Transforming the energy consumer into its producer - is it possible?

Wastewater and water treatment plants are generally the largest single consumer of electricity for any city.

Wastewater treatment and water treatment processes are typically responsible for 25 - 40% of the city's electricity consumption - this is due to the energy-intensive processes and continuous operation cycle (24 hours, 365 days a year)

Changes made in Marselisborg / Aarhus, Denmark, involving, among other things, replacing traditional blowers with high-speed equipment, resulted in a 100% surplus in energy production - this was achieved without adding external organic waste or coal and without additional investment.

The plant currently produces a net surplus of both electricity and heat, supplying it to the district heating system in Denmark's second largest city, Aarhus.

The carbon footprint was reduced by 35%.

https://www.youtube.com/watch?v=Ue9aRh7R8lY

The Marselisborg area in Aarhus, Denmark, has achieved 100% surplus energy production by minimizing consumption throughout the water cycle and maximizing energy production from the wastewater treatment plant. This was achieved without adding external organic waste or coal and without additional investment in renewable energy sources.

According to a report by the International Energy Agency, the water sector currently accounts for 4% of global energy consumption. This figure is estimated to double by 2040. Technologies are already available to transform the water management sector into an energy-neutral one. We can transform more than just water management. Electric drives account for 50% of the world's electricity consumption, but could be as much as 40% more efficient. Globally, this would reduce energy consumption by 8% by 2040.

https://youtu.be/8iwvLzeWKGg

Energy independence of the water sector according to Danfoss

see report "Energy Independence of the Water Sector"