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ENERGY EFFICIENCY FOR END USERS With a Case Study of Energy Progress at Rowan University

AJL RESOURCES LLC – CLEAN ENERGY SYMPOSIUM. ENERGY EFFICIENCY FOR END USERS With a Case Study of Energy Progress at Rowan University. Energy Efficiency Actions . This presentation: Explains why energy efficiency is important

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ENERGY EFFICIENCY FOR END USERS With a Case Study of Energy Progress at Rowan University

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  1. AJL RESOURCES LLC – CLEAN ENERGY SYMPOSIUM ENERGY EFFICIENCY FOR END USERS With a Case Study of Energy Progress at Rowan University

  2. Energy Efficiency Actions This presentation: • Explains why energy efficiency is important • Documents the actions of Rowan University in energy efficiency, renewable energy, and emissions reductions. • Offers suggestions for the implementation of energy efficiency, renewable energy, and emissions reductions at your residence, farm or business.

  3. Why Energy Efficiency ? • High energy costs • Changes in operation and other low cost measures have immediate value • Other measures can have positive cash flow if financed – good return on invested capital • Combining energy efficiency measures and renewable energy measures (or RE purchases) can yield attractive paybacks • Emissions reductions and a better environment - the right thing to do and positive PR • Global and individual security • America has one of the highest energy intensities in the world

  4. Rowan Energy Plan, 1990’s • Rowan constructed a cogeneration plant in the early 1990’s. The central plant houses a 1.5 MW Kawasaki Turbine that supplies three quarters of the electricity and heat for the campus.

  5. Energy Improvements, 1990 - 2004 • Lighting retrofit with T-8 lighting • 30% of the entire campus has been retrofitted (5 buildings).

  6. Energy Improvements, 1995 - 2004 • 45 variable speed drives on motors, fans and pumps installed from 1995 – 2002. • 10 - 50 horsepower

  7. Energy Improvements, 2004 • Rowan University Facilities began testing biodiesel fuel in their lawn tractors as a pilot program. (2004) • Successful outcomes will result in the expansion in use of this fuel.

  8. Energy Improvements, Ongoing • Recycled 98 tons of paper in 2003, resulting in: -1,960 trees saved -686,000 gallons of H₂O saved -294 cubic yards landfill space avoided -5,980 lbs. of air pollution avoided -enough energy saved to supply 49 homes for a year.

  9. Energy Actions, 2004 • In 2004, Rowan University became an ENERGY STAR Partner Institution • Requires Benchmarking of Energy Use at Buildings and Implementation of Cost Effective Energy Efficiency Measures • Applicable for Schools, Hospitals, Offices, and Other Buildings • AJL Resources LLC is an Energy Star Partner (2001) • Positive Public Image and Standing in Community

  10. Ongoing Energy Management • ENERGY MASTER PLAN • Energy Purchasing Cost Reduction • Energy Cost Control Measures (Kw, PF) • Energy Use Auditing • Buildings and Infrastructure • Energy Metering • Project Implementation • Energy Growth Projections – A Campus Growth Plan • Energy Sources – Cogeneration Plant • Continuing Input from Energy Panel STUDENTS

  11. Future Efforts • Rowan plans to expand and retrofit its old cogeneration plant. • The new cogeneration plant is sized at 4.7 MW. • It will avoid $1,375,000 in fuel and electric expenses per year. • Reductions in CO₂ emissions: approx. 8,950 tons/yr.

  12. Future Efforts • Retrofit 1 million sq. ft. of buildings with energy efficient lighting. • Cost over $1 million. • Project will save over $200,000 per year. • Provides a 5 year payback. • Avoid 1,238 tons of CO₂ emissions per year.

  13. Future Efforts • A geothermal heat pump system is being investigated to replace the heating and cooling system in an existing 100,000 sq. ft. townhouse complex. • Estimated to cost slightly more than a conventional system • However, life cycle operating costs (capital costs, energy costs and maintenance costs) are lower.

  14. Future Efforts • Installing submeters. • Read remotely. • Provide automated reporting. • 5 year payback. • Avoid 537 tons per year of CO₂ emissions.

  15. Future Efforts Rowan plans to take a leadership role, along with the NJHEPS Energy Technical Team, in the development of a wind energy farm in south New Jersey to serve several higher educational institutions.

  16. Future Efforts The planned technologies allow Rowan to expand its projected 235,000 sq. ft. and still maintain a greenhouse gas emissions levels at or below 1990 levels.

  17. Energy Efficiency Measures ENERGY BALANCE ELECTRIC COGEN PLANT End Uses – Light, HVAC, Water Heating, Etc. HEATING PLANT GAS OIL Electric 15,000 Btu/sf/yr Thermal 50,000 Btu/sf/yr

  18. Energy Efficiency Measures BIG ENERGY USERS • Lighting • Air Conditioning • Heating • Domestic Hot Water • Computers • Industrial Processes

  19. Energy Efficiency Measures LIGHTING • Timers / Photocells • Motion Sensors • Compact Fluorescents (socket/pin) • Lower wattage lamps • Electronic Ballasts (T8 or 5 Technology) • Pulse Start HID fixtures • Dimming and Autotransformers (all) • Daylighting, Light Shelves , Computer Scheduling

  20. Energy Efficiency Measures AIR CONDITIONING • Highest EER units (11 to 13 for Residential) • Water Source verses Air Source • Programmable Thermostats • Computer Control - Schedule • Exhaust Air Recovery (Heat Wheel – Plate and Frame) • Match Outside Air to Requirements • Spot Cool • Dehumidify • Cool Roofs • Proper Condenser location and maintenance • Dehumidification – Avoid reheat • Schedule or convert electric reheat • EFFICIENT CHILLER PLANT DESIGN

  21. Energy Efficiency Measures HEATING • Highest Efficiency units (93% condensing furnaces / boilers for Residential) • Programmable Thermostats • Computer Control - Schedule • Exhaust Air Recovery (Heat Wheel – Plate and Frame) • Match Outside Air to Requirements • Spot Heat • Insulate and Weatherstrip (also for AC) • Heat Pump reheat with gas • Solar Assist for heat pumps

  22. Energy Efficiency Measures COMMERCIAL & INDUSTRIAL USERS • Farms and Wastewater Treatment – Methane Cogeneration • Steam/Hot Water Absorption Air Conditioning • Gas Cogeneration (80% vs. 40% efficient) • Energy Efficient Motors and Variable Speed Drives • Pipe Insulation • Solar Films • Energy Efficient Design • Steam Traps • Industrial Processes – Efficient Microprocessor Driven Equipment

  23. Energy Efficiency Measures MISCELLANEOUS ENERGY USERS • Domestic Hot Water – Lowest Temp possible, insulated tank, scheduled temperature, Solar or Gas, tankless and point of use technologies • SOLAR SWIMMING POOL HEATERS • Computers – Shut off monitors and computers (software and hardware) • Industrial Processes – Site and Industry specific

  24. Energy Efficiency Measures SUMMARY • By addressing the envelope of your facility, and by upgrading and scheduling the operation of mechanical and electrical systems, most users can cost effectively save between 10 – 30% on their energy costs • There are direct rebates / tax incentives for residential and for commercial users in NJ • There are sources available to help • Energy efficiency is beneficial to you, your organization, the environment and global security – we MUST become energy efficient

  25. Energy Efficiency Resources • Al Lutz, P.E., CEMAJL Resources LLCajlutz1@aol.com • DOE, EPA, Alliance to Save Energy • LEED (for Energy Efficient Design) • WWW.NJHEPS.org

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