Nexus Marketplace Update: Cooling Tower Analytics
After NexusCon, an energy and water manager at a large national healthcare system came to us with a problem that keeps facility and energy teams up at night:
đ Cooling towers sit at the intersection of energy, water, risk, and uptime, yet most owners canât actually tell if theirs are performing well.
They had BAS data. They had monthly water treatment reports. They still couldnât answer basic questions like:
- Are we running at the right cycles?
- Is the treatment program actually working?
- Are we wasting water or energy?
- How would we know before it shows up in a bill or a failure?
We worked with them to map the gap. What emerged was a clear need for cooling tower performance analyticsâtools that sit above raw sensor data and treatment controllers to continuously infer makeup, evaporation, blowdown, weather impact, and treatment effectiveness across a portfolio.
Vendors such as Aquanomix, Phigenics, and Hohmeyer Consulting focus on this category, turning tower behavior into actionable steps for operators.
This category fits directly into day-to-day owner workflows: FM teams use it to spot operational issues early, EM teams use it to verify savings and water performance, and both use it to hold treatment vendors accountableâwithout becoming water experts themselves.
This conversation led us to create a new Nexus Marketplace category so owners can find vendors who do this well. We've created a new "Water Management" domain, populating it with Cooling Tower Analytics and 7 other categories with 34 unique vendors.
For most facility managers, cooling tower performance is a black box. The current ecosystem is fragmented: water treatment contractors often "report on themselves" via static PDFs, while proprietary controllers from OEMs remain siloed with poor API support. This lack of transparency forces owners to fly blind on cycles of concentration, drift, and evaporation, leading to unmanaged Legionella risk, chemical over-treatment, and premature equipment failure.
We define Cooling Tower Analytics as "Vendor-agnostic, portfolio-scalable platforms providing real-time performance analytics (cycles of concentration, drift, blowdown), automated ingestion from tower controllers, weather-normalized KPIs, and treatment-program performance monitoring."
By ingesting data from makeup meters and conductivity sensors, these platforms serve as a neutral tool for FMs and Energy Managers to use for data-driven capital planningâknowing exactly when a tower needs replacement rather than a simple adjustment to the chemical program.
Learn more:
- Check out Cooling Tower Analytics in The Nexus Marketplace here.
- Sign up for the Nexus Labs newsletter to get five similar stories for owners each Wednesday:
After NexusCon, an energy and water manager at a large national healthcare system came to us with a problem that keeps facility and energy teams up at night:
đ Cooling towers sit at the intersection of energy, water, risk, and uptime, yet most owners canât actually tell if theirs are performing well.
They had BAS data. They had monthly water treatment reports. They still couldnât answer basic questions like:
- Are we running at the right cycles?
- Is the treatment program actually working?
- Are we wasting water or energy?
- How would we know before it shows up in a bill or a failure?
We worked with them to map the gap. What emerged was a clear need for cooling tower performance analyticsâtools that sit above raw sensor data and treatment controllers to continuously infer makeup, evaporation, blowdown, weather impact, and treatment effectiveness across a portfolio.
Vendors such as Aquanomix, Phigenics, and Hohmeyer Consulting focus on this category, turning tower behavior into actionable steps for operators.
This category fits directly into day-to-day owner workflows: FM teams use it to spot operational issues early, EM teams use it to verify savings and water performance, and both use it to hold treatment vendors accountableâwithout becoming water experts themselves.
This conversation led us to create a new Nexus Marketplace category so owners can find vendors who do this well. We've created a new "Water Management" domain, populating it with Cooling Tower Analytics and 7 other categories with 34 unique vendors.
For most facility managers, cooling tower performance is a black box. The current ecosystem is fragmented: water treatment contractors often "report on themselves" via static PDFs, while proprietary controllers from OEMs remain siloed with poor API support. This lack of transparency forces owners to fly blind on cycles of concentration, drift, and evaporation, leading to unmanaged Legionella risk, chemical over-treatment, and premature equipment failure.
We define Cooling Tower Analytics as "Vendor-agnostic, portfolio-scalable platforms providing real-time performance analytics (cycles of concentration, drift, blowdown), automated ingestion from tower controllers, weather-normalized KPIs, and treatment-program performance monitoring."
By ingesting data from makeup meters and conductivity sensors, these platforms serve as a neutral tool for FMs and Energy Managers to use for data-driven capital planningâknowing exactly when a tower needs replacement rather than a simple adjustment to the chemical program.
Learn more:
- Check out Cooling Tower Analytics in The Nexus Marketplace here.
- Sign up for the Nexus Labs newsletter to get five similar stories for owners each Wednesday:


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This is a great piece!
I agree.