Retrocommissioning and Relamping
In order to bolster energy reduction on campus, UConn partnered with Eversource to identify and coordinate implementation of energy conservation measures (ECMs) that will reduce the University’s demand for electricity by at least 3% a year and 10% over three years. UConn continued the fourth year of successful building retro-commissioning and re-lamping programs that have optimized controls for HVAC and retro-fitted lighting and motion sensors in many of the more energy-intensive buildings on campus. These measures have saved $2.2 million in annual energy costs and reduced our carbon footprint 12% since our 2007 baseline year.
This past year, retro-commissioning continued with investigative studies at Rome Hall and the Music Building, and at the chilled water entrances of 26 buildings. Combined, these projects are expected to yield $110,000 a year in energy cost savings and reduce UConn’s carbon footprint by 1,000 tons per year. Also, through July 2015, 31 buildings have been re-lamped with LED bulbs, which became EPA Energy Star-approved and more cost-effective for UConn to install in recent years. These retrofits will result in $72,500 of annual energy savings and 470 Tons Per Year of reductions in CO2 emissions.
Gampel Pavilion, which accommodates thousands for our sports games, recently underwent a comprehensive energy efficiency overhaul, which replaced all lighting with LEDs, installed VFDs to regulate air handlers, and replaced the original chillers and cooling towers with modern equipment for more efficient heating and cooling, will save $100,000 a year in energy costs and trim another 1,000 TPY from our carbon footprint.
Additionally in regards to lighting, UConn accelerated plans to switch all interior and exterior lights with LED bulbs over the next three or four years. LEDs are generally 50% more efficient than the fluorescent bulbs they replace and many times more efficient than halogen bulbs, also used in some buildings, and metal halide bulbs used in parking lots. By 2020, this lighting changeover could produce more than $1.2 million a year in energy cost savings and up to 12,000 TPY in annual carbon abatement.
Click here if you want to read more about Retrocommissioning at UConn.
DEEP’s Lead By Example
Con Ed Solutions was selected as UConn’s Energy Service Performance Contractor (ESPC) under the DEEP’s Lead-By-Example Program. The ESPC approach is expected to implement three phases of energy conservation measures (ECMs) over the next 5 years. The contractor has begun Phase 1 energy audits in order to produce recommended ECMs by late 2015.
- Each ESPC phase will replace 1,500 – 3,000 linear ft. of steam and condensate pipe and infrastructure, which currently returns only 30-35% of steam as condensate to the Central Utility Plant. Each phase of this steam system retrofit is expected to:
- Ensure the safer, more reliable and efficient operation of critical utility infrastructure for heating the main campus,
- Save millions of gallons of water used to make steam currently lost through leaks in steam pipes, traps and the condensate return system,
- Cut an estimated 15,000 million BTUs, which results in savings of up to 1500 TPY in eCO2 emissions and $150,000 a year in energy costs required to generate make-up steam at the cogen facility.
- Each ESPC phase will also include ECMs at various campus buildings, saving an estimated 6 million kwh and $500,000 a year in energy costs, and cutting another 4,000 TPY in eCO2 emissions.
Last fall, OEP coordinated an LED lightbulb giveaway for students participating in the Co-Op’s Textbooks-to-Go program during move-in. Eversource funded the initiative and estimated that student use of LED bulbs for task lighting in the dorms saves more than 600,000 kWh a year, while reducing UConn’s carbon footprint by 400 tons of eCO2 and saving $60,000 in energy costs. Click here for more information.
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