TOLEDO (WTOL) - Most of us have used an electric heater to warm water. Well, imagine the amount of energy used to heat a large aquarium like the one at the Toledo Zoo.
The cool thing is, geothermal energy is making heating the 50-year-old aquarium much more efficient.
"We had boilers in both the aquarium and greenhouse that were over 50 years old," said Dr. Anne Baker, CEO of the Toledo Zoo.
Crews are drilling 32, 300-ft.-deep wells, which will be connected to three water pumps and boilers. When the system is finished, it'll work much like the air conditioner in your home.
"The refrigeration cycle pulls heat from the space and rejects it outside, only in this case instead of air, you're utilizing water to take the heat out," said Art Meyerholtz, a senior engineer with the Zoo.
The majority of the energy comes from the ground, which is saving the Zoo big money.
"Our estimates are currently around $25,000 a year in energy costs, so we're saving the zoo money and we're reducing our environmental footprint," Baker said.