250 likes | 363 Views
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
E N D
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 • 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.
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
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.
Energy Improvements, 1990 - 2004 • Lighting retrofit with T-8 lighting • 30% of the entire campus has been retrofitted (5 buildings).
Energy Improvements, 1995 - 2004 • 45 variable speed drives on motors, fans and pumps installed from 1995 – 2002. • 10 - 50 horsepower
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.
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.
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
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
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.
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.
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.
Future Efforts • Installing submeters. • Read remotely. • Provide automated reporting. • 5 year payback. • Avoid 537 tons per year of CO₂ emissions.
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.
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.
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
Energy Efficiency Measures BIG ENERGY USERS • Lighting • Air Conditioning • Heating • Domestic Hot Water • Computers • Industrial Processes
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
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
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
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
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
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
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