Lack of understanding of energy consumption of home appliances in U.K.


Chris Saunders,
CEO, Navetas
Energy Management
Ipswich, U.K. — (METERING.COM) — January 24, 2012 – Consumer misconceptions over the appliances making the biggest impact on their electricity bill could be causing households to focus energy efficiency measures in the wrong place, according to the energy technology provider Navetas.

According to the results of Navetas’ online Energy Challenge, U.K. consumers show a clear lack of understanding of the impact of household behavior on energy consumption, significantly under-estimating the impact of using some appliances.

Developed as an educational aid for schools, the Energy Challenge tests users to correctly order a range of home appliances, based on typical weekly usage habits.

Using Navetas’ energy disaggregation technology, the energy usage of 26 appliances has been measured and calculated. The data, applied to typical household usage scenarios, demonstrates that appliances used on a daily basis for a short time, like the hair dryer, kettle and electric shower, could be doing more to drive up energy bills than energy hungry appliances used just once or twice a week, such as the tumble dryer or washing machine.

The weekly consumptions of selected appliances are:

  • Vacuuming for 90 minutes – 1.95 kWh
  • Washing machine four times – 2.24 kWh
  • Tumble dryer two times (30 minutes per time) – 2.5 kWh
  • Drying hair for 10 minutes a day – 2.56 kWh
  • Ironing for two and a half hours – 3 kWh
  • Kettle boiled three times a day – 5.25 kWh
  • Electric shower for five minutes a day – 5.83 kWh
  • Fridge/freezer (always on) – 7.82 kWh
  • Dishwasher used daily – 10.08 kWh
  • Electric oven for one hour per day – 13.65 kWh

“Our study has revealed that many consumers could be jumping to the wrong conclusion about how much it is costing them to use certain appliances and not taking into account household behavior,” commented Chris Saunders, CEO at Navetas Energy Management. “Energy users are faced with electricity bills that present a total usage figure and cost, with absolutely no insight into how this breaks down at an appliance level.”

Consumers need clarity and understanding over their energy usage, continued Saunders, adding that the U.K.’s smart meter rollout offers an ideal opportunity for energy providers to deliver these insights.