This passive house in the Czech Republic uses technology to recycle heat

March 28, 2019 by  
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A unique location and environmentally-friendly passive house design are what define this lovely home on the Czech Republic/German border. 750 meters above sea level and in the middle of a ridge within the Ore Mountains, it almost looks like a modern farmhouse from the outside. On the inside, however, you’ll find a sleek, clean design with light colors, glass and wood. The rustic home was built by Stempel & Tesar Architects and is a certified passive house . A passive house technique dramatically reduces a building’s environmental footprint by essentially reusing the heat generated by electrical and gas appliances (refrigerators, ovens, even computers) to heat the home. A ventilation system is used to supply fresh air from outside the house to keep the air quality clean, and an efficient heat recovery unit contains and exhausts the recycled heat. Related: Green-roofed NY home taps into passive solar with contemporary style Ultra tight insulation and advanced windows that don’t allow for the heat to escape is required to produce a passive house. Conversely, a passive house is also designed to keep your home comfortable in the warmer months. So rather than using a separate heating or cooling device like a heater or air conditioner that drains energy , a passive house can recycle the heat that is already being generated. The result is a low-cost, energy efficient design that reduces the ecological footprint of the home. Outside the home is a covered walkway leading to the front entrance and an exterior of dark wood. Using an environmentally-friendly method, the wood was colored using a heating technique that eliminated the need for synthetic varnishes. The wood was also used to match the two-car garage to the look of the main house, and the roof is made of simple ceramic tiles. The location of the property allows for plenty of sunlight to brighten the home through the large windows. The home is comprised of two levels and also features a living room with floor-to-ceiling windows and a sliding door that allows for the entire house to be opened to the garden in the warmer months. Though the summer is short in this part of the world, the designers still included a winter garden and a covered terrace outside. + Stempel & Tesar Architects Via Archdaily Images via Stempel & Tesar Architects

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This passive house in the Czech Republic uses technology to recycle heat

Here’s what it could take to accelerate Hawaii’s transition to 100 percent renewables

June 6, 2018 by  
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The state is more than a quarter of the way to it’s ‘all in’ commitment to clean power, but the hardest work is yet to come.

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Here’s what it could take to accelerate Hawaii’s transition to 100 percent renewables

We should worry as much about ‘stranded workers’ as stranded assets

June 6, 2018 by  
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Major economic shifts create winners and losers. What risks does the low-carbon transition pose?

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We should worry as much about ‘stranded workers’ as stranded assets

3 ways radical transparency will change your business for the better

June 6, 2018 by  
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But what is radical transparency, you ask?

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3 ways radical transparency will change your business for the better

UK smashes days-old record, goes without coal for 76 hours

April 26, 2018 by  
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Just over a week ago, the United Kingdom set a new record: almost 55 hours without using coal . It didn’t take them long to shatter that record. CleanTechnica reported the country just went 76 hours without the polluting fuel — “for the first time since the 1880s,” according to a National Grid Twitter account . For the first time since the 1880s the UK electricity network has clocked up over 72 hours without the need for coal generation. This new record comes days after the first ever 48 hour period of no coal on the network. — National Grid Media (@Grid_Media) April 24, 2018 The country started their coal-free streak on Saturday, April 21, and went into Tuesday, April 24, ultimately going for 76 hours and 10 minutes, according to the UK Coal Twitter account . This may not be the last record the United Kingdom sets this year; Energy and Climate Intelligence Unit analyst Jonathan Marshall told The Guardian , “Ever rising renewable capacity in the UK will see these records fall more and more frequently, clearly showing progress made over the past decade or two.” The final length of this record #coal free run was 76 Hours 10 minutes. Coal units are now back generating. pic.twitter.com/OauJREXzxN — UK Coal (@UK_Coal) April 24, 2018 Related: The UK just went for a record 55 hours without using coal What did the UK run on in the absence of coal? The Guardian put out a graphic showing the electricity mix from April 21 at 10 AM to April 24 at 10 AM; during that time 30.3 percent of power came from gas , 24.9 percent from wind , 23.3 percent from nuclear , 15.3 percent from biomass or other sources, and 6.2 percent from solar . Electrical engineer Andrew Crossland, who operates MyGridGB , cautioned against replacing coal with gas, telling The Guardian, “Shifting to gas is likely to make our electricity market more volatile as our energy price becomes increasingly locked to international gas markets. That will only hurt consumers.” More coal stations are shuttering — two plant owners in the country have said they’ll close this year, according to The Guardian. What will happen to those brownfield sites? The Energy and Climate Intelligence Unit explored that question in a recent blog post from Marshall, who said one old power station could be transformed into a cruise ship terminal, another into housing, and others as logistics centers. At the time of writing, the UK was on another streak and had already gone 39 continuous hours without coal — could another record be over the horizon? Via CleanTechnica and The Guardian Images via Depositphotos ( 1 , 2 )

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UK smashes days-old record, goes without coal for 76 hours

The data on green data centers is still pretty cloudy

April 24, 2018 by  
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Efficiency gains and clean power investments are adding up for companies such as Google, Microsoft and Facebook, but the pace of digital expansion is making it tough to keep up.

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The data on green data centers is still pretty cloudy

Cities mobilize to avert ‘peak delivery’ congestion

April 24, 2018 by  
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The rise of online shopping is jamming traffic and creating new urban sustainability challenges.

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Cities mobilize to avert ‘peak delivery’ congestion

How the blockchain could transform sustainability reporting

April 24, 2018 by  
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It could be a breakthrough in verification, reaching far beyond self-interested audiences.

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How the blockchain could transform sustainability reporting

Why Berkshire Hathaway’s utility is aiming for 100 percent renewable energy

April 17, 2018 by  
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Hint: it’s about falling costs and rising customer demand for clean power.

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Why Berkshire Hathaway’s utility is aiming for 100 percent renewable energy

Battery storage is reaching the point of no return

April 17, 2018 by  
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Management teams are bracing for the advent of wider battery installations.

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Battery storage is reaching the point of no return

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