Challenge:
Expensive, inefficient streetlights
Inefficient Water Treatment Facility
Needed to rebuild Lagoon Waste Water Treatment Facility
Increased natural gas costs for the city
Manually read natural gas and water meters
Solution:
City-wide energy conservation plan
New, energy efficient LED streetlights
Upgrades to water treatment facility that use degasifiers to improve water aeration and process efficiency
Rebuild of waste water treatment plant to improve treatment capacity
Water and gas meters converted with advanced metering infrastructure (AMI)
technology
Installation of web-based controls systems in four buildings
Select facilities upgraded with interior and exterior lighting with
motion sensors
Results:
In one year, the city’s streetlight bill has been reduced by nearly
60%
566 streetlights upgraded, reducing operation and maintenance cost 48% per light
Reduction in costs created by customer issues and meter re- reads due to the
replacement of 1,744 water meters and 973 natural gas meters
Received $13,000 rebate as a result of lighting overhaul project
Removal of excess sludge and improved treatment capacity of WWTP
Improved upstream natural gas procurement to reduce cost of gas to the city
Guaranteed total savings of over $9.3 million over the 20-year
project
