Archive for the ‘Energy’ Category

Tendril Smart Meters

Tuesday, March 3rd, 2009
picture comes from the tendril website

picture comes from the tendril website

Tendril is a smart metering company. They have smart meters that can be installed in homes and deliver near real time electricity pricing information. They use distributed software and algorithms to calculate and predict your energy costs during the day with a night time true up of prices using utility data. A next step for this technology would be to deliver near real time energy-service pricing. Delivering energy-service pricing in real time could help people understand how much their cold beers and hot showers are costing them.

Once you start delivering energy services pricing information you open up a world of energy service provision. No longer would people worry about how much their kWh cost, instead they would see that they were paying more than their neighbor for refrigeration services, and they would want to buy the new product that delivers the better lower cost service.

Customers wouldn’t be happy if they had just spent hundreds of dollars on a suboptimal refrigerator. Also, if there is a better refrigerator that provides lower cost refrigeration services in two years, customers are going to want it. Therefore, monetizing energy services would empower customers and drive cradle-to-cradle design of products since companies and customers wouldn’t want to get stuck with underperforming service providing capital goods.

Some steps of exploration within the context of the Green Dorm: Someone could easily monetize the energy services provided to a dorm that is already equipped to monitor its own energy use. If the kWhs are already monetized, then this process would be much simpler.

SF City Hall: Now With Electric Car Chargers

Monday, February 23rd, 2009

car3Last Wednesday, SF Mayor Gavin Newsom announced the addition of electric car chargers in front of city hall in what he called “the first step towards creating the electric vehicle infrastructure of the future”. The chargers are intended for the city’s electric fleet vehicles as well as electric Zipcars and other private but sustainably managed electric car companies, and Newsom hopes they will draw the public’s attention to the feasibiltiy of alternative-fuel and electric vehicles.

Although not strictly a building component, things like electric car charging stations do contribute points to LEED standards, and (I believe) the original Green Dorm Feasibiltiy Study called for charging stations to be incorporated. Seeing publicity aimed at electric cars, especially in this economic climate, is heartening, and worth keeping in sight despite being outside the stricter realm of green buildings.

Gavin Newsom on Electric Cars

Green Roof or White Roof?

Saturday, February 21st, 2009
Let's take a tip from the Greeks

Let's take a tip from the Greeks


This is why I love LBL so much:
One of the senior scientists at Lawrence Berkeley National Laboratory, Hashem Akbari, is trying to counter the effects of climate change by making all rooftops and paved surfaces white, or at least cool gray colors to reflect the sun’s rays, instead of attracting and absorbing heat. (We were talking about this today in CEE 176A as well: how much heat gain comes from the color of the roof tiles. Plus it is cheaper than a green roof… although I do love the idea of a green roof.) Akbari is hoping to launch a 100 Cool Cities program, where the hottest urban municipalities internationally would convert government-owned buildings to white roofs and offer homeowners incentives to make the switch.
The concept of painting homes and buildings light colors to reflect heat is an old one. Growing up in Tehran, Akbari recalled large white structures in the desert that captured night wind to cool the building, keeping the people inside comfortable. Homes built along the banks of the balmy Mediterranean are still painted white to this day (Greece anyone?).
In one study of a “heat island” – a densely packed urban area – Akbari and his team focused on the Los Angeles Basin and found that if all black surfaces were converted to white, the surface temperature could drop as much as 5 degrees. With cooler and cleaner air, a domino effect would occur: Less smog and pollution means fewer health problems, which lead to savings in medical bills. A cooler temperature also means less air conditioning, lower energy use, lower utility bills and so on.
In September, Akbari and his team published a study in the academic journal Climatic Change, which found for every 100 square feet of black rooftop converted to white, a building owner could offset about 1 ton of carbon dioxide. Add to that all the world’s paved urban surfaces (Akbari recommends converting black asphalt to an aged concrete color instead of white), and the team concluded enough cooling benefits to offset 44 billion tons of CO2…  that’s roughly the same amount of CO2 the planet emits every 18 months.
But it would probably take at least 20 years for worldwide conversion, if not more and California is the only state to embrace white roofing, at least on commercial projects (Title 24: a new building standards law that requires all builders and owners of commercial flattop roofs to first consider cool colors for major retrofits or new buildings). The roofing industry has responded well, designing new materials and cooler colors to appeal to builders and home owners who are seeking cost savings and ecological benefits.
So, we should have a white, or light grey or terracotta roof, if not a green roof (which would help with stormwater mitigation, reduce heat island effect, reduce cooling load, give the roof a higher R-value, and increase the life of the roof membrane)…
and maybe even a wind tower??
Here is the article for reference (thanks to my mum): http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2009/02/20/DDTL15VQAG.DTL

Breaking News – Carnegie Mellon is Still Cool

Thursday, February 12th, 2009

A class at Carnegie Mellon University has students taking green back to the drawing board – Literally.

Students created posters designed to influence sustainability

Students created posters designed to influence sustainability

“One of several assignments given by Melissa Cicozi in her Design and Social Change class, the project asks students to design a poster showing how an individual can reduce carbon emissions by changing a single behavior.

While some of the students try to get you to make the switch to fluorescent bulbs, others suggest you turn the lights off altogether. A few encourage you to plant a tree and even consider getting on your bike instead of into your car — all in the name of saving our planet.

Global warming is so overwhelming,” said Cicozi, winner of this year’s Award for Outstanding Contributions to Academic Advising and Mentoring.  “I wanted the students to not only grab people’s attention, but to make viewers feel like one person really can make a difference.”

In a second component of the course, the students get together in groups and study the recycling habits of the Carnegie Mellon community. After careful consideration, they design an improved recycling plan – complete with container and label design, a strategic plan for placement of the containers, a plan for “communicating the plan,” and a proposed ad campaign for the nationwide college and university competition known as Recyclemania.

Encouraging a return to nature can be very productive

Encouraging a return to nature can be very productive

The course’s final component encourages the students to literally dig deep and reach for any remaining scraps of inventiveness: they have to make something out of trash.  Their work will be exhibited and sold at Construction Junction, an organization that supports and promotes conservation in Pittsburgh through the reuse of building materials, starting April 28.

“The students are in the middle of the final project right now,” said Cicozi. “I know they are considering everything from tools and accessories to furniture and housewares.  Any profits will go to Construction Junction, to help them continue their promotion of reusing construction waste and architectural artifacts.”

Cicozi’s Design and Social Change class is just one of more than 100 Carnegie Mellon courses exploring environmental issues through a variety of disciplines. It’s also one of more than 30 courses that integrates environmental awareness as part of the three-year “Greening of Early Undergraduate Education” project, funded by The Henry Luce Foundation.”

Source: CMU Green Practices

 

I think these advertising campaigns are a great and creative way to get students involved and passionate about the Green Dorm and sustainability in general. Can we host events to promote sustainability like we were beginning to plan last quarter?

PG&E and SCE contract 1.3 GW Solar Thermal Plant with BrightSource

Wednesday, February 11th, 2009

Concentrated Solar Thermal Power uses mirrors to concentrate the suns energy and convert it to electricity using a steam, or rankine cycle

Concentrated Solar Thermal Power uses mirrors to concentrate the sun's energy and convert it to electricity using a steam, or rankine cycle

Soon to be added to PG&E’s existing Solar Thermal plant in the Mojave is 1.3 additional GW of Solar Thermal capacity, the largest solar energy deal ever. With the capacity about equivalent to a large nuclear fission facility, this installment will encompass 7 new individual collecting stations spread out over 2 sites. The first of these projects, with a 100 MW capacity, is expected to be completed by 2013. Southern California Edison (SCE) is planning to install 250 MW of distributed photovoltaic generation in the coming years on consumer’s roofs in addition to these solar thermal installations. BrightSource, a solar thermal company based in Oakland, is looking at land across California, Arizona, and Nevada, and hopes to install 4.3 GW of solar projects in the near future. Considering the earth consumes about 16TW, and solar capacity is still around 1 GW, this is a huge step for solar.

 

Full Article: Greentech Media | BrightSource Inks 1.3 GW SoCal Edison Deal

Stanford Daily’s Front Page 3/4 Environmental!

Wednesday, February 11th, 2009

I just thought it was phenominal that of the 4 front page articles on Tuesday, February 10, 2009’s issue of the Stanford Daily, 3 of them pertained to the environment. The articles, “Eco-carnival touts sustainable living,” by Katherine Jewett, “University Eyes Research Money,” by Christine McFadden, and “Professor Contributes to Google Ocean,” by Robert Toews gave a clear impression of where the interests on this campus and in these times lie. An environment-related editorial, “The sky is spitting on me and I want rain,” by Emily Grubert, focused on a lack of community awareness of the serious droughts we are heading into this summer. In total, 4/8 non sports-related articles and editorials in the day’s issue pertained to energy and the environment. Congratulations, Daily Staff, you officially are awesome in my book! Here are some synopses of my favorites… if you like them I recommend the full articles: (more…)

Sequestering Carbon in Cement

Thursday, February 5th, 2009

Moss Landing, where Calera makes cement from smokestack gas

Last week’s post on Permable Pavement reminded me of another sustainable paving material: cement made from carbon dioxide and seawater. This technology has been pioneered by a Northern California company called Calera, situated near the Moss Landing gas-fired power plant. Their process involves capturing the “stack gas” created by the power plant, running it through fresh seawater, and adding the resulting calcium carbonate to a concrete mix for commercial use. Calera claims that they can use up to 90% of Moss Landing’s carbon dioxide emissions for such processes, but it has not yet been fully approved by the construction industry or relevant building authorities, which are generally slow to accept changes.

More research needs to be done on the impacts of seawater intake/outtake and cost-effectiveness of this technique, but it offers a benefit that few other building materials do: it actually sequesters carbon dioxide, not by storing it in leaky underground reservoirs like other CCS techniques suggest, but by creating useful and necessary new materials from it. In all likelihood, CCS-cement won’t be available in time for the Green Dorm, but it’s an interesting technology to be aware of as we move forward, looking for both  sustainable materials and emissions-reduction strategies.

Cement from CO2, Scientific American

Climate Action by Calera, Treehugger

Utility Bill Competition

Monday, February 2nd, 2009

This is a really interesting article from the NYTimes about utilities comparing costumers to their neighbors in order to foster energy efficiency. But if you read a little ways down it discusses college dorm programs that do the same. Very cool….

http://www.nytimes.com/2009/01/31/science/earth/31compete.html

4 More New Green Cities of the World

Wednesday, January 28th, 2009

Victoria, British Columbia (Dockside Green)

Dockside Green

Dockside Green is slated to be North America's first carbon-neutral community

“Victoria, British Columbia, plans to be carbon-neutral by 2012. Its Dockside Green pro ject brings that goal closer to realization. The environmentally sustainable plans for Dockside Green combine residential, commercial, light industrial and green space on 15 acres (roughly 0.06 square kilometers) of harbor-front land.

Dockside Green is slated to be North America’s first carbon-neutral community.

How will Dockside Green achieve its goal to be the first carbon-neutral community in North America? Through a combination of green solutions for buildings, transportation, energy and waste treatment.

Let’s begin with buildings: Those of Dockside Green are being constructed with reclaimed wood from forests that were submerged by reservoirs. Energy-efficient appliances and fixtures (such as motion-sensing light switches), green roofs (rooftop gardens), and carbon footprint monitors (that allow residents to track their heat, energy and water use over time) are outfitted inside homes.

It’s unlikely you’ll find a car or two parked in driveways, either. Residents of Victoria, and now Dockside Green, take part in a clean-fuel and hybrid car-sharing program (even the cars are Smart). In addition, Dockside Green plans include bike and pedestrian paths, subsidized public transit and a harbor ferry.

Energy and waste treatment will be self-contained within Dockside Green. One hundred percent of waste will be treated on-site, and the treated water will be reused to flush toilets and irrigate gardens. A biomass-gasification plant will turn wood waste into energy for heat and hot water.

This innovative green community is under way currently, with the first of three neighborhoods opening in 2009. Upon completion, the entire community will be home to about 2,500 people.”

Source: Colenso, Maria. “5 Green Cities of the Future.” 28 January 2009. How Stuff Works. 17 October 2008.


Sherford, England

Sherwood, England

Residents of Sherwood will face strict monitoring to ensure good environmental behaviors. England plans to unveil 10 of these projects by 2020

“Sherford, in south Devon, is the eco-project of Prince Charles. It will be home to 12,000 people and is planned for completion by 2020. Royal advisors consider it Britain’s greenest future community.

The proposed community will take advantage of cutting-edge green building designs and materials but will look like a traditional English town. Buildings will be constructed with sustainable materials gathered mostly from within a 50-mile (80-kilometer) radius of the site; water and sewer waste will be recycled.

Homes and workplaces alike will put their rooftops to work. The majority of buildings will have solar powersystems, and vegetation will cover the roofs of commercial buildings. About half of Sherford’s power will be supplied from renewable sources in the community: In addition to solar power, plans call for wind turbines.

Lastly, a walkable urban layout will put residences, retail stores and industry in close proximity, reducing the need for cars. In fact, cars will be banned from some areas of the town. Did we mention new homeowners receive a free bicycle?”

Source: Colenso, Maria. “5 Green Cities of the Future.” 28 January 2009. How Stuff Works. 17 October 2008.

Photo Source: Booth, Robert. “Eco Town Dwellers may be Monitored for Green Habits.” 28 January 2009. The Guardian. 26 September 2008

 

Dongtan City, China     

Dongtan City, China has Already Begun Construction, and Will House 5,000 by 2010, 80,000 by 2020, and 500,000 by 2050

Dongtan City, China has already begun construction, and will house 5,000 by 2010, 80,000 by 2020, and 500,000 by 2050

“Dongtan will be a city of three villages that meet to form a city centre. The first demonstrator phase of Dongtan aims to be completed by 2010, in time for the World Expo in Shanghai, and will accommodate a population of up to 5,000. Later phases of development will see the city grow to hold a population of around 80,000 by 2020 and up to 500,000 by 2050.

The delicate nature of the Dongtan wetlands adjacent to the site has been one of the driving factors of the city’s design. We plan to protect and enhance the existing wetlands by returning agricultural land to a wetland state creating a ‘buffer-zone’ between the city and the mudflats – at its narrowest point, this ‘buffer-zone’ will be 3.5 kilometres wide.

The project will increase bio-diversity on Chongming Island, and will create a city that runs entirely on renewable energy for its buildings, its infrastructure and its transport needs. Dongtan will recover, recycle and reuse 90% of all waste in the city, with the eventual aim of becoming a zero waste city.

Green Roofs and Wind Energy are two of the Sustainable Features of Dongtan City

Green roofs, wind energy, and ecological wetland management are some of the sustainable features of Dongtan City

Dongtan eco-city incorporates many traditional Chinese design features and combines them with a sustainable approach to modern living, but not at the expense of creating a city that is recognizable as a ‘Chinese’ city.

With the project now entering the implementation phase, SIIC and Arup have been joined by HSBC and Sustainable Development Capital LLP (SDCL) in a long-term strategic partnership to develop the commercial and financing strategy for Dongtan and other eco-cities in China. A key element of this is the Dongtan Institute for Sustainability which will initially be based in Tongji University. We hope the Institute will become one of the world’s centres of excellence for examining the connection between the environment and economic performance.”

Source:  “Ultimate Eco City.” World Architecture News. 9 April 2008.

Further Reading: McGray, Douglas. “Pop-up Cities: China Builds a Bright Green Metropolis.” 28 January 2009. Wired Magazine. 24 April 2007.

 

Masdar City, Abu Dhabi, United Arab Emirates

“No cars, no waste, no pollution. Doable? Such a city is slated to rise from the oil-rich grounds in Abu

Masdar City, Abu Dhabi, UAE

Masdar City plans to be completely carbon neutral and open by 2016

 Dhabi. Masdar, which means “the source” in Arabic, is a $22-b illionundertaking that could be the world’s first carbon-neutral city [source: Masdar].

Masdar’s sustainable urban development will take advantage of wind, hydrogen and solar-photovoltaic energy sources. Wastewater will be treated and recycled into irrigation systems.

In addition, Masdar’s transportation goals are ambitious. Fossil-fuel burning cars are banned from the city in lieu of an electric personal light-rail system — small, programmable cars that run only when you need to go somewhere, and a pedestrian-friendly city layout.

Masdar is already under construction and will develop over several phases, with completion expected in 2016 [source Inhabitat]. Up to 50,000 people are expected to live in Masdar, and the first residents will likely move in sometime during 2009 [CNET].”

Source:  Colenso, Maria. “5 Green Cities of the Future.” 28 January 2009. How Stuff Works. 17 October 2008.

Photo Source: MasdarUAE.com

Green Cities Close to Home

Wednesday, January 28th, 2009

Treasure Island, CA: Who Knew?

An artists depiction of the planned Treasure Island green development

A Depiction of the Planned Treasure Island Development

Treasure Island, halfway across the Bay Bridge and in the middle of the San Francisco Bay, is an artificial island built in 1939 to house the Golden Gate World Expo, then to be converted into the San Francisco Airport. During World War II, however, it was purchased by the Navy and still bears barracks and other remnants of its militant past. However, in recent years San Francisco City Planners have begun discussing plans to make the island, along with its neighbor Yerba Buena, into a sustainable city. The design calls for many eco-friendly design ideas, including LEED certified buildings, a pedestrian and cyclist-friendly urban center, public recycling and composting programs, wastewater recycling, urban farms, and solar, wind, and tidal powered electricity generation. A large drawback of this development is its seismic location, given it’s man-made history, which presents a large possibility for liquefaction in the event of a major earthquake.

 

For more information see…

Popular Mechanics: Why Treasure Island is the Super-Green City of the Future

Daily Galaxy: Super-Green Citiy of the Future

How Stuff Works: 5 Future Green Cities