D 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. D Haier HSR5918DIMP, 511 L, No Frost (fridge), ST, 10 kg/24h, D, Platinum, Stainless steel Haier HSR5918DIMP. Total net capacity: 511 L. Door hinge: Left/right, Display type: LED. Climate class: ST, Noise level: 40 dB. Fridge net capacity: 333 L, No Frost (fridge), Multi-Airflow system (fridge), Fridge interior light. Freezer net capacity: 178 L, Freezing capacity: 10 kg/24h, No Frost (freezer). Energy efficiency class: D, Annual energy consumption: 253 kWh. Product colour: Platinum, Stainless steel