An SME sustainability data pack should answer real business questions

The content should follow the questions actually asked. Across most requests four categories recur: energy, water, waste and activity data.

Energy is typically the most requested and the most available, since it is invoiced. The useful form is consumption by site and by period, with the fuel or energy carrier identified, so that it can be converted consistently later.

Water is often requested alongside energy, particularly for water-intensive processes. Where a site both draws and discharges water, both figures are needed, and the difference between them is not automatically consumption — it depends on process losses and on what happens on site.

Waste is requested in categories, and the categories differ between requesting parties. Holding waste data at a level of detail that allows resorting, rather than in pre-aggregated form, avoids re-cutting the same data repeatedly.

Activity data is the denominator that makes the rest meaningful. It might be production tonnage, units, floor area or revenue. Without a consistent activity measure, intensity figures cannot be produced, and intensity is what most requests actually want.

A data pack decays without owners. Each data stream needs a named individual accountable for its accuracy and for flagging changes — a new meter, a closed line, a different waste contractor. Where ownership is shared, it is usually absent.

Evidence references make the pack auditable. Recording which invoice, meter reading or waste transfer note a figure came from turns a number into a defensible one, and makes verification a matter of checking rather than re-deriving.

The estimation log is the element most often omitted, and the one that most improves quality. Where a figure is estimated rather than measured, recording the method, the reason and the date allows the business to distinguish measured data from estimates later — and to prioritise replacing the estimates that matter most. An unlogged estimate becomes indistinguishable from a measurement the moment it is copied into a customer response.

The European reporting landscape changed materially in 2026. The Council gave final approval on 24 February 2026 to simplification of sustainability reporting and due diligence requirements, with the headline scope reported as companies exceeding both 1,000 employees and €450 million in net annual turnover. [L] A full assessment requires reading the legal text, the applicable entity circumstances and national transposition rather than the headline alone.

For an SME, the practical implication is not that nothing is required. It is that thresholds and scope described in earlier material should not be repeated as current. Where a customer's request cites a threshold, the appropriate response is to note the change and to check the current position rather than to rely on a figure from a previous cycle.

This is also why the data pack is worth building regardless of the legal position. Most requests an SME receives come from customers and banks exercising their own requirements, not from a regulator. The pack answers those whether or not the SME itself is in scope of anything.