Old (12 to 15 years), basic, upright freezer, replaced this week - the measured consumption during winter, freezer located in the quite cool pantry...
It worked out at around 0.850Kwh per day, as averaged over 45 days use. I suspect that consumption figure would be much higher, in the warmer weather.
New basic, upright, of similar size, after allowing time to settle before taking any measurements, over a much shorter period and in summer. It recorded 0.750Kwh per 24 hours. Big differences between design of old and new - it is a frost free type, periodically it runs a defrost heater cycle, and the drawers shelves are enclosed at the bottom. Cooling air is blown by a fan, with all pipework enclosed at the interior/back.
Call that a saving of 0.1 to 0.400Kwh per day in consumption, assume 0.200Kwh average over a year. At current electricity prices, 30p per Kwh, that saves 6p per day, or £21.9 per year. New freezer cost £350, so 16 years to pay for itself.
It worked out at around 0.850Kwh per day, as averaged over 45 days use. I suspect that consumption figure would be much higher, in the warmer weather.
New basic, upright, of similar size, after allowing time to settle before taking any measurements, over a much shorter period and in summer. It recorded 0.750Kwh per 24 hours. Big differences between design of old and new - it is a frost free type, periodically it runs a defrost heater cycle, and the drawers shelves are enclosed at the bottom. Cooling air is blown by a fan, with all pipework enclosed at the interior/back.
Call that a saving of 0.1 to 0.400Kwh per day in consumption, assume 0.200Kwh average over a year. At current electricity prices, 30p per Kwh, that saves 6p per day, or £21.9 per year. New freezer cost £350, so 16 years to pay for itself.