E means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. E Electrolux ERD6DE18C, 310 L, SN-ST, 32 dB, E Electrolux ERD6DE18C. Fridge net capacity: 310 L, Climate class: SN-ST, Noise level: 32 dB. Fridge number of shelves/baskets: 5, Number of vegetable drawers: 2, Door hinge: Right. Annual energy consumption: 114 kWh, Energy efficiency class: E