If you're sitting in a conventional office building while you read this, take a moment to listen to your surroundings hum and breathe.
The HVAC system, the lights, the water, the elevators, the power and cooling for technology, the heating and cooling for people: all contribute to making buildings a significant source of greenhouse gas emissionsand a leading energy user. In fact, by 2025, buildings will use more energy than any other category of "consumer." (Already today, in the United States, they represent 70% of energy use.) And 40% of the world's current output of raw materials goes into buildings. That's about 3 billion tons ... annually.
Buildings, in short, are expensiveboth in terms of real estate and operating costs, and in what they cost the planet. Fortunately, identifying some key causes brings some key opportunities for creating more green buildings into focus:
Instrumented
Today, many of the systems that constitute a building are managed independentlyand many of them are not managed at all for their occupancy, energy use or thermal effect, due to a lack of sensors and monitors that would be needed to do so.
Interconnected
A lack of standards for measuring energy use and carbon footprints isolates buildings' systems from each other and makes practices that can control and manage energy use more difficult to implement. And the lack of standard interfaces across the broad array of devices and systems in a building makes managing them from a central point or plan nearly impossible.
Intelligent
But with an instrumented and interconnected building, building owners and tenants can make better decisions about the building's energy useand can often rely on the building to "make those decisions" itself. Additionally, smart policiesnew government standards for energy efficiency and incentives for architects, builders, developers and owners, so that savings on future operating costs can go to the people making the upfront investmentscan combine with incentives for utilities to achieve a reduction in buildings' demands for energy and water.

Upcoming Events
06/10/2010 : |
Commercial Geothermal Heating and Cooling Systems |
06/12/2010 : |
Residential Solar Electricity |
06/22/2010 : |
Home Energy Efficiency |
07/20/2010 : |
Recycling: What Everyone Should Know |

Green Tips
Turn Your Computer Off at Night
The energy savings can really add up. In one year, if you shut your machine off at night, you’ll save an average of $90 worth of electricity.
Insulate Your Water Heater
Hot water accounts for 13% of a typical utility bill, so improving efficiency goes a long way. Consider wrapping your old heater in a layer of insulation. For the nominal cost of about $15, an insulating jacket can reduce heat lost through the walls of the tank by 25-40%.
Choosing a better bulb
Switching from incandescent bulbs to compact fluorescent lights (CFLs) will cut your dependence on energy and save you about $25 to $60 per CFL. CFLs may be higher in cost, but each lasts ten to fifteen times longer than an incandescent that provides the same light, at a quarter to a third the cost per hour.