Federal government builds a net-zero energy McMansion

I know what you’re thinking, how can a McMansion be green – especially with tiny homes becoming popular – and when you see the photo below you’ll be even more skeptical 전북은행 앱 다운로드. Add in the $2.5 million price tag and it sounds like a bridge-to-nowhere disaster. But before you pass judgement let’s learn more about the home Picpick download.

It’s a 2,700 square-foot house with two stories, four bedrooms, three bathrooms, and an oversized two-car garage. Not your average American home, more like something designed for a wealthy neighbor 다운로드. And that fits because this home has the best green fixtures money can buy. The multi-million dollar price purchases:

  • Configurable solar panels
  • High thermal efficiency building materials
  • Solar water heater
  • Smart thermostat (rooms can have different temperatures)
  • High velocity, insulated heating/cooling air system
  • Humidifier/dehumidifier
  • Ultra-efficient windows
  • Full details – pdf, page 2

The design allows the National Institute of Standards and Technology to turn the home into a laboratory, where they will test all the features – with no one home 다운로드. Lights will turn on in the morning and after work. There will be fake microwaving and fake cheering for a football team on the TV. Garage doors will open and close several times 검색어를 입력하세요 www 4화. All to simulate the energy use of a typical family of four.

All kidding aside, this is a serious scientific experiment, “buildings account for 40 % of the primary energy consumption and 72 % of the electricity consumption in the United States, while accounting for 40 % of the CO2 emissions…will develop and deploy the measurement science to move the nation towards net-zero energy, high-performance buildings in a cost-effective manner while maintaining a healthy indoor environment.”

It’s a great goal – to have net-zero energy homes – but why did they have to do their research on a McMansion 아파치 index.php 다운로드?

 

Learn more about the home – Net-Zero Energy Residential Test Facility (NZERTF)

Continue reading Federal government builds a net-zero energy McMansion

The first high performance – ultra energy-efficient – residence hall

A Passive House certification is one of the highest available for energy-efficient homes 나눔 바른 고딕 웹 폰트. And this residence hall in Belfast, Maine demonstrates that, “space heating costs for TerraHaus are less than $300 per year ($30 per student), a big improvement from the two poorly insulated housing units it replaced, each with an annual space heating cost of about $500 per student.”

That is a 94% reduction in energy bills – helped out by the rooftop solar panels youtube 60fps. The dorm sleeps 10 students and features chemical free building materials and durable fixtures to survive many school years. There is a solar water heater, an ultra-efficient (88%) HRV system that circulates in fresh outdoor air, and windows that absorb and keep in sunshine during the winter (50% solar heat gain) 저 정시에 퇴근합니다 다운로드.

The walls and roof were constructed to minimize any heat loss during the winter. They were measured for thermal efficiency using R-values and the walls achieved a value of 50 and the roof 80-100 다운로드. The typical home has R-values ranging from 18-25 for walls and 50-60 for ceilings 옥류체 다운로드.

It’s an impressive home and worthy of the Design Award it received.

Learn more:

 

Continue reading The first high performance – ultra energy-efficient – residence hall

Moving towards 100% thermal insulation for homes

A home profiled in Wired has six very interesting zero-carbon elements, but it’s the last two that fascinate me – thick walls and ultra-efficient windows 다운로드. Thick walls mean “two 8-inch-thick concrete layers that protect the interior from outside temperature fluctuations. On hot days, the concrete absorbs and retains heat, keeping rooms cool; at night it slowly releases that heat to maintain steady temps around the clock.”

And the windows, “three coats of glazing give these windows more than twice the thermal resistance of standard double-paned glass.”

Both focus on the thermal energy efficiency of a home 다운로드. With the goal of completely insulating a home – no heat lost or gained, no cool air lost or gained. Several homes are being built with the goal of 100% efficiency and that completely alters how a home functions 기타교본. Things like the heat created by our 98.6 degree bodies become important. Facing a home in the sun (cold climates) or away from (hot climates) becomes essential 멜론 2018년 6월 4주차 top100.

And a lot of this can be accomplished with simple building materials, like concrete walls – which can easily be incorporated in building new homes Squirrel sql download. And the more complicated materials, like nanotech windows discussed in the article, can be placed on existing homes:

There’s some revolutionary nanotechnology that’s about to go into the glass—different kinds of coatings that make them five to 10 times more energy-efficient than double-paned windows 유플레이 다운로드. These windows are as energy-efficient as walls.

With these improvements the energy costs of heating and cooling should plummet, and traditional heaters and HVACs can be downsized or turned off for weeks at a time extjs 엑셀.

 

Continue reading Moving towards 100% thermal insulation for homes

CNN profile of a couple moving from a 1,500 to 168-square foot home

There are many who dream of owning the smallest home they can find; a strong reaction to those who dream of owning a two-story mini-mansion. Here is a CNN profile of a young couple who did just that – moving their two kids, cat and dog into a 168 square foot home (on 3 acres of land):

“The things we have are beautiful, enriching our tiny space 해롱이 게임 다운로드. We got rid of so much and kept the beautiful things,” Hazi Berzins said. “Freeing ourselves from consumer debt and living mortgage-free has cleared the clutter to help us see what is truly important: our relationships, our happiness, each moment.”

And Mayor Michael Bloomberg agrees – or he wants to improve the city’s studios – as he announced a contest to design and build 1.8 million studios in Manhattan rix 고딕 b. Each unit is to be less than 300-square feet and contain a kitchen and bathroom.

New Yorkers love their studios, young quirky families love their tiny homes, how about you – do you enjoy your small or large space 다운로드?

 

Continue reading CNN profile of a couple moving from a 1,500 to 168-square foot home

European Solar Decathlon – Solar home creates twice the energy it uses

Our homes were never designed for energy efficiency. So what happens when designers, architects, and engineers approach the problem?

From the European Solar Decathlon:

“The house generates twice as much energy in Hungarian conditions and three times as much in Madrid as the house itself spends,” the Odooproject team states 파나소닉 다운로드. “This amount is able to serve two other house’s needs, or provide a 70-kilometer (43.5-mile) long travel distance – daily – for an electric car.”

Designs like these bring us closer to taking homes off the electrical grid 가자 노동해방. And that is something I’ve heard engineers say is the solution, and the where the trend is going.

Photos of the home:

The central idea is the home is 100% energy-efficient 시민케인 다운로드. In winter that means the slightest amount of heat from the sun gets trapped in the house, and can provide the majority of winter heating.

Continue reading European Solar Decathlon – Solar home creates twice the energy it uses

How does water get to my house?

Through a series of pumps and electricity, from the USGS Water Science School:

Let’s assume that you get your water from the local water department through pipes buried below the streets 더블샤크 다운로드. In other words, you don’t have your own well in your back yard. Chances are that you get your water through gravity and pumps. Cities and towns build those big water towers on top of the highest hills and then fill them with water 다운로드. So even if you live on a hill, there’s a good chance the water tower is higher than your house. Water moves from the tower, due to gravity, and goes down a large pipe from the tower to eventually reach your house 다운로드.

Although gravity supplies the power to move water from the tower to homes, electricity is needed to run a pump to push water from the source.

 

In my city, those water pumps use a lot of electricity 조선왕조실록 원문 다운로드. It is the second largest city expense, using 5.4 million kWh and costing more than $500K a year. (Energy Action Plan, page 21)

 

Continue reading How does water get to my house 항아리게임 무료 다운로드?

The EPA is screwing up the discussion on global warming

The EPA is reporting the wrong information on global warming and I want them to get it right. The information they publish becomes the gold standard and is reported in the media, covered on TV, and published all across the web. It reaches the eyes and ears of a majority of Americans, and so why are they screwing it up 더 길티 다운로드?

The first problem is in using economic terms over plain language. The average person has a hard time understanding the meaning of ‘by economic sector’ or ‘end user emissions’ 다운로드. And nowhere in their mission statement does it say they should be communicating like college professors:

The mission of EPA is to protect human health and the environment 다운로드.

Neither does it say they should communicate clearly, but that’s covered in the Plain Writing Act of 2010 cs4 제품 다운로드.

Another problem they face is choosing what data to report. Again, they seem to be focusing on macroeconomic data sets instead of what will help the average person 스케치업 한옥 다운로드. Here is the data set spread out across 20 pages on the EPA website and reported many thousand times over in the press:

 

Emissions by Economic Sector

  • Electricity generation – 34%
  • Transportation – 27%
  • Industry – 21%
  • Agriculture – 7%
  • Commercial & Residential – 11%

 

Very helpful for the big picture and if you’re writing policy, but worthy of ignoring by the common person 사랑해도 될까요 다운로드. What are they supposed to do about electricity, buy a wind turbine? For transportation, go out and buy a new car? What does industry even mean?

For those steeped in the economics of global warming this makes total sense 고요한밤 거룩한밤 mp3. Our energy is slowly moving towards renewables, cars are becoming electric, homes and business can similarly electrify, and that would make 61-90% of our emissions from electricity 손경제 다운로드. Yes, it is vital we pick up renewables.

But that stymies any discussion about what individuals can do. Here is another data set left to gather dust, buried 200 pages deep in the EPA’s most important report:

 

Emissions by End User

  • Manufacturing – 30%
  • Homes – 18%
  • Business – 17%
  • Personal Cars – 17%
  • Farming – 8%
  • Freight Trucks – 6%
  • Airplanes – 2%

 

End user is an economic term for you bought it you own it 다운로드. Meaning the person who drives the car is responsible for the emissions, not General Motors. From this perspective the story changes entirely. Transportation moves down into a tie for third most important Windows 10 무료. The three ahead of it – manufacturing, homes, business – all represent places where the average person has a significant impact.

Individuals could buy less or switch to recycled products, in simple ways, like buying recycled toilet paper. At home they could lower the thermostat or send less to the landfill. At work they could accept normal temperatures for the A/C and support any green company policies.

It is strange that this data, which places the responsibility on individuals and can easily encourage a change in behavior, is buried in favor of the economic report. It would seem like the EPA is purposely avoiding the issue of responsibility, or letting the economists control the marketing. Either way it’s unacceptable and screwing up the discussion on global warming.

Come on EPA get your head in the game!

 

 

Continue reading The EPA is screwing up the discussion on global warming

What uses the most water in your home?

The average person uses 80-100 gallons of water a day. But where is all that water used 델타포스 다운로드?

  1. Toilet – 27%
  2. Laundry – 22%
  3. Shower – 17%
  4. Faucet – 16%
  5. Leaks – 14%

 

image: EPA

 

Water stats:

  • Showers – 2 gallons/minute – bathtub holds 36 gallons 컴퓨터 게임 다운로드.
  • Kitchen faucets – 2 gallons/minute.
  • Bathroom faucet – 1 gallon/minute.
  • Dishwasher – 4-10 gallons.
  • Laundry – newer uses 25 gallons/load – older 40 gallons/load 카카오톡 맥용 다운로드.
  • Toilet flush – 3 gallons
  • Water the lawn – 5-10 gallons/minute

Cell phone recording of police is ok – says Washington D.C. police chief, Cathy Lanier

We’ve written a number of stories about police officers interfering with citizens who are trying to record the actions of police in public places 연세대 다운로드. In some cases, cops have arrested citizens for making recordings in public. In others, they’ve seized cell phones and deleted the recordings 주토피아 한글자막 다운로드.

The courts and the Obama administration have both said that these activities violate the Constitution. And at least one police department has gotten the message loud and clear 다운로드.

In a new legal directive first noticed by DCist, Washington DC Police Chief Cathy Lanier explains the constitutional rights of DC citizens and gives her officers detailed instructions for respecting them 설문조사 다운로드. She addresses a number of scenarios that have led to controversy in recent years.

“A bystander has the same right to take photographs or make recordings as a member of the media,” Chief Lanier writes 체인지 다운로드. The First Amendment protects the right to record the activities of police officers, not only in public places such as parks and sidewalks, but also in “an individual’s home or business, common areas of public and private facilities and buildings, and any other public or private facility at which the individual has a legal right to be present.”

 

Keep reading: ars technica – DC police chief announces shockingly reasonable cell camera policy

 

Continue reading Cell phone recording of police is ok – says Washington D.C 원피스 필름골드 다운로드. police chief, Cathy Lanier

An airplane is retired every 17 hours – one man decides to recycle one, turns it into a home

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“Humanity is not yet discovering how to use these glorious birds,” Bill Campbell.

 

Bill Campbell opens one of nine exits in the Boeing 727-200 that he converted into a home in rural Hillsboro, Oregon 다운로드. He acquired the jet (for $100,000) at the end of its flying life from Olympic Airways in Greece, had it flown from Athens to Oregon, and finally towed to his land.

 

 

Continue reading An airplane is retired every 17 hours – one man decides to recycle one, turns it into a home

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