some air leakage can be prevented during construction by using housewrap or getting a tight fit between framing members, for example. Once the house is built, however, the remaining gaps must be sealed. Gaps around doors and window sashes should be weatherstripped, and gaps between permanent building materials sealed with caulking.

FIG. 1 – Where caulking should be applied, from the Sunset book, Insulation and Weatherstripping, © Sunset Publishing Corp.

TYPES OF WEATHERSTRIPPING

• The greatest source of air leakage in most homes occurs around doors, windows, and access hatches, such as the ceiling opening from the living area into an unheated attic (Fig. 4). Weatherstripping can be a delicate job because those openings need to be fitted loosely enough that the door or window operates freely, yet tightly enough that air leakage is stopped. 

• The type of weatherstripping you’ll use depends on the location and the type of opening. Three types of weatherstripping are common: 

• Compression–Compression weatherstripping (Fig. 5) is used to seal swinging doors and window sashes. It consists of a molded strip (it may be wood, aluminum or rigid vinyl) with a flexible vinyl bulb along one side. As a rule, compression weatherstripping is the most durable type available. 

• V-Type Strips–V-shaped weatherstripping (Figs. 6 & 7) is fitted against the side of the door or window jamb so it presses against the edge of the door or sash and forms a seal. V-stripping may be vinyl or bronze. 

• Foam–Foam weatherstripping (Fig. 8) is used to seal either swinging or sliding doors or windows. It comes in various sizes with an adhesive backing on one side. It is fastened to the edge of a door or window stop, or to the bottom of a sliding window sash. 

• Thresholds and Door Bottoms–A threshold fills the gap between the floor and the bottom of a door. It may have a built-in vinyl bulb. If not, it must be used in combination with a door bottom (Fig. 9), mounted on the lower edge of the door.

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So if you want to read about all that caulk or look at the pretty pictures about how to install weather stripping. Please go to the sight and look. More tomorrow.

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The post This Piece On Weartherproofing Is Pretty Good – But I am skipping all of the types of caulk appeared first on Community Energy Systems.

http://www.amazon.com/b?ie=UTF8&node=495368

2.

3M 2145C Indoor Insulator Film Mounting Tape, 1 in x 500 inches

Buy new: $7.08 $5.54

25 new from $2.95 1 used from $2.99

Get it by Tuesday, Oct 25 if you order in the next 7 hours and choose one-day shipping.

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3.

3M 2149W Indoor Oversized Insulator Kit 84-inch-by-237-inch

Buy new: $29.28 $21.41

18 new from $18.00

Get it by Tuesday, Oct 25 if you order in the next 7 hours and choose one-day shipping.

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Eligible for FREE Super Saver Shipping.

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This is only a very small sample of what they offer. Go there and see. More tomorrow.

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