Fair cooling costs across four Jumeirah properties.
The Jumeirah Group faced a complex challenge in Dubai: fairly allocating the cost of a single centralised chilled-water plant across four luxury properties, including the Burj Al Arab. Augos deployed BTU thermal-energy metering and real-time calculation to allocate cost by each property's actual, verified off-take, minute by minute, accounting for the plant's variable efficiency. The result was transparent, defensible billing that has held for over a decade.
- Four luxury properties share one centralised chilled-water plant.
- Fluctuating efficiency made traditional cost splits inaccurate.
- BTU metering measures each property's real thermal-energy off-take.
- Cost is allocated minute by minute, fairly and defensibly, for over a decade.
The challenge of shared central plants
At the iconic Jumeirah complex, four properties, including the Burj Al Arab and Wild Wadi Water Park, rely on a single centralised chilled-water system. The core problem was how to fairly allocate the significant operating cost of that central plant across properties sharing the infrastructure.
Traditional methods failed because the system's efficiency and thermal-energy consumption were non-linear, fluctuating constantly with the number of chillers and pumps running, changes in ambient temperature and humidity, and each property's dynamic cooling demand. Inaccurate allocation complicated financial reconciliation and blunted each property's incentive to manage its own demand.
Precision thermal energy measurement (BTU)
To solve it, Augos deployed a tailored solution:
- BTU metering: Augos Pulse Sensors were placed at each property's entry and exit points, measuring flow rate and temperature difference (Delta T) to calculate the thermal energy consumed.
- Dynamic computation: the platform used this real-time data to determine the actual energy input, assess the plant's efficiency (Coefficient of Performance), and calculate the minute-by-minute kWh per BTU.
- Fair allocation: cost was then allocated by each property's actual, verifiable off-take, giving precision and transparency to the group's financial controllers.
Calculating and verifying minute-by-minute kWh per BTU, while accounting for a variable Coefficient of Performance, is the gold standard for thermal-energy cost allocation. It ties cost defensibly to true usage, which matters just as much for South African mixed-use developments and business parks on district cooling.
Outcome: long-term value and transparency
The solution delivered transparent, minute-by-minute cost distribution that accounts for the plant's variable efficiency, establishing financial fairness across the portfolio. More than a decade on, it continues to give each property a defensible, usage-based share of the cost and a real incentive to manage its own cooling demand.
What was the challenge for the Jumeirah Group?
Four luxury properties, including the Burj Al Arab and Wild Wadi Water Park, rely on a single centralised chilled-water plant. The difficulty was fairly allocating that plant's significant operating cost across properties sharing the infrastructure.
Why do traditional cost-split methods fail here?
Because the plant's efficiency and thermal-energy consumption are non-linear and constantly fluctuate with the number of chillers and pumps running, the ambient conditions, and each property's changing cooling demand.
How does BTU metering solve it?
Augos Pulse Sensors read BTU values at each property's entry and exit points, measuring flow rate and temperature difference (Delta T) to calculate the thermal energy each property actually consumes.
How is the cost then allocated fairly?
The platform performs dynamic, minute-by-minute calculations of the energy input and system efficiency (a variable Coefficient of Performance), then allocates cost by each property's actual, verifiable off-take.
Does this approach apply in South Africa?
Yes. The same method suits shared central plants in South African mixed-use developments and business parks using district cooling or heating, giving defensible, usage-based cost allocation.
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