Showing posts with label Green infrastructure. Show all posts
Showing posts with label Green infrastructure. Show all posts

Sunday, April 15, 2012

Small Steps to an Energy Independent World, Montpelier's Electric Vehicle Charging Station

All-Electric Vehicle Charging Station in Montpelier, VT
     Yesterday while downtown in Montpelier, I walked behind City Hall and literally ran into something I've never seen before and which given April 22nd and Earth Day is just around the corner it's definitely worth sharing. It's also just another reason why I think Montpelier is the best place to live in Vermont. We do stuff.  Seriously good stuff.  
     In February, the City and Green Mountain Power teamed up to install a free solar powered electric vehicle charging station behind city hall.  It's the third one for GMP so far, with one installed in South Burlington and Colchester.  Last week I pumped over $4.00/ gallon gas into my cars for the second time in my life, the last being in 2008.  I read yesterday how hybrids and all electric vehicles had there best month ever in the Burlington Free Press and here as described in the March 2012 Hybrid Dashboard.  I believe it.  While the current percentage of the total vehicle sales pie is small at 3.5% or so it's a rapidly growing segment of the market fed by high prices at the gas pumps.  

Sunday, May 15, 2011

Community Energy Guidebook Released for Vermonters


     Earlier this month the Vermont Natural Resources Council released its long awaited Energy Planning Guidebook to help Vermont communities become more sustainable and energy independent.  Whether you live here or elsewhere but care about how your community evolves and fights climate change on a grass-roots level check out this manual and video to learn more.
     Whether involving weatherization, installing more insulation, air-sealing, replacing aging heating and cooling infrastructure in your public buildings, schools, churches and housing this information is a helpful starting point.  Many Vermont towns and cities have Energy Committees working independently of each other yet collaborating together to make a difference state-wide.  There's a statewide organization unifying all of the individual energy committees and large and small stakeholders called VECAN (VT Energy Climate Action Network.  It's an exciting group who has held numerous statewide conferences.
     This document is full of best practices culled for years of experience you and others in your community can learn from and extend forward! The guidebook covers why to do it in the first place, how to generally go about it, engaging the public in energy planning, organizing the plan, assessing community needs and opportunities among other areas.  It also shares the latest information about Energy Efficiency and Renewable Energy Development focusing on existing programs, planning for energy efficiency and adding renewable energy along with barriers impeding progress.
     Let me know what you think of the guidebook and if it is helpful to you and your community?

Friday, May 13, 2011

Largest Deep Energy Retrofit in the U.S. Underway - Castle Square Apartments

     I recently wrote about the Promise of Deep Energy Retrofits a few posts ago. Well today, I want to share some news about Castle Square Apartments, an existing 1960’s 192 unit mid-rise tower as part of an overall 500 unit low income housing project located in Boston’s South End, is an example of this growing trend.
US HUD Secretary Donovan is to far right of photo
Mass. Governor Menino is in the middle and congressman
Michael Capuano with glasses is in the back,  
    Today, Castle Square Apartments welcomed Shaun Donovan, U.S. Secretary of Housing and Urban Development, Thomas M. Menino, Mayor of Boston and Congressman Capuano who toured the project to learn more about the nation's "largest and most aggressive energy savings project of its kind".  The joined members of the Castle Square Tenants Organization and WinnCompanies the co-developers and owners of this project.   They came to see for themselves the largest example yet of a Deep Energy Retrofit just beginning construction, an important foundation of a broad based strategy to fight climate change and achieve further energy independence.  It's also a great example of the Green Jobs movement in action.
After picture of Castle Square Apartments
    In a well-attended press conference, the visiting guests shared how they supported the work at Castle Square Apartments.  Secretary Donovan said, "We're proud to be a partner in delivering $6.7 million in funding to this project through our Recovery Act Green Retrofit Program that is creating hundreds of jobs and setting the standard for energy retrofits around the country.  By helping make this development more energy efficient we are also improving the quality of life for the hundreds of families who live here."
    Congressman Capuano said he "...appreciate(s) the oppourtunity to see firsthand how the Castle Square Apartments are being renovated with a specific focus on achieving energy savings. Federal stimulus money is being used to partially fund this project, which is creating jobs and improving the quality of life for tenants."
     Mayor Menino, reinforced how the project positively impacted the surrounding community by saying how it "...will create jobs for local workers, preserve 500 units of affordable housing for current and future working families of Boston, and its green design will contribute to the overall health of our City."  He went on further saying "Thanks to local residents and HUD for the collaboration and commitment to preserving Castle Square as a welcoming home for all who live here now and in the future."
    By reusing the existing housing complex and conducting a deep energy retrofit while part of an overall renovation of the apartment building, Castle Square sets a visionary example for others to learn from. With a goal to cut energy use by 72%, the project will take a deep bite out of it energy bill while dramatically reducing its carbon footprint. It also shows how non-profit organizations can continue to keep their missions viable to provide low-cost affordable housing far into the future, even with aging infrastructure.
Before picture of Castle Square Apartments
    Castle Square is the largest such project (the mid-rise tower portion) currently under construction in the U.S. at least for now. (I see this only as a good thing) The 1960’s era Byron Rogers Federal Office building in Denver by The Rocky Mountain Institute as part of its RetroFit program will likely be the largest but its a ways out for its construction. High profile examples of retrofits such as the Empire State Building while certainly an ambitious success story, with a projected 38% energy use reduction does not meet this more aggressive criteria.   
    A deep energy retrofit is broadly defined as a renovation of building producing at least 50% to as high as over 70% energy savings over existing code compliant buildings.  By heavily upgrading the building enclosure with super-insulation, high performance windows, lighting, advanced building systems and controls energy use as compared to typical buildings can be dramatically reduced.  Such efforts provide positive financial returns and savings over the long run.  Here in the U.S. existing buildings account for 40 percent(%) of the nation’s energy use and 38% if the carbon dioxide emissions. Thus we have a huge challenge before us.
        What Castle Square faced when beginning a renovation process a few years ago is what many face today around the country. Surging energy costs of almost 40% from a year ago clarifies the need to make real strides in energy efficiency to weather unpredictable ongoing operational costs not only for the next heating season but those over the next decade and beyond. Non-profits as well as colleges and universities face tough choices when facing potential renovations.  Deep Energy Retrofits offer a great strategy helping ensure ongoing viability, future affordability and predictability in energy costs.  
    But they require a commitment to integrated design process and deeper sustainability goals than typical projects which produce 30 to 40% energy savings as compared to base code case buildings.  Yesterday's "high performance buildings" getting to this level weren't necessarily short-sighted, they set the standard for their time but its time to turn up the volume on performance.

Wednesday, April 27, 2011

Green Infrastructure_Fixed Solar Arrays at Logan Airport Economy Lot 2


22 Panel fixed solar arrays sitting atop Economy Lot 2 Parking Structure (20 of them
at 3-4 kw each )  Not sure what they're tied into yet but what a great way to use a
parking surface!
It's been a while since I've flown out of Logan airport and the first time I've parked at the new 3000 space economy lot 2 which recently opened last November.  I'm always on the lookout for signs of hope, however small or large in this case.   I know I drove to park here but at least I smiled when I drove atop of this structure.  (of course there was barely any parking on this new economy lot...with cars parked intruding into drive lanes allover)

This urban solar orchard is impressive and can serve as an example for others around the country and world looking for ways to bring solar into widespread use.  A lonely piece of infrastructure like this garage is a perfect location for adding such renewable energy sources.  Like rooftops in many urban locations parking structure upper decks can provide ample solar exposure with minimal sun shading to reduce panel efficiency and output.  The twenty fixed 22 panel solar arrays produce approximately 60+ KW of electricity (my visual estimate) about 12 percent of the garage's energy needs.  Ultra low energy use LED lighting is installed throughout the parking structure further reducing the energy footprint of the new structure.

I understand from my research into MassPort's overall sustainability efforts they use an award winning Sustainable Design Standards and Guidelines on all of their projects.  The (SDSG) is an authority-wide strategy initiated at the direction of soon to retire Executive Director and CEO Thomas J. Kinton, Jr. "to integrate sustainable technologies and practices into all of Massport’s capital projects, reflecting Massport’s long history of achievements in sustainability."  I called Massport's Office of Strategic Communications and Marketing and they were happy to send me a link to a press release about the project.

It was apparently built to provide a centralized economy parking option at ($18/day and $108/week) relieving pressure on numerous nearby over capacity surface parking lots.  However, given how this lot was over capacity during a normal non-holiday midweek I have to ask whether the vision for this lot falls short, ie not enough parking deck levels in the first place?  I hope MassPort and its design team had the foresight to build into the structure the ability to expand upwards with enhancements in structural design to allow future additions.  

Another visible potential green measures was the addition of four story tall screens which someday may hold vegetation and act as living walls buffering the heat-island effect of the sun beating down on the massive concrete parking structure.   These screens were installed on the corners of the garage facing the heaviest traveled roads, likely more of a signpost of "green-ness" than really being effective.  I say may someday hold vegetation as there was no visual evidence of planters and irrigation systems installed (yet I hope!). They are usually installed in planters on the ground level and given the height at midpoints up the structure. The living wall panels could also be lit up a night from hidden LED light sources installed in the ground below the frames to accentuate the green message and enhance visibility.   (MassPort, if you need help in designing these additional green upgrades please give me a shout out.  The structure needs it!)


Doing so would be extremely functional and by using the cooling albedo effect of plants (climbing ivy's and such) the area parking area immediately near the green living wall would be more cool and comfortable.  The bottom line, adding these screens can help reduce the global warming impact of this structure by dampening the heat island effects.  However, the lack of green vegetative ground cover around the base of the structure reduces the opportunity to make a difference.  The monotonous expanse of 3" stone rubble rip rap is alienating from a pedestrian scale however productive it might be from a storm-water filtration standpoint.  I hope MassPort installs some kind of green ground cover there down the road.  Hopefully this is a work in progress!

Maybe that's asking too much of such a back of house building.  The challenge is this element needs cultivating and stewardship over time and access to water.  Storm water run-off from the parking garage roof deck (which must be considerable!) could be stored in cisterns below and pumped up and provide an easy grey water source to nurture the living wall growth which could potentially climb the wire screens.  Those cisterns could also be installed near the upper decks and grey water could gravity feed down the screen. The Solar panels likely could also power the pumps as well as the lighting, elevators and other electrical systems in the building.  

Of course the greater issue is I drove by myself to the parking garage rather than taking the T (Boston's subway and above ground train system)  I called my sister in law who told me there wasn't really a great way to catch a ride to the T off of Interstate 93 north of Boston with adequate long-term parking at the T station.  I could have planned a little more in advance and maybe I could of made this happen.  I'm sure I missed a golden opportunity to do so but I ran out time.  What I wish for is next time I come down, I can park at the Anderson Transportation Center off of 93 and ride a train in to Logan.  I can do this so easily in Chicago with the L and their larger regional trains out of the city core to O'Hare airport.  By riding the train from 15 miles outside the city I would have not added my car's exhaust to the mix of downtown drivers, diverting my ugly CO2 from the mix over the city.  

But, I'm psyched about seeing the roof top solar trackers though! However, if there is a next time for designing and building additional structures like this at Mass Port or other locations around the world I recommend:

  • Ensuring flexibility for later deck additions by building into the design beefier structure and footings.
  • Build actual living wall screening systems watered by gray water retention from roof top storm water run-off.  Not just on a few corners, but over substantial wall surface areas, imagine a "green ivy covered" parking structure?  Talk about branding and messaging green measures!
  • Beef up the solar array coverage on the roof structure.  Why stop at 12% renewable needs?  
  • Invest in more robust green ground cover at the base of structure rather than easy to maintain hard to look at stone rip rap.  Or at least up the ground cover plantings near parking structure corners and entry / exit locations where pedestrians and visitors frequent.
  • Its unclear from the press release whether fly-ash was used in the concrete parking structure but it's certainly an option and resonates with the LEED System.
However, Great job in general and may this be just a beginning for MassPort's journey towards deeper sustainability efforts!  But, consider hardy travelers next time you fly in and out of Logan seek alternatives such as taking the train or buses into the airport rather than even parking here.