energy efficiency class
The product's EU energy-label grade (A–G) — a token from EnergyEfficiencyClasses. A compliance fact carried by energy-labelled products (fridges, dishwashers, washers, TVs, light sources); modelled as an orthogonal compliance property, not a kind-defining slot, so a product outside any label scheme (a hob, a phone) simply leaves it empty. Optional.
Energy efficiency class is answered with one word chosen from the energy efficiency classes list — the same word shared across every product that uses it.
It belongs to compliance — where it is from and what it meets.
asked by the kinds that answer it
48 kinds answer it, each for a single value. The same question can be reused by unrelated kinds — one meaning, many homes.
asked by kinds that answer it
The same question can be reused by unrelated kinds — one meaning, many homes.
| kind | how many |
|---|---|
| powered product | one |