Energy Certificates: Nutrition Facts for European Buildings

Energy Certificates, also called Energy Passports, are documents that profile the energy performance of existing and new buildings within the European Union. The program was initiated as part of the EU Directive on the Energy Performance of Buildings in January of 2006 and will be mandatory throughout the member countries. The goal is to provide [...]

greenPIX: The Zero Energy Media Wall

Energy in = energy out. Only the format changes. Now that is sustainable.

greenPIX, ‘the Zero Energy Media Wall,’ uses architecture and technology to absorb, store, amplify, translate, and display data, both natural and manmade, in an organic system that responds dynamically to the local environment. Creative programming adds even more layers to the already rich [...]

Radiant Heating: GCS Modular Radiant Flooring Panels

GCS Radiant Flooring is a modular, hydronic radiant floor system which is designed for easy installation, simplified maintenance and energy efficiency. Like most energy efficient radiant floor systems, GCS panels heat space using a network of plastic tubes circulating preheated water (or a glycol/water solution). Think of this system as a grid of pre-milled slots [...]

What is an Absorption Chiller?

An absorption chiller, also known as an absorption refrigerator, is a cooling system that uses a heat source, in lieu of electricity and a compressor, to drive the device. The systems are commonly used where excess heat is available and are considered a type of heat recovery device. Trigeneration, production of electricity, hot water, and [...]

Sino-Italian Energy Efficient Building (SIEEB): Covering the Basics First

Sustainability is a simple concept with a varied and challenging means of execution, and it is easy to falter, especially when faced with the myriad of devices, controls and systems designed to make buildings more sustainable. Searching for the latest, most sophisticated strategy for increasing a project’s sustainability does not translate into a sustainable building. [...]

Playing the Building: Harmonics and Transparency of Building Systems

David Byrne, co-founder of the Talking Heads, has turned the New York Battery Maritime Building into a musical instrument. Sitting at a old pipe organ, any ‘musician’ is able to sonically explore the complexity of the building’s system without ever leaving the composers seat. A heavy sound may be for structure. A light sound could [...]

Kelvin’s Conjecture: The Sustainability of Optimization and Integration

”to make as effective, perfect, or useful as possible“ -Definition ‘Optimize’
The National Aquatic Center in Beijing achieves sustainability through the optimization and integration of its structure, envelope, and building systems. In doing so it tells the story of how a little known problem of theoretical physics, Kelvin’s Conjecture, influenced the design of a prominent international [...]

Exploding Wind Turbine Video

Here is a great video of a wind turbine self destructing during a wind storm. The strong wind causes the turbine to spin very quickly and eventually bends the blades backward, hitting the support structure. The result is a frightening example of what a poorly designed or malfunctioning wind turbine can do. Turbines are actually [...]

What is Energy Recovery Ventilation? And why should I care?

Energy Recovery Ventilation (ERV) refers to the recapture of energy typically lost through the building ventilation process. Conditioned air that is routinely being exhausted from both residential and commercial buildings contains significant energy in the form of heat or coolth and humidity which is lost into the exterior environment. As part of a preconditioning process, [...]

Danish Smart House Eco (Prefab) by Valbaek Brorup Architects

All photos by Mikkel Strange
The Danish Smart House Eco is an environmentally friendly housing system which can be optimized in a number of ways to meet the space needs of both individuals and families. Creators Eva Kristine Borup and Stefan Valbaek of Valbaek Borup Architects, designed the system to be flexible to the needs of [...]

The San Francisco Federal Building: A High Performance Sustainable Workplace?

The U.S. Federal Building in San Francisco is one of the General Services Administration’s (GSAs) most visible attempts at designing a high performance government building. The project is one of many started following the 1993 adoption of the “Design Excellence Program,” in which the federal government sought to “reach into the private sector to find [...]

Zollverein School Building: Active Thermal Insulation

30°C Coal Mine Water + Radiant Exterior Wall System + Structure = Active Thermal Insulation
The Zollverein School of Business Management and Design building is a model project for systems integration. It uses a sophisticated Active Thermal Insulation system consisting of preheated water circulating through the facade which allows for thin exterior structural walls perforated [...]

Smith House: A Passive House in Illinois

The Smith House, located in Urbana Illinois, is an all electric house built to the German Passive House Building Standard. To achieve the passive standard, architect and owner, Katrin Klingenberg, created a clean, efficient and comfortable house design using many of the passive house design strategies used in German model buildings. She describes the house [...]

Waldsee BioHaus: First Certified Passive House in the U.S.

In 2006, the Waldsee BioHaus became the first building in the United States to be certified with the German Passive House Building Standard. The house, built at the German Concordia Language Village of Waldsee in Bemidji Minnesota, uses about 85% less energy than a house designed to meet the Minnesota Energy Code. For that reason, [...]

The Passive House (Passiv Haus) Building Standard

(above) The original Passive Houses in Darmstadt
The Passive House (Passiv Haus) standard is an ultra-low energy building design system which uses extremely efficient building envelopes to significantly drive down energy consumption in structures. The standard is completely voluntary but does have an extremely rigorous set of requirements that must be met in order to be [...]

About Greenline

Greenline is an open forum run by the GreenTeam at Ziger/Snead LLP Architects.

Our mission is to collect and share news and information on building technology, strategies, and products both within our office and with consultants, clients and future building occupants. We believe that education is fundamental to good design work, and so we have designed this blog as a resource to learn, explore and share topics such as high performance building, sustainable design, innovative products, health and productivity in buildings, and design aesthetics.

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