The present data refer to cooking in ovens and stoves in private homes in Denmark. The technology of equipment and method of cooking is mixed and described briefly below. Data collection and treatmentDanish
consumer organisations and electricity suppliers measure
and publish information about electricity
consumption of various types of cooking. The data
below are derived partly from
Forbrugerstyrelsen
and the two electricity suppliers
NESA and
NVE. Technical scope
Electricity consumption for the cooking process is included. Saving of house
heating during winter time due to
excess heat production
has not been
taken into account. Loss of heat due to
ventilation during cooking has not been included. RepresentativityElectricity
consumption for the cooking processes is determined
by three main factors: the practice of the
cook, the applied technology, the condition
of the equipment, and the electricity consumption can vary a lot depending
on the actual conditions. The present data do only represent a
small selection of cooking processes and equipment and do only provide
an order of magnitude. A comprehensive collection of printed recipes with
associated electricity consumption data is available from
NVE. Electricity consumption
|
Food preparation process |
Quantity |
Electricity
consumption |
Source |
Boiling |
|
|
|
Water (pot and electric stove) |
1 kg |
0.18 |
1 |
Water (electric kettle) |
1 kg |
0.12 |
1 |
Vegetables (pot and electric stove) |
1 kg |
0.12.–0.22 |
1 |
Pasta (pot and electric stove) |
250 g |
0.24-0.50 |
1 |
Rice (pot and electric stove) |
4 dl (before cooking) |
0.24-0.5 |
1 |
Frozen beans (microwave oven) |
500 g frozen beans + two spoons of water |
0.25 |
3 |
Frozen beans (pot and electric stove) |
500 g frozen beans + 200 ml of water |
0.15 |
3 |
Fresh carrots (microwave oven) | 350 g carrots + two spoons of water | 0.20 | 3 |
Baking |
|
|
|
Pita bread: 225C, 20 min. |
- |
0.10 |
1 |
Bread (2000C, 25 min.) |
16 buns |
0.15 |
1 |
Bread (200-2200C, 20 minutes) |
24 buns |
0.36-0.54 |
2 |
Pizza: (2000C, 40 min.) |
one |
0.40 |
1 |
Cake (1700C, 60 min.) |
3450 g dough |
0.70-1.1 |
2 |
Heating conventional oven to 2000C |
- |
0.5 |
2 |
Heating hot-air oven to 2000C |
- |
0.3 |
2 |
Sustaining 2000C one hour in conventional oven |
- |
0.5 |
2 |
Sustaining 2000C one hour in hot-air oven |
- |
0.9 |
2 |
Baked potatoes (combined microwave and traditional oven) |
4 large potatoes |
0.75 | 3 |
Baked potatoes (microwave oven with grill) |
4 large potatoes |
0.27 |
3 |
Roasting |
|
|
|
Meat balls |
700 g |
0.008 |
1 |
Sources: 1)
Data are estimated based
on about 10.000 investigations per year in more
than one decade by school children at various types and qualities of ovens
and stoves (NESA, 2002). 2).
Data are estimated based on measurements at new equipment with hot-air and
traditional heating (Forbrugerstyrelsen, 1997).
3) Folder about microwave oven's
electricity consumption (NVE, 2001).
References
Forbrugerstyrelsen
(1997): Tekniske meddelelser – undersøgelse af
komfurer. In Danish.
NESA
(2002): NESA’s "Energy
school" and personal dialog with
Charlotte Enoch.
In Danish.
NVE (2001).
Mikrobølge- og mikrokombiovne. Temaaften i Holbæk,
Kalundborg og Svinninge, februar 2001. In Danish.