Geisinger Health System power plant saves $2.2 million a year
Among U.S. healthcare organizations that have successfully implemented energy conservation measures saving millions of dollars while improving community health, Geisinger Health System has few peers...Full story (.pdf)
Geisinger Medical Center earns EPA's ENERGY STAR certification
Geisinger Medical Center earned the U.S. Environmental Protection Agency's ENERGY STAR certification for 2013, which represents the EPA's national mark of superior energy performance and identifies the facility as one the most efficient in the nation. GMC received a perfect score of 100 from the EPA...Full story
Cogeneration and Steam Turbine Chiller
In November 2011 Geisinger Medical Center took a huge step forward to improve efficiency, cost and environmental impact by switching to a high-efficiency cogeneration system.Cogeneration is the process of simultaneously producing electricity and heat energy for use. While this process is not fundamentally different from utility plant electric generation, the utilities have no place to use the waste heat generated. With cogeneration, the hospital is able to use the waste heat (heating, hot water, sterilization, etc.), thereby significantly improving efficiency and utilizing far less natural resources, benefitting the environment.
In addition, a steam turbine chiller has been installed to more completely use waste heat produced by the cogeneration system. A steam turbine chiller is an air conditioner that uses the power of steam to drive it rather than electricity. When used in conjunction with cogeneration, it is referred to as tri-generation (electricity, heating, cooling). Our steam turbine chiller utilizes summer excess waste heat available from our cogeneration unit. This process allows us to produce 1,000 tons of cooling for free, thereby reducing our peak summer electrical load by one megawatt and saving $300,000 annually.
Solar-Powered Shuttle Bus Stops at GMC
All shuttle bus stops at GMC were updated in spring 2013 with new solar powered lighting. The solar light fixtures are both motion and light sensitive so they stay off when it is dark and when no one is in the shelter. Utilizing energy from the sun is free of cost and there is no need to run electrical wires in and out of the shuttle stops to provide lighting for our employees and visitors.
Energy Efficient Bollard Lighting at GMC
New outdoor LED lighting fixtures were installed along pedestrian walkways at GMC in 2012. The 110 vertical fixtures use 79 percent less electricity than previous fixtures. The new 15-watt LED light bulbs can last up to 50,000 hours and require no maintenance for 10 years. Thus, the new fixtures offer substantial savings in energy and maintenance compared to the previous 70-watt bulbs that provided only 3,000 hours of light and required more frequent maintenance.
This installation is part of a large-scale plan to reduce Geisinger's carbon footprint and related energy costs. Based on data from a carbon footprint calculator, GMC's lighting fixtures will save the equivalent of 739 trees from being cut down, remove two cars from the road and reduce CO2 emission by 19,700 pounds. This is equal to planting two acres of new trees.
Motion Sensor lighting in HfAM Stairwell
A wireless motion sensor lighting system was installed in the South Unit stairwell in the Hospital for Advanced Medicine (HfAM) at GMC in the fall of 2012. The system uses light harvesting sensors to gauge the amount of light needed to illuminate the stairwell based on the amount of natural light that shines in through the windows. The lights stay off during bright, daylight hours but shine when foggy or at night. As soon as the stairwell door swings open, the lights come on. Additional motion sensor lighting systems will be installed in the future around the GMC campus.