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Thousands of sites, almost all of them on diesel.

A tower portfolio is a distributed generation estate. The reporting problem is not complexity — it is collecting fuel data from several thousand locations on a schedule.
Dominant source

Site diesel generation

Sites

Thousands, distributed

Key question

Who reports shared sites

Data source

Fuel delivery records

7 min read

The estate is the footprint

A Nigerian mobile network is, from an emissions perspective, a diesel generation business with a telecommunications application. The radio equipment consumes a modest and well-understood amount of power; the emissions come from how that power is produced, and across much of the estate it is produced on site by a generator because grid supply is unavailable or unreliable.

Head office, retail stores and the corporate fleet are rounding errors against it. If you get the site fuel right, you have your footprint. If you do not, nothing else you measure matters.

That makes this a logistics problem rather than a measurement problem. The emission factor is not in dispute. What is in dispute is how many litres actually went into how many generators at how many sites in a given month, and who has that record.

Where the fuel data actually lives

In our experience the data exists — it is just held by people who were never asked for it in this form.

  • Fuel supplier delivery recordsYour diesel supplier knows exactly how much was delivered to each site and when. This is usually the single best dataset available and the most under-used, because nobody has asked for it as a monthly export.
  • Field maintenance logsTechnicians record fuel top-ups during site visits. Patchy on its own, valuable as a cross-check against supplier records.
  • Remote monitoring systemsMany sites have monitoring for security and uptime that also captures generator run hours and sometimes fuel level. Run hours plus a specific fuel consumption gives a defensible estimate where direct measurement is absent.
  • Managed service provider reportingWhere site operations are outsourced, the provider holds the data. Getting it into your contract at renewal is far easier than extracting it afterwards.
  • Finance recordsFuel spend by site is in the ledger. Spend divided by price gives volume — a rough cross-check that catches large errors quickly.

Shared sites: settle who reports before you measure

Network versus corporate footprint

It is worth separating the two from the start, because they behave differently and are read differently.

The network footprint scales with coverage and traffic. It falls when you improve site energy efficiency, hybridise with solar, or connect a site to grid supply — and it rises when you expand. Reported on its own, it tells a coverage story as much as an efficiency one.

The corporate footprint — offices, stores, fleet, travel — is small, controllable, and the part your staff can see. It is not where the emissions are, but it is where a great deal of internal engagement happens.

Report both, and report network emissions per subscriber or per terabyte alongside the absolute figure. Otherwise network expansion looks like environmental deterioration, which is neither fair nor useful.

Getting site data under control

  1. Get the supplier exportOne conversation with your fuel supplier for a monthly delivery report by site. This is the highest-value hour in the entire project.
  2. Reconcile against spendVolume from deliveries against fuel spend in the ledger. Large gaps point at either a data problem or a loss problem, and both are worth knowing about.
  3. Fill gaps with run hoursFor sites without delivery data, run hours from monitoring plus a specific fuel consumption figure, labelled as estimated.
  4. Fix it in contractsAdd monthly fuel reporting to managed service and tower agreements at renewal, so next year is an export rather than a project.

Questions

We hybridised many sites with solar. How does that show?

As reduced diesel consumption, which is exactly right — solar generation itself produces no operational emissions to report. The improvement shows up as a fall in Scope 1 and in emissions per site. It is one of the few interventions in this sector that is both commercially obvious and visible in the disclosure.

What about grid-connected sites?

Grid consumption is Scope 2 and generator fuel at the same site is Scope 1. Many sites are both, hour by hour, so you need consumption from the DisCo bill and fuel from delivery records for the same period. This is the same grid-versus-generation split that affects every Nigerian sector.

Are handsets our Scope 3?

If you sell them, yes — purchased goods and services upstream, and use of sold products downstream. For most operators handset-related emissions are material enough to warrant a screening assessment even if they are estimated in the first cycle.

Check this yourself

A summary of a regulation is not the regulation. These are the primary documents this page is based on.

The Greenhouse Gas Protocol Corporate StandardWorld Resources Institute and WBCSDConsolidation approaches, which decide the shared-site question.
Nigerian Communications CommissionNCCSector statistics and infrastructure reporting.
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