some cooling units. when it reaches the rooftop, the hot air flows through almost 200 heat exchangers. oh, gosh. that s really windy. we are getting cold water from a district heating system from the city, and then we give them warm water back. it is a heat exchange, so you take one warm element and then one cold element, and you actually exchange the heat and warmth. residual cool air is left over from this process and that s used to help cool all those hot servers. across the road is a pump station. all these different coloured pipes are carrying water. as you might have guessed, red is hot and blue is cold. so right here, we have the heat pumps where we elevate the heat. so when we receive it, it s only 27 degrees celsius. but we need it to elevate it to 70 degrees to put it in this district heating grid.
like stepping inside a sauna. what happens to the heat that s coming off these servers? so the heat goes up to the roof where we have some cooling units. when it reaches the rooftop, the hot air flows through almost 200 heat exchangers. oh, gosh. that s really windy. we are getting cold water from a district heating system from the city, and then we give them warm water back. it is a heat exchange, so you take one warm element and then one cold element, and you actually exchange the heat and warmth. residual cool air is left over from this process and that s used to help cool all those hot servers. across the road is a pump station. all these different coloured pipes are carrying water. as you might have guessed, red is hot and blue is cold. so right here, we have the heat pumps where we elevate the heat. so when we receive it,
district heating system. keeping homes, offices and indeed swimming pools warm, all year round. heat is the biggest end use for energy all over the world, it s critically important for survival in a country like finland, where the winters long, cold and dark. in the recent move by russia to cut off supplies of gas and electricity response to finland joining nato has caused concern. so ideas like the san storage battery, which began life at this pulp mill have been backed enthusiastically by local and government. the power demand is local and government. the power demand is so local and government. the power demand is so high, local and government. the power demand is so high, it local and government. the power demand is so high, it can - local and government. the power demand is so high, it can be i demand is so high, it can be really expensive to find that power in the middle of the winter if we have some stations just there for a few weeks or hours in the winter when it is th
is converted into heat, which warms the sand up to around 500 degrees celsius. crucially, the sand can keep this heat without loss, potentially for months. here in kankaanpaa, the heat in the sand battery is then used to help power the district heating system, keeping homes, offices and indeed swimming pools warm all year round. heat is the biggest end use for energy all over the world. it s also critically important for survival in a country like finland, where the winter is long, cold and dark. and the recent move by russia to cut off supplies of gas and electricity in response to finland joining nato has caused concern. so ideas like the sand storage battery, which began life at this former pulp mill in the city of tampere, have been backed enthusiastically by local government. the power demand is so high.
heat without loss potentially for months. here in kankaanpaa, the heat in the sand battery is then used to help power the district heating system. ..keeping homes, offices and indeed swimming pools warm all year round. heat is the biggest end use for energy all over the world. it s also critically important for survival in a country like finland, where the winter is long, cold and dark. and the recent move by russia to cut off supplies of gas and electricity in response to finland joining nato has caused concern. so ideas like the sand storage battery, which began life at this former pulp mill in the city of tampere, have been backed enthusiastically by local government. the power demand is so high. it can be really expensive to provide that power in the middle of the winter. if we have some stations that are just there for a few weeks,