EnergyEnergy

English material for practical nurses physics course. Subject energy, time estimated 2 h

Where do we need energy in Where do we need energy in Finland?Finland?

35 % Heating our homes35 % Heating our homes 35 % Traveling35 % Traveling 20 % Home equipment20 % Home equipment 10 % Heating the water10 % Heating the water

Heating our homesHeating our homes

We have cold winters We have cold winters here in Finland and we here in Finland and we need lot of energy to need lot of energy to heat our houses. We heat our houses. We use 35 % of all energy use 35 % of all energy for heating our houses. for heating our houses. Heating costs easily Heating costs easily about 1000-2000€/year. about 1000-2000€/year. Can we make our Can we make our heating bills smaller? heating bills smaller? Here are some ideas.Here are some ideas.

If you lower your home indoor If you lower your home indoor temperature by just one degree, the temperature by just one degree, the heating bill will go down by 5 %heating bill will go down by 5 %

You don’t have to have the same You don’t have to have the same temperature in every room. In temperature in every room. In bedrooms temperature can be lower bedrooms temperature can be lower than in the bathroom. In storage rooms, than in the bathroom. In storage rooms, temperature can be just 5 – 10 degrees.temperature can be just 5 – 10 degrees.

If you are away many days, you can If you are away many days, you can turn the temperature lower. You can turn the temperature lower. You can also put ventilation lower (don’t turn it also put ventilation lower (don’t turn it off, its not allowed to do so in modern off, its not allowed to do so in modern houses)houses)

In England…In England…

In England home heating In England home heating works differently. works differently. Temperatures in houses are Temperatures in houses are much lower than in Finland. much lower than in Finland. Average temperature is Average temperature is about 15 – 18 degrees. about 15 – 18 degrees. Temperature changes are Temperature changes are also bigger than in Finland. also bigger than in Finland. In the night the temperature In the night the temperature can be about 12 degrees. It can be about 12 degrees. It sounds very low, but in sounds very low, but in England the bed and England the bed and blankets are warmer than in blankets are warmer than in Finland. You also sleep very Finland. You also sleep very well in low temperatureswell in low temperatures..

Water heatingWater heating

We use water about 100 – We use water about 100 – 150 litres a day, mostly in 150 litres a day, mostly in the toilet and shower. the toilet and shower. Water is cheap in Finland, Water is cheap in Finland, but heating water is but heating water is expensive. We use most of expensive. We use most of the warm water when we the warm water when we are in shower. If you take a are in shower. If you take a quick shower, heating the quick shower, heating the water will cost about 20 water will cost about 20 cents, if you like long cents, if you like long showers, it will easily cost showers, it will easily cost about 1 €.about 1 €.

In England…In England…

In England houses have showers, but In England houses have showers, but the warm water is not self-evident. the warm water is not self-evident. Sometimes you have to take a cold Sometimes you have to take a cold shower (specially in the mornings). shower (specially in the mornings). There can be warm water only once There can be warm water only once or twice a week.or twice a week.

Exercise 1Exercise 1

How can you save energy at home? How can you save energy at home? Find out 10 practical ways to save Find out 10 practical ways to save energy in your household.energy in your household.