By Brad Segall

NORRISTOWN, Pa. (CBS) — Montgomery County is making a two million dollar plus investment to make the courthouse in Norristown more energy efficient as county officials strive to reduce energy consumption by 50 percent over five years.

The county has inked a $2.4 million contract with energy company Constellation for water and power consumption measures that officials say will save the county nearly double that amount over time.

The improvements include new lighting, weather stripping and caulking, low flow toilets and faucets, and automated thermostat controls.

County Commissioner Josh Shapiro says this will save 2.2 million pounds of carbon dioxide annually.

“That’s equivalent to removing 265 vehicles off the road, eliminating 451 tons of waste from landfills and the energy from 115 homes a year.”

The county also expects to conserve an estimate three million gallons of water a year.

Constellation officials say the goal is to get efficiency without jeopardizing comfort. Work should be completed by the end of this year.