Green Building Elements

Even in a Greencentric city like Berkeley, locals and Bay Area visitors would be Green with envy when they see the just opened David Brower Center. It feels healthy just to walk through the Green down-to-the-bones building which combines advanced technology along with simple recycled materials.

When entering for their housewarming party we had a difficult time not noticing the soaring concrete walls which made us think more dot com than gallery. The fact that in creating a building with an oh- so-feathery carbon footprint (when compared to most structures) Principal Architect, Daniel Solomon included up to 70 percent slag in those walls. Read the rest of this entry »

Sometimes being green means taking on the “less is more” philosophy. Such would be the case with the Cavallo Lodge over in Sausalito. For the recently opened lodge, about half of the current lodge rooms they converted from the previous officers quarters, military barracks and the like. But don’t think of this place like Full Metal Jacket but rather Organic Cotton Robe.

We visited there a few months ago for the Going Green conference but we didn’t get a chance to survey the property much. This time, we got to stay over and even check out the spa. (Life is tough) The lodge, waiting for LEED Silver certification, offers new rooms and the classic ones. Even though the new ones offer radiant heating and the hot water comes via tankless water heaters, which reduce the energy consumed by those dinosaur era traditional water heaters. They installed photo-voltaic panels on 12 of the 14 new buildings’ south-facing, standing seam metal roofs which produce about 75 percent of the electricity necessary to run the buildings.

We cozied up in one of the existing building rooms which offer more charm (like the tine roof ceilings and the detailed antique radiator). By reusing the existing buildings, they already considered their carbon footprint. We can only be impressed by the fact that the brains and money behind the lodge used nearly 100% of the building shells and retained or repurposed roughly 75% of the building cores. We applaud these efforts as they not only extend the life cycle of existing building stock, conserve resources, and reduce waste but it also retains cultural and historical resources.

Although we couldn’t see the insulation we knew that they used blue jean insulation in the contemporary lodging and a portion in the Healing Arts Center. Speaking of the Spa, they constructed the floors and ceilings from rapidly renewable materials such as bamboo, wool or cork. Besides green building attributes they offer creativity by repurposing plastic dry cleaning bags (that come off site) for spa guests to take home their wet bathing suits.

Almost no other plastic can be seen on property and the staff couldn’t be nicer (as well as pretty well informed about the green aspects. Now if they could only get rid of the few incandescent bulbs (in the spa and the lodge) then we would be that much more pleased.

Photo by Kodiak Greenwood

Do you dread getting your December electric bill?  Holiday lights and decorations can be a drain on your wallet, as well as the environment.  However, new technology can help you save money and lower your carbon footprint.

LED holiday lights:

• Are safer (they don’t heat up like normal incandescent lights)
• Use less electricity (40 watts for a 100 light incandescent strand, versus approximately 8 watts for a similar LED strand)
• Last longer (average expected life is 25,000 hours)
• Can be strung together in larger amounts (up to 25-75 strands in one long string, versus 3-5 for incandescents)

Sounds great, huh?  But, as I discovered, there may be some hidden issues with LEDs.

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New York City goes green by launching a 100% wind and solar powered billboard this Holiday Season.

As alternative energy continues to be the hot topic in our flailing economy, New York City sets an environmental example by launching Times Square’s first 100 percent eco-powered billboard.

The billboard powered entirely by wind and sun, is the first such sign in New York City. It will be erected by Ricoh Company, Ltd., a Japanese company that strives to be outstanding in all areas of the environment, society, and the economy. Their first eco-signage project dates back to April 2003 in Osaka, Japan.

Powered By Wind Turbines and Solar Panels

The electricity for the billboard will be produced entirely by solar and wind power and stored in 16 batteries. No electricity will be purchased from local power companies.

Sixteen wind turbines and 65 solar panels will produce an average of 98 kwh of electricity per day (93 kwh from wind power and 5kwh from solar). To put the savings into perspective: the same amount of electricity required by an ordinary sign would result in as much as 18 tons of carbon dioxide per year. The batteries can hold four days worth of supply. However if there is insufficient wind or solar power, the sign may not light up, an eventuality that Ricoh readily accepts.

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Leave it to the State Compensation Insurance Fund, the quasi-public workers’ compensation insurer based in San Francisco, to bring more green building to the Bay Area. Okay, we’re stretching it a little to call Vacaville the Bay Area but what’s a few miles for a true green building.

The fact that the $77 million green campus that consists of three 85,000-square-foot buildings diverted more than 20 percent of the building materials from the nasty old landfills. Much of those materials included concrete and cork and rubber flooring. Not only did the architect HOK and Milpitas-based Devon Construction reduce waste by using recycled building materials, but State Fund diverted a whopping 75 percent of construction waste away from landfills to recycling vendors.

This campus which expects to receive LEED Silver certification early next year, hit a big on the energy savings front with solar panel system, energy-efficient light fixtures, lamps, heating and cooling systems and other electrical equipment; and in the high-tech world they added “server virtualization” technology that reduces the number of servers needed to support the facility. The Green IT people must love that.

We (and probably most of the 750 workers) applaud the use of various low-emitting materials such as adhesives, paints and carpets. They also significantly reduced the building’s water footprint by incorporating low-flow toilets, waterless urinals, and an irrigation system using non-potable water.

We say that that is $77 million dollars well spent.

Photo credit: Steve Proehl

Ever wanted to know exactly how much electricity and water you were using in your home or office right now?  With Advanced Telemetry’s new EcoView system, you can learn that and much more.

The EcoView system provides information on a home’s or small office’s energy and water consumption rates, trends, identifies energy drains, and tracks goals.  The system is completely wireless and has a keypad display or can be viewed on a home computer.  With the information provided by this system, home and small business owners can better track energy use and take measures to reduce it.  Read the rest of this entry »

This post, like the masses of crowds, makes its way inside the just opened Academy of Sciences Museum. And why not as the Museum just became the largest LEED Platinum building in the world as well as the world’s most sustainable museum building. Take that Louvre.

As a Green building, the designers highlighted the new qualities but the also the previously used materials. What could be more famous then the seahorse railing and the colorful original tiles that surround the old favorite alligator swamp exhibit? Both the unique decorations are back. Okay, we’ll get to the bigger stuff.

One of the biggest challenges for this building was to optimize the natural light from the 200 some odd roof skylights to reach the living rainforest and coral reef. Unfortunately no LEED for Aquariums exists so the designers had balance radical ideas with practicality because they could take a chance that the wildlife wouldn’t survive.

The new aquariums displays contain twice as much water as the original, however they use less potable water because of filtration and recycling systems that purify water piped in from the Pacific Ocean. They purify the nitrate wastes using natural systems, ensuring that aquarium water can be recycled and reused. We also liked that they used 50% recycled content for the aquarium’s concrete.

Of course, everything can’t be perfectly green in a building. We cornered Water Planet designer Tom Hennes who (together with Urban A&O) designed the exhibit’s innovative wall treatments, about things that he would have liked to changed in regard to making the aquariums more green he said,  “It’s hard to live without fiberglass.”

Even with the fiberglass we’re happy to be living with the fishes in this extraordinary green icon.

Utility-scale windpower is an important and growing part of the US energy portfolio. Farms ranging in size from dozens to hundreds of turbines can produce in excess of 60 megawatts of power. Plans for gigawatts of wind power are being proposed all over the globe, and new wind farms are regularly being proposed that outstrip one another to be the largest in their respective locations, or in the world. At the far end of the scale, the largest size wind turbines have a rotor diameter of 126 meters (413 feet), and are estimated to be capable of producing 20,000,000 kilowatt hours of electricity annually (enough to power as many as 5000 European homes). Since the power generated by a turbine increases exponentially as it gets larger, new turbines will continue to grow in size.

But small-scale turbines are perhaps a more exciting realm of development. The standard, propeller-style turbine is well established, and there are many suppliers for this kind of generator in a range of sizes. In 2007, Home Power Magazine had a roundup of more than a dozen small wind turbines ranging from 8 feet to 56 feet in diameter (the latter of which is far larger than even a large, inefficient household would need for their power requirements). Green Building Elements had a review of this article last year.
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Home automation systems (such as Colorado vNet and Control4) are becoming a necessary amenity in any high-end home, but are they also a new tool in our fight to reduce energy use and global warming? After all, these systems are designed so that you can control your high-end AV components, home security system, lighting and HVAC from one device (or via the web from somewhere else), so why not add energy conservation to the mix, right?

The idea is that these high tech systems will minimize or eliminate the wasted energy from lights left on by accident, vampire loads from home equipment in the “off” state, thermostats set too high or low for usage patterns or climate conditions, etc - the automation systems themselves will set things right even if you forget. We’ve certainly written about how important it is to kill of these wasteful elements, but are they big enough to warrant buying one of these systems just to reduce them?

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Recessed can lighting is a familiar method of lighting rooms.  Rather than having fixtures protruding into the space, the light source is hidden in a recess in the ceiling, reducing glare.  But, when the ceiling above is insulated, the can light fixture is a potential source of air leaks and thermal bridging.

I recently got a press release from a company advertising a product to quickly and easily “convert” recessed can lights to a pendant light look.  But, after a brief look, it turns out to be a particularly bad case of greenwash. Read the rest of this entry »