Energy Efficiency for Businesses: Start by Measuring

Who is this guide for?

This guide is for business owners and managers whose energy bills are rising but who cannot clearly see where the increase is coming from. It answers one question: before investing in energy efficiency, how should you measure consumption and which data should you collect? This is also the first and decisive step of any energy efficiency consultancy process for businesses; a cost that is not measured cannot be managed.

Why is measurement the first step in energy efficiency, and who does it concern?

Measurement shows where, when and for what purpose energy is used in a business; without that visibility, every improvement rests on guesswork. The total bill only shows the outcome, not the cause. A business that does not know how much energy each piece of equipment draws, at what times and at what level of production or occupancy, runs the risk of investing in the wrong place.

The topic particularly concerns businesses where energy makes up a significant share of total costs: hotels, food and agricultural processing facilities, cold storage depots, greenhouses, manufacturing plants, hospitals and large office buildings. Energy efficiency legislation in force may also impose additional obligations, such as appointing an energy manager, on businesses whose consumption exceeds a certain level. You should check whether you fall within scope against current legislation; the relevant texts are available on Mevzuat Bilgi Sistemi (Turkey's official legislation database).

Energy data is not only a cost issue either. Electricity, natural gas and fuel consumption are core inputs to a corporate carbon footprint calculation. A business that measures its energy regularly therefore also builds a solid data foundation for corporate carbon footprint consultancy and sustainability reporting.

How do you measure energy consumption step by step?

The measurement process starts with a review of existing bills and continues by breaking consumption down to equipment and process level. The steps below provide a framework that can be adapted to businesses of different sizes.

1. Build a baseline table from your existing bills

Collect past electricity, natural gas, LPG, diesel and, where relevant, water bills in a single table. For each month, record the quantity consumed and the amount paid in separate columns; looking only at the amount can lead you to mistake a unit price change for a rise in consumption. This table becomes the reference point for every later comparison.

2. Link consumption to activity data

Energy consumption means little on its own; it should be assessed alongside activity data such as production volume, number of guests, quantity of product processed or operating hours. Consumption per unit, for example energy per product made or per guest night, evens out seasonal and capacity differences. That way, when one month's bill comes in high, you can tell whether it is down to more business or to inefficiency.

3. Identify the major consumers

List the equipment on site and note each item's power rating, operating hours and pattern of use. Air conditioning, refrigeration, compressed air, pumps, boilers, ovens and lighting are usually the first groups to examine. This list also forms the basis for deciding where sub-meters should go.

4. Plan sub-meters and measurement points

The main meter shows the whole site; to see what each area uses, you need sub-meters or temporary measurements with portable devices. You do not need a meter at every point; prioritise the major consumers and processes that vary. Decide the measurement frequency from the outset too: monthly readings show trends, while hourly or daily data reveals idle running and night-time consumption.

5. Report the data regularly and assign responsibility

Data that is not reviewed regularly by a named person quickly becomes useless. Prepare a simple monthly report template: total consumption, consumption per unit, comparison with the previous period and any notable deviations. Once this routine is in place, the effect of improvement measures can be tracked in the same table.

6. Prioritise measures based on the data

The measurement results determine which measure to tackle first. Some improvements need no investment, such as adjusting operating hours, switching off idle equipment, fixing compressed air leaks or reviewing set points. Investment measures such as replacing equipment should be assessed with a payback calculation based on measured current consumption.

What information should be prepared before measurement starts?

A sound energy analysis first requires bringing together the data the business already holds. The list below can be used as a checklist when preparing for an initial meeting or an internal review:

• Past electricity, natural gas, fuel and water bills

• A list of meters and the area each meter supplies

• An inventory of main equipment: power ratings, age and operating hours

• Monthly activity data such as production, occupancy or sales

• Working calendar, shift pattern and seasonal periods

• Maintenance records and recent equipment changes

• Any previous energy survey, internal audit or analysis reports

• Data on your own generation, such as rooftop solar, if any

• Details of the person or team responsible for energy

What are the common mistakes in energy efficiency work?

A common mistake is moving straight to equipment investment without measuring first. Buying a new device may look like a concrete step, but the real losses may lie in usage habits or settings. In that case the investment does not deliver the expected result and confidence in later recommendations falls.

Other points to watch are:

• Tracking only the bill amount: when the unit price changes, the amount rises or falls regardless of consumption.

• Ignoring activity data: comparing a busy-season month directly with a quiet month gives misleading results.

• Relying on a one-off measurement: a single day's reading does not show weekly or seasonal variation.

• Overlooking night-time and weekend consumption: consumption that continues while the business is closed is one of the areas where easy gains may be found.

• Leaving responsibility unclear: if it is not settled who collects and reviews the data, the work stalls after a while.

• Not verifying the effect of a measure: without measurement after implementation, there is no way to know whether the saving has been achieved.

Notes for businesses in Antalya

In Antalya, energy consumption shows marked seasonal swings because of the tourism season and the climate. For businesses in the region, tracking consumption per unit based on activity data, rather than the monthly total, is therefore particularly important.

In hotels, air conditioning, hot water production, pool systems, kitchens and laundries are priority areas in the measurement plan. Partly shutting down areas and equipment when occupancy is low can only be planned with confidence once the relationship between occupancy and consumption has been measured. In hotels, energy and water use are closely linked, so hot water and pool systems are best addressed with both in mind.

In greenhouses, cold storage depots and agricultural packing facilities, heating, cooling and pumping are the main consumption items, and harvest and storage periods should be assessed separately. In manufacturing plants in industrial zones, compressed air, electric motors and process heat stand out. For producers exporting CBAM-covered goods to the European Union, energy data is also an input to product-level emissions calculations.

Frequently Asked Questions

Do we have to install meters to start energy efficiency work?

Not at the start; an initial analysis can be carried out with existing bills and main meter data. To see how much each area consumes, however, you will in time need sub-meters or temporary measurements with portable devices. Meter investment can be planned in stages, starting with the major consumers.

Does a small business need energy efficiency consultancy?

Energy is a controllable cost for small businesses too. Basic steps such as analysing bills, listing equipment and reviewing usage habits do not require major investment. Energy efficiency consultancy for businesses helps ensure these steps are taken in the right order and in a measurable way.

How are energy efficiency and carbon footprint related?

Electricity and fuel consumption are among the main sources of a corporate carbon footprint. A business that measures and reduces its consumption can track both its costs and its emissions with the same data. When energy data is kept regularly, the carbon footprint calculation also becomes more reliable.

How can we tell whether energy-saving measures are working?

By comparing consumption before and after the measure at the same level of activity. For example, looking at consumption per guest night in a hotel or per product in manufacturing filters out seasonal and capacity differences. The comparison requires collecting data over a sufficient period and using the same measurement method.

Conclusion

The reliable way to cut energy costs is to measure consumption, link it to activity data and choose measures based on that data. In energy efficiency consultancy for businesses, the outcome also depends on how consistently measurement is carried out. Get in touch with us to organise your energy data and set your priorities; we will map out the way forward together.

Written by Okan Nas, Environmental Engineer, Asel Çevre Danışmanlık.