Commercial chilled-water central plant with water-cooled chillers, pumps and piping
Chilled-Water Energy Optimization

Reduce Plant Energy Without Replacing Your Existing Controls

Facil.ai works through your existing building automation system to continuously optimize chilled-water plant performance. There is no new field hardware to install, no capital expenditure and no requirement to replace the BAS your operators already use.

Commercial Value

Verify the Savings Before You Commit

Facil.ai begins with a 30-day trial at no cost. The platform integrates with the existing BAS, observes plant operation and begins making controlled optimization adjustments within the approved operating limits. Performance is measured using the facility's actual operating data.

30 Days

No-cost performance trial

$0

Capital investment required

$1.50

Monthly platform fee per optimized ton

$3.00

Minimum monthly savings per optimized ton

The ongoing performance target is at least twice the platform's monthly cost. Savings are reconciled monthly, creating continuing accountability rather than relying on a one-time projection.

Final pricing, eligible tonnage, baseline methodology and savings reconciliation are established during technical qualification and documented in the customer agreement.

How It Works

Continuous Optimization in Five-Minute Intervals

Traditional condenser-water reset strategies generally follow fixed schedules or predetermined formulas. Facil.ai evaluates the plant's actual response every five minutes and determines whether a controlled setpoint adjustment can reduce total energy while maintaining operational requirements.

1

Connect

Securely integrates with the existing BAS and available plant data.

2

Observe

Learns how load, weather and equipment conditions affect plant performance.

3

Optimize

Evaluates and refines condenser-water reset in five-minute intervals.

4

Verify

Measures the effect on plant performance and energy consumption.

5

Reconcile

Documents and reconciles verified savings each month.

Facil.ai evaluates performance every five minutes and makes a controlled adjustment only when appropriate — it does not blindly change the setpoint on every interval.

Whole-Plant Efficiency

Optimize the Plant—not Just One Piece of Equipment

Lower condenser-water temperature can reduce chiller compressor energy, but it may increase cooling-tower fan or pump energy. The objective is not simply to produce colder water. The objective is to identify the operating point that reduces total plant energy while continuing to satisfy cooling demand and equipment requirements.

Facil.ai considers changing plant load, outdoor conditions and equipment response so the optimization strategy can adapt as operating conditions change.

Total Plant Energy

Chillers
Chilled-water pumps
Condenser-water pumps
Cooling-tower fans

Visual equation

Total plant energy = sum of all plant energy consumers

Existing-System Integration

Works With the Controls You Already Own

Facil.ai is a software-based optimization layer designed to operate through the existing building automation environment. The original BAS remains in place, along with its alarms, safeties, operating limits and operator oversight.

Existing plant equipment
Existing BAS
Facil.ai optimization
Verified performance results
No BAS replacement
No new field sensors or controllers required for a qualified plant
Maintains existing equipment safeties
Preserves operator visibility and override authority
Supports defined operating limits and rollback procedures
Minimizes deployment disruption

Not every plant automatically qualifies. Existing BAS points, instrumentation, data quality and control capability must first be confirmed.

University-Proven Performance

Demonstrated in University Central Plants

California State University, Dominguez Hills

  • Three 1,000-ton JCI/York water-cooled chillers
  • Existing Johnson Controls Metasys BAS
  • Initial focus on adaptive condenser-water reset
  • Average plant efficiency reportedly improved from 0.86 to 0.45 kW/ton
  • Estimated annual savings of approximately $243,639
  • No new field hardware
  • Results measured over an extended operating period

California State University Channel Islands

  • Approximately 1.3 million square feet across 21 buildings
  • Two JCI/York chillers totaling approximately 1,300 tons
  • Existing Automated Logic WebCTRL BAS
  • Average plant efficiency reportedly improved from approximately 1.15 to 0.60 kW/ton
  • Reported 48% efficiency improvement within 45 days
  • No hardware changes required

Results vary by plant. The 30-day trial establishes site-specific performance using the customer's actual plant operation and agreed measurement methodology. These case-study results are not a guarantee of customer outcomes.

Ideal Applications

Designed for Large Central Chilled-Water Plants

Universities and colleges
Hospitals and healthcare campuses
Resorts and entertainment complexes
Airports and transportation facilities
Large commercial campuses
Manufacturing and industrial facilities
Government and institutional campuses
Data centers and mission-critical facilities
Technical Qualification

What We Review Before Deployment

A technical discovery session determines whether the plant has the instrumentation, BAS access and control capability required for a meaningful trial.

Chiller types, capacities and operating limits
Current condenser-water reset strategy
Chilled-water and condenser-water temperatures
Reliable flow and tonnage calculations
Chiller, pump and cooling-tower energy data
Cooling-tower and pump staging
BAS communication and historical trends
Existing alarms, overrides and safeguards
Baseline and savings-verification methodology

Let Your Plant Prove the Opportunity

Begin with a technical assessment and determine whether your chilled-water plant is suitable for a 30-day no-cost Facil.ai trial. You will evaluate the opportunity using measured plant performance—not projected savings alone.