Industrial park energy monitoring is a factory's continuous measurement of its own electricity, gas and water use inside an organised industrial zone (an OSB in Türkiye), independent of the zone's billing meter. It lets the plant verify the zone's invoice, split consumption fairly between lines and tenants, and share reliable data with the zone's energy management unit.
Key takeaways
- The zone's meter answers "how much do I pay?"; the factory's own monitoring answers "why do I pay that much?". Each checks the other.
- A power analyser directly behind the billing meter lets you compare the zone's invoice with independent, time-stamped data.
- On a tenanted plot, split consumption by what each tenant's dedicated sub-meter measures, not by floor area.
- According to OSBÜK's August 2026 bulletin, its Energy Monitoring System collects data from 190 zones; 101 send real-time data via remote reading.
- Under Law No. 5627, industrial plants consuming 1,000 toe or more a year must appoint an energy manager and report consumption annually.
Why does a factory in an OSB face a different metering problem?
An organised industrial zone (Organize Sanayi Bölgesi, OSB) is a planned industrial estate run by its own directorate. A factory in a city is connected to the regional electricity distribution company and to the local gas distributor. In an OSB, things work differently: where the zone holds a distribution licence, electricity comes through the zone directorate, and in many zones gas, water and wastewater services do too.
The zone reads the meter, the readings sit in the zone's system and the invoice usually comes from the zone. The tenant company usually sees only the last link in that chain: the monthly total. Because the zone reads the meter and issues the invoice, the tenant company faces three recurring problems.
First, you have no independent data to challenge a bill, because the zone's reading is the only source. Second, if several companies or tenants share a plot, splitting one meter's total between them is guesswork. Third, when the zone's energy management unit asks for data, the plant can do little more than forward a pile of invoices.
We covered the general measurement architecture, from the incoming supply down to individual machines, in our factory energy monitoring guide. This article builds on that and focuses on what is specific to an OSB: how to work alongside the zone's meter, how to divide a shared plot and what data to exchange with the directorate.
Why does energy data matter so much in industrial zones?
OSBs account for a large slice of Türkiye's industrial electricity, and as of 2026 that consumption is also tracked at zone level:
According to the Union of Organised Industrial Zones' (OSBÜK) OSB Electricity Consumption Statistics Bulletin (August 2026), the OSBÜK Energy Monitoring System collects data from 190 organised industrial zones: 101 send real-time data through remote reading and 89 send daily data. Together they represent 92% of the electricity consumed by all operating zones.
OSBÜK's same bulletin shows monthly consumption in the monitored zones ranging from 3.2 to 4.3 million MWh in 2025, about 46.3 million MWh for the year. In August 2026, 41.11% of the electricity consumed in the monitored zones was used in just ten of them. In other words, more than half of the monitored zones collect real-time data at zone level, yet it is still common for a factory inside the zone to follow its own consumption only through the monthly invoice.
Regulation also gives the zone a formal role. Türkiye's Energy Efficiency Law No. 5627 requires OSBs to set up an energy management unit serving plants that consume less than 1,000 tonnes of oil equivalent (toe) a year. Industrial plants consuming 1,000 toe or more a year must appoint an energy manager and submit the requested consumption data to the Ministry of Energy and Natural Resources by the end of March each year. Our article on energy efficiency obligations in Türkiye sets out who owes what.
The global trend shows why measurement matters. The International Energy Agency's (IEA) Energy Efficiency 2025 report notes that global energy efficiency improvement has averaged only 1.3% a year since 2019, against the COP28 goal of 4% a year to 2030. Closing that gap starts with knowing where energy is actually used.
The zone's meter versus your own: who sees what?
A factory in an OSB has two layers of measurement. One is the zone's billing meter; the other is the check meters and sub-meters the factory installs itself. Neither replaces the other; each is a check on the other.
| Question | Zone billing meter | Factory's own monitoring |
|---|---|---|
| What is the invoice based on? | This is the official source | Independent data for checks and disputes |
| Which line or machine used the energy? | Cannot tell; shows the plot total | Shows it by panel and machine |
| How much did the tenant next door use? | Cannot tell | Separated with a tenant sub-meter |
| How is the reactive ratio trending this month? | Visible on the month-end bill | Tracked live, with alerts before the limit |
| Where do gas and water go? | One meter, plot total | Tracked by boiler, furnace and process |
| What goes to the zone's energy unit? | Monthly total | Energy per unit of output, with trends |
There will always be a small gap between a check meter and the billing meter, because meter classes, reading times and transformer losses differ. What matters is that the gap stays in the same band month after month. If it suddenly widens, either one of the meters is faulty or a new, unmeasured load has come online.
Put simply, the zone's meter answers "how much do I pay?" and your own monitoring answers "why do I pay that much?". The rules on the official meter side, including smart meters and remote reading, are covered in our piece on the automatic meter reading obligation in Türkiye.
How to set up industrial park energy monitoring in seven steps
- Find out what the zone already records. Ask the directorate whether your meter is read remotely, at what interval it logs and whether they can share load profile data. That becomes the reference you compare your own measurements against.
- Install a check meter directly behind the billing meter. A power analyser on the incoming supply logs active and reactive energy, power factor and demand. If the month-end difference between the two readings is within a reasonable margin, you have confirmed the bill with your own data; if not, you have time-stamped evidence to take to the zone. A check meter does not replace the official meter: formal disputes, such as a meter test, follow the zone's procedures and the applicable regulations.
- Sub-meter shared or tenanted plots. If a warehouse, workshop or second company shares the plot, give each a dedicated sub-meter. Allocating costs by measured use rather than floor area removes most arguments. Set out in the lease how energy costs are passed on to the tenant, and confirm beforehand that the arrangement fits the zone's rules.
- Bring gas and water into scope. In an OSB, gas and water often come from the zone directorate as well. One measurement point each for the boiler, furnaces and process water extends the visibility you have on electricity to the other utilities.
- Match communications to the size of the plot. Panels in the same building can be read over the wired Modbus protocol; outlying buildings, treatment units or water tanks suit wireless links. Our LoRa vs NB-IoT vs cellular comparison sets out the selection criteria.
- Combine energy with production data. Total use rises with output; kWh per unit or per tonne shows real efficiency. This metric underpins discussions with the zone's energy unit and any ISO 50001 energy management system.
- Make the reporting shareable. Put monthly use, energy per unit, reactive ratio and completed improvements into a one-page report. The annual March declaration (if it applies to you), zone data requests and customer audits can then all draw on the same source.
The first findings of energy monitoring in OSB factories are usually familiar: equipment running with no production, leaks in the compressor room and failed power factor correction steps. We cover the correction side in our article on the reactive power penalty and leaks in our guide to compressed air leak detection.
From the zone directorate's side: monitoring tenants
Industrial park energy monitoring also has a zone directorate side. The zone already reads its tenants' consumption, but that data often serves billing alone. The same readings could flag unusual jumps in consumption, tenants whose reactive ratio is creeping towards the limit and the zone's hourly load profile.
For a zone with an energy management unit, analysing tenant data means offering tenants tailored reports and prioritising efficiency work where it matters most. Forecasting the zone's future demand from aggregated load data is possible with the methods described in our article on electricity load forecasting.
A second life for energy data: carbon and exports
Many OSB factories export, and their customers increasingly ask for emissions data. Electricity and gas use are direct inputs to Scope 1 and Scope 2 calculations. A factory with measured, time-stamped consumption data answers those requests from records rather than estimates; our guide to Scope 1, 2 and 3 emissions explains the calculation.
How does Digital Bridge set up energy monitoring in an industrial zone?
Because Digital Bridge provides software and hardware from the same team, we build the whole chain, from the zone's meter to the management dashboard, as a single point of contact:
- Discovery and needs analysis. We survey the plot on site and map the zone's billing meter, existing panels, tenant structure and gas and water intakes. The Industry 4.0 site assessment is free, and it ends with a written proposal covering scope, phases and cost.
- Pilot. We start with the incoming check meter and the few largest consumers. Our energy monitoring and management solution places analysers and meters on site, collects the data on a central platform and matches it with production data; in the first billing period, the results are compared with the zone's figure.
- Scattered points. For remote meters and tenant sub-meters across the plot, we use our OSOS remote meter reading infrastructure. If no off-the-shelf device fits, our device manufacturing and IoT team designs the board, enclosure and firmware; the hardware feasibility study is free.
- Integration. We take process data from SCADA and HMI or MES to calculate energy per unit, and expose consumption, cost and alarm screens to management, and where needed the zone's energy unit, through a BI dashboard.
Our approach for zone directorates, multi-plot operators and utilities is summarised on our energy and utilities solutions page. SMEs that want to see the order of the wider journey can start with our Industry 4.0 roadmap for SMEs.
Your next step
Open the last twelve months of zone invoices and divide each month's consumption by that month's output. If the figure swings widely, you see reactive charges, or you share the plot with another company, something is going unmeasured. Get in touch through our contact page and we will use the site assessment to agree your first measurement points and the data to request from the zone.
To see how energy data connects with production, maintenance and quality, browse all of our Industry 4.0 articles.