Making Piezoelectricity a Daily Part of Our Lives

An Intriguing Possibility:

 

The eco-efficient technology of piezoelectricity is essentially the concept of capturing the energy of exerted pressure.  The idea of the piezoelectric floor was developed by two MIT students in 2007 and consists of crystal- or ceramic-containing panels that utilize the pressure of footsteps to create charges (a positive charge on the compressed side and a negative one at the expanded side); once the pressure is released, electric energy is created and stored for the energy needs of a building or a public space. 

Piezoelectricity has been used in heavily trafficked areas such as dance clubs and train stations, but to utilize it in any kind of building or public area is rather an intriguing concept. Though, with its high installation costs, it is not an inexpensive tool to implement, I am drawn to the idea of standardizing it in the creation of homes, supermarkets, schools, government buildings, any edifice really. Imagine offsetting the incredible amount of energy that is needed to power the lighting and refrigeration needs of a supermarket simply by the movements of customers and employees. Picture powering school buildings by equipping playgrounds with these panels, helping encourage children’s awareness of the environment and inculcating a sense of responsibility towards it, all while battling childhood obesity through increased activity and fostering the importance of childish exuberance.

However, because this kind of energy depends on an enormous amount of movement (a footstep can only generate enough energy to light 2 60-watt light bulbs for one second), it must be supplemented with other eco-conscious technologies. Since piezoelectric flooring is relatively new (being about five years old), perhaps in time it can be enhanced so that steps create much more power.

For more details on piezoelectric flooring, please visit the following link:
Share

Tallest Tower, Tower Burbank Earns LEED Operations & Maintenance Gold

The largest poured-in-place concrete structure west of the Mississippi River earns Gold!

Burbank, California – Today AEF Consulting, Engineering & Construction, Inc. (AEF) and Tiarna Real Estate Service, Inc. (Tiarna) announce that they have earned the United States Green Building Council’s (USGBC) Leadership in Energy and Environmental Design for Existing Buildings Operations & Maintenance Gold (LEED-EB O+M) certification for the Tower Burbank, a 980,000 square foot Class A commercial high rise building located in downtown Burbank.

The Tower Burbank has been aggressive with regards to energy conservation measures, and by winning the prestigious BOMA (Building Owners & Managers Association) Building of the Year award in 2000 and 2010, building ownership felt another way to distinguish their iconic structure was to earn LEED Certification.

AEF was hired to accomplish this task given the company’s strong technical, construction & green building knowledge.  “Tower Burbank management Staff was doing a fine job with regards to energy management, but after our initial LEED-based analysis, we discovered new opportunities that pay ownership back over time”, said AEF CEO, Moe Fakih.

Some of the cost saving measures rolled into the LEED program included:

  • Replacing over 400 garage lights to LED saving approximately $19,500 annually
  • No and low cost measures equaling approximately $49,000 in costs with a first year savings of $71,000, a less than one year payback.
  • Toilet system replacement saving approximately 42% in water use

“We are always looking to reduce operating costs and drive value”, said Greg Pineda, General Manager. “Not only are we saving money, but we have a healthier work environment since we have switched to green janitorial products, and green construction methods.  We like the idea of reusing construction materials because this helps drive down costs.”

Being fiscally and environmentally savvy helps drive value from the pocket book to the plant’s bottom line.

Share

Washington Budget Charts Course for Green Building Priorities

Bryan Howard
Legislative Director
U.S. Green Building Council

On Monday, President Obama released an ambitious $3.8 trillion budget for fiscal year 2013 that seeks to pump billions of dollars into the economy through clean energy and infrastructure improvements, while seeking to eliminate existing incentives for oil and gas and ending tax cuts for those making more than $250,000.

As part of the Better Buildings Initiative, a 10-year initiative to make non-residential build¬ings 20 percent more energy efficient, the budget aims to re-design the cur¬rent tax deduction for commercial buildings 179D to a credit, and change the eligibility program to cover other taxable entities such as real estate investment trusts (REITS). This budget proposal mirrors a 2012 request made by the Obama Administration, which has yet to get traction on the hill. USGBC has been working with others in the real estate and environmental community to advance solutions to improve the existing 179D so it is encouraging that the Administration continues to show support for improving the deduction.

The budget also includes billions of dollars to modernize at least 35,000 schools across the country, including energy-efficiency upgrades and comprehensive, green retrofits. This proposal was included in the President’s American Jobs Act last year but has yet to be considered by Congress.
Some additional highlights include:

  • Approximately $100 million increase for the Building Technologies Program at the Department of Energy (DOE). The program accelerates innovative, efficient building technologies and practices through applied research and development, and advances the use of energy-efficient and technologies and practices in residential and commercial buildings
  • A $10 million increase for the Energy Information Administration (EIA) at DOE. EIA is the home of consumption surveys such as the Commercial Building Energy Consumption Survey (CBECS) and the Residential Energy Consumption Survey (RECS), which is specifically charged with revitalizing the energy consumption data program to include benchmarking and performance measurement of energy efficiency
  • A $50 million increase at the Department of Housing and Urban Development (HUD) for the Choice Neighborhoods/HOPE VI program, which leverages private sector dollars to transform existing blighted public housing into vibrant and livable communities

While it isn’t all good new and it is too early to know how Congress will act on the budget, it’s good to see that there is an effort to rebuild our communities and our economy while making long-term investments in innovation and infrastructure in core 21st century technologies.

Share

Chandler City Hall Green Building

With its quartzite-clad facades, crenellated council chamber ceilings and mirrored glass windows, the municipal complex of Chandler City Hall, Arizona, exudes elegance. More importantly, however, it is (on the whole) environmentally conscious as well.

Chandler Arizona City Hall Earns LEED Platinum

Flexibly designed office spaces conveniently accommodate shrinking and growing departments (namely, via a demountable wall system for interior partitions) while sidestepping the need for major construction, which translates into fiscal savings and environmental conservancy. Work areas are sensibly set up near the windows, curtailing the need for electrical lighting during the day (although the lighting itself can be dimmed to 10 percent of full output through photocell control). An intricate and beautifully vibrant shading system harnesses the power of the wind through 1,890 hinged, perforated stainless-steel panels and strategically placed, colorful LED lights, every movement of the wind resulting in a mélange of brilliant color and a naturally cooler indoor climate. The cooling tower’s blow-down water is treated in an eco-friendly and aesthetically graceful manner – a waterfall at the side of the courtyard-facing garage flows down to be treated with ultraviolet light in an underground tank and then distributed to the restrooms and landscaping system. It is a sound method of reusing water, particularly since it is treated without the use of chemicals.

While this complex has utilized environmentally helpful structures and tactics, the difficulty of creating an entirely eco-friendly building is nevertheless still apparent in this project. For instance, though I admire the elegant beauty of the quartzite stone, I am concerned about the possibly detrimental environmental effects of mining it. In addition, while the fact that the civic center is built on a brownfield site is certainly a boon to the environment, yet it is also a possible bane to the health of the center’s occupants and visitors. Though it is fortunate that no greenfield sites were destroyed in building the complex and the brownfield site surely must have been detoxified to some extent, there is the lingering thought that the land was at one time polluted with (I am assuming) industrial chemicals and that a land with that kind of history is bound to affect the physical well-being of those who are habitually near it.

Though the use of exterior lighting (the frosted glass of the council chamber building is back-lit at night) may be counterintuitive for a green building, there is something to be said for the splendor of the lighting and the admiration it inspires. Some couples have actually incorporated the city hall into their wedding pictures, which testifies to the significant role that this building and its luxurious lighting play in the lives of civilians. Nevertheless, the use of such lighting will earn a more conscience-clearing justification once solar panels are installed.

One of the most pleasing aspects of this article is the evidence of a shift in LEED perception – it is now seen as being more, rather than less, economical, than constructing traditional buildings. According to Marian Norris, Assistant City Manager, LEED was chosen for this project since it is perceived as being economically sound and fiscally responsible towards taxpayers. As more city governments adopt this method of thinking, it is to be reasonably hoped that LEED and green building industry standards in general will ultimately become the building industry standard.

Share

PACE Financing: Enabling Energy Savings and Job Creation

Article By Scott Henderson, Director of finance, Clinton Climate Initiative (CCI)

With Washington stuck in gridlock on so many issues, innovative local government initiatives may offer the best hope for progress on job creation — and energy independence. New programs recently announced by the cities of Los Angeles and San Francisco are both inspiring and instructive in this regard.

Working with the Clinton Climate Initiative (CCI) and the C40 Cities Climate Leadership Group (C40), both cities launched Property Assessed Clean Energy (PACE) programs to help property owners finance energy efficiency retrofits and renewable energy projects in existing commercial buildings. The programs forge public-private partnerships that aim to spur investment in our built environment, leading to significant energy savings and the creation of construction and engineering jobs. Together, Los Angeles and San Francisco Counties have two billion square feet of commercial building space that stand to benefit.

The potential market for energy efficiency retrofits in commercial buildings has been much discussed. The energy services firm Johnson Controls estimates that these buildings, on average, can be made 22 percent more energy efficient using commercially available technologies such as LED lighting. Capturing these savings would require $12 billion in annual project investment over the next decade. Yet, this potential has largely gone unrealized, due to the limited availability of capital for these improvements.

PACE programs address this challenge by allowing building owners to borrow funds from their local government to pay for qualified energy upgrade projects. Owners repay those funds (plus interest) through a tax assessment which is added to the property tax bill and secured by a lien on the property.

To date, local governments have borne the responsibility for arranging the up-front funds. But the Los Angeles and San Francisco programs utilize a different approach — labeled “open-market PACE” — in which the owner secures funds from private investors. Developed in large part by CCI and C40, the open-market model allows an owner to design a project on their own timeline and then negotiate financing of that project with any number of private investors. It is believed that this flexible approach will make PACE more attractive to commercial building owners, particularly those undertaking large, complex projects with long development cycles.

By leveraging the property tax system to secure repayment from owners, PACE investors can provide financing at more attractive rates and over terms up to 20 years, both of which were previously unavailable to owners for energy projects in existing buildings. The result is that owners can now more easily replace major equipment such as chillers and elevators, which have longer “paybacks” but which also lead to deeper savings.

In this era of government austerity, the programs represent a promising model for public-private partnership. They require no public funding beyond modest start-up costs; and once the local government sets up the program, the private sector can provide the investment capital.

To quell concerns about the property liens that result from PACE tax assessments, San Francisco and Los Angeles have taken great care to design programs that protect the interests of existing lien holders such as the first mortgagee. For example, both programs require written consent from existing lien holders before any tax assessment can be levied, further incentivizing owners to develop best-in-class projects that benefit all stakeholders in the property.

During the program development process, CCI and C40 facilitated active sharing of ideas and best practices between both cities, in an effort to quickly standardize the open-market approach. As a result, Los Angeles and San Francisco will utilize very similar transaction documents and eligibility requirements, allowing investors and contractors to work seamlessly across programs.

San Francisco and Los Angeles stand together with a wide range of local governments, entrepreneurs and investors that have already begun helping our nation put innovative financing tools such as PACE to work. The stakes are high: energy efficiency investment in existing commercial buildings could create 240,000 jobs in the U.S. over the next decade, and avoid some 128 million metric tons of annual CO2 emissions. Without question, PACE programs are gaining momentum and with effective implementation, have the potential to achieve these important results for our economy and environment.

 

Share