Aqueduct for dairy farms and collection networks
The parlour, the plate cooler, the bulk tank and the hot water system are where a dairy farm spends its energy and water. Aqueduct meters them, across one farm or a whole collection network, and catches a failing cooler before the milk is rejected.
Short answer
On a dairy farm, three loads dominate electricity: milk cooling, water heating for parlour cleaning, and the vacuum pump. The plate cooler sits upstream of the refrigeration and determines how much work it has to do, which makes it the highest leverage asset on the site. Aqueduct meters those loads plus water and milk temperature, over cellular or LoRaWAN where there is no fixed connectivity, across one farm or a whole collection network.
This is a different problem from a dairy processing plant, which is why it is a separate page. A farm has no engineering team, often no reliable connectivity, and a single failure mode that dwarfs all the others: milk that cannot be sold. Monitoring has to earn its place against that, not against a utility bill.
The problem
Energy efficiency on a dairy farm is real and worth having. But the reason to instrument a parlour is that a failing cooling chain is discovered at reception, after the collection, when the milk is already unsaleable and a day of production from the farm is gone.
01
A refrigeration unit losing performance still cools, just more slowly and less far. The milk may sit above target for hours without anyone present to see it, and the temperature at the moment of collection may look acceptable.
What it costsA rejected collection is a full day of production from that farm, plus the energy already spent cooling it.
02
A plate cooler uses cold water to drop milk temperature before it reaches the refrigeration system. When flow, water temperature or the heat exchanger surface degrade, the refrigeration silently takes the extra load.
What it costsRefrigeration runs longer and harder for the same result, permanently, and nothing indicates why.
03
Parlour cleaning needs hot water on a schedule tied to milking. Heating is often on a simple timer with no relationship to tariff periods or to whether the water is actually needed.
What it costsA significant thermal load run at the most expensive time of day for no operational reason.
04
Many parlours run fixed speed vacuum pumps continuously through milking regardless of demand, where variable speed control against measured vacuum is well established.
What it costsA continuous motor load sized for peak, run at peak throughout.
05
For a processor or cooperative drawing from hundreds of farms, the question is which sites are at risk and which are inefficient. Without telemetry there is no ranking, so field engineering attention is allocated by complaint.
What it costsSupport goes to the loudest farm rather than the one about to fail.
06
Farms rarely have reliable fixed internet, an IT function or anyone to maintain a system. Any solution that assumes those things does not survive contact with the site.
What it costsMost monitoring projects at farm level fail on this, not on the sensing.
What gets measured
| Asset | Why it matters | What is measured | What it catches |
|---|---|---|---|
| Bulk tank refrigeration | The rejection risk sits here | Compressor power, run hours, milk temperature profile | Slow performance loss, and excursions between manual checks |
| Plate cooler | Determines the refrigeration load | Water flow and temperature, milk temperature in and out | Fouling, low flow and rising pre cool temperature, before refrigeration absorbs it |
| Water heating | Large scheduled thermal load | Power and run time against tariff period | Heating at expensive times for no operational reason |
| Vacuum pump | Continuous motor load | Power, run hours, vacuum level | Fixed speed operation where variable speed would follow demand |
| Parlour wash water | Largest water use in the parlour | Flow per wash cycle | Over washing, passing valves and hoses left running |
| Herd drinking water | Largest water use on the farm | Flow to troughs | Trough overflow and underground leaks, which are otherwise invisible |
| Effluent and slurry | Regulated, and increasingly reported | Volumes handled and applied | Storage headroom and an evidenced record for compliance |
| Supply availability | Rural power is intermittent | Outage frequency and duration | The case for backup, and the explanation for a temperature excursion |
The solution
Cold chain
The primary job, and the business case.
Energy
The three loads that matter, separated.
Water
Two very different draws.
Network
Hundreds of sites, one view.
Compliance
Farm level regulation is driven mainly by effluent, nutrient management and water abstraction, and increasingly by the disclosure obligations of the processors and retailers buying the milk, which flow down the supply chain as data requests.
| Market | Primary instrument | What it measures | The operational consequence |
|---|---|---|---|
| United States | ASHRAE 90.1, ENERGY STAR benchmarking, city building performance standards | Design compliance, then annual measured benchmarking | Disclosure is becoming performance improvement with penalties attached |
| Canada | NECB 2020, NRCan national benchmarking | Design compliance for buildings 600 m2 or 4 storeys and above, plus measured benchmarking | Benchmarking against a national dataset needs complete, attributable meter data |
| United Kingdom | MEES, ESOS, SECR | Asset EPC rating, organisational energy assessment, disclosed consumption and actions | EPC B for commercial above 1,000 m2 from 2031, and ESOS progress reporting to 2027 |
| Middle East | Al Sa'fat, Estidama Pearl, DSM strategy | Green building compliance at permit, increasingly questioned in operation | Al Sa'fat Silver mandatory for new Dubai permits from 2026, 30 percent demand cut by 2030 |
| India | ECBC, BRSR Core, CCTS | Code compliance above 100 kW connected load, then assured intensity metrics | Assurance providers trace each number to source, so estimates no longer survive |
| Australia | NABERS, Commercial Building Disclosure, NCC Section J | Measured operational performance, publicly disclosed | The rating comes from your meter data and is visible to the market |
Summarised for orientation, not as legal advice. Requirements vary by state, emirate, province and municipality, and by building type and size. Confirm the operative requirement for your own assets.
United States
Energy codes, local building performance standards and sector specific ventilation rules.
Canada
A national energy code plus the first nationally standardised benchmarking system.
United Kingdom
Three separate schemes, and a hard minimum standard arriving in 2031.
Middle East
Green building systems that are mandatory at permit, plus national net zero pathways.
India
A building energy code, assured ESG disclosure and a live carbon market.
Australia
A measured performance rating with mandatory disclosure, which is unusually strict.
Proof
Dairy, Andhra Pradesh
Process water, cleaning circuits, refrigeration and thermal balance instrumented across the operation, with the collection network treated as sites in the same portfolio as the plant.
Global water stewardship
One real time water intelligence layer across the estate, with same day leak and anomaly detection replacing bill cycle discovery, and auditable data behind reduce, reuse and replenish reporting.
Aviation, United States
Roughly 5,000 meter points instrumented across a 24/7 campus. A 9,000 gallon per day anomaly surfaced within 72 hours of go live, a find manual reads would have missed for months.
The platform record
Hardware agnostic across 130 plus device types and any protocol, reading BACnet, Modbus, MQTT, OPC UA and vendor APIs. AWS Advanced Tier Services Partner with SOC 2 aligned security.
Questions
Three loads dominate: milk cooling, water heating for parlour cleaning, and the vacuum pump. Lighting and other loads are comparatively minor.
Because those three are the whole picture, metering them individually rather than taking a farm total is what makes improvement possible at all.
Because it sits upstream of the refrigeration and determines how much work the refrigeration has to do. Milk arriving at the bulk tank warmer than it should be means the compressor runs longer for the same outcome.
A plate cooler degrades quietly through fouling, low water flow or rising water temperature, and the only symptom is that refrigeration works harder. Measuring it directly catches the cause rather than the consequence.
Over cellular or LoRaWAN rather than fixed connectivity, with local buffering so a coverage gap delays data rather than losing it. Coverage is confirmed during the survey before any commitment.
Nothing on the farm requires an IT function or on site maintenance, which is the constraint that defeats most farm level monitoring projects.
Yes, and that is where the value concentrates. Because parlours repeat, instrumentation becomes a standard kit rather than a bespoke design per site, so the cost per farm falls sharply after the first.
Each farm appears in one portfolio ranked on cooling performance and energy per litre, with missing data flagged until a site is online.
Energy savings on cooling, water heating and vacuum are real and measurable. But the case usually rests on rejection avoidance, because a rejected collection is a full day of production from that farm plus the energy already spent cooling it.
One avoided rejection per farm per year across a large network typically covers the programme, and the energy saving is upside.
Next step
Because farms repeat, the first deployment becomes a template. Prove it on a representative site and the rollout is a kit rather than a project.