2/2012 - Fingrid
2/2012 - Fingrid 2/2012 - Fingrid
Submarine cable linkingthe Åland Islands and mainland FinlandThe transmission cable connectionplanned between the ÅlandIslands and mainland Finlandwould start in Finland in Naantali withan AC/DC converter substation andwould reach the Åland Islands in thevillage of Ytterby in Jomala. The connectionwould continue via the DC/ACtransformer substation in Ytterby as a110 kilovolt overhead transmission lineto the Tingsbacka substation, where thepresent connection from Sweden is alreadyoperated.The cable could also be operated inthe other direction. If wind power productionincreases on Åland as planned,surplus electricity could be supplied tothe mainland on windy days. The importantthing in the utilisation of windpower is that there is a strong grid,which can be used for reserve powersupply whenever necessary and throughwhich any excess electricity can be deliveredfurther.The cable connection is used fortransmitting electricity on a market basis,in other words from a less expensivearea to a more expensive area.“The connection also provides yetanother opportunity to integrate thetransmission grids in Finland and Sweden.A submarine cable connects Ålandto Sweden and to mainland Finland,and on Åland the connection would runon overhead lines. Such an additionalconnection could be used for electricitytransmission between Finland and Sweden,”says Kraftnät Åland’s CEO JanKahlroth.According to him, the practical solutionswill be agreed upon at a later datebetween Kraftnät Åland, Svenska Kraftnät,Fingrid and Nord Pool Spot.Kraftnät Åland will be responsible forthe cable investment, and the companyhas applied for an investment subsidyfrom the regional government of Åland.The regional government, in turn, canapply for a subsidy for this type of specialexpenditure from the budget ofFinland. The Delegation of Åland is responsiblefor this process.The state of Finland has given a subsidyof 40 per cent to the earlier infrastructureinvestments on Åland – theelectricity transmission connectionto Sweden and the gas turbine powerplant. The state has granted a subsidy of40 per cent or a maximum of 50 millioneuros for the cable costing a total of125 million euros. The final agreementon the construction of the cable can bemade in the autumn after the EU hasapproved the subsidy package. FINGRID 2/2012 | 30
POWERED BYELECTRICITYIn this column, Fingrid employees share their experiences ofappliances driven by an electric motor. Corporate Adviser RistoLindroos tested the Kalkhoff 8C HS electric bicycle.Electric partner ofcommuter cyclistText by Risto Lindroos | Photograph by Juhani EskelinenIhad been thinking of buying anelectric bicycle for quite some timewhen I saw an article in the springissue of magazine “Latu & Polku”, comparingelectric bicycles. The comparisonwas won by Kalkhoff 8C HS. The bikehas a 540 Wh lithium battery and a 250watt electric motor. The bike is given arange of 120 kilometres with a singlecharge.I soon found myself as a happyowner of an electric bike, and I usedthe bike on the next morning to ride towork. Switching on the electricassist by the switch on the handlebar,and the LEDs indicate thatthe battery is full. This is reallyeasy to ride! The riding positionis erect, so it is effortless to followthe traffic. The bike negotiatescurves very well, althoughin the lower position the pedaltends to scratch the asphalt.It is speedy going, but stillsomeone tries to pass. “Oh,you’ve got a doping bike,” a passer-bysays. It’s like being a dogowner: it is easy for like-minded peopleto start talking. “I had to electrify mybike, because there was so much snowin the winter. I used a self-install kit,”the passer-by continues.On the second day, the trip to workgoes as smoothly as dancing 30 yearsago. Following an easier ride, I cometo work feeling refreshed, and I returnhome less tired. On the third day, I feellike a pro. But why is that LED blinking?Maybe I should have read themanual after all. And behold, the batterygoes dead on the way to work. NowI understand why this needs a transmissionof eight speeds. There is no otheroption than to pedal harder! When Iget home from work, I am exhausted,although riding without the electric assistis not any heavier than riding a bikewith a single speed.After one month’s experience, I beginto be convinced. An electric bike ismost competitive over distances of 15to 25 kilometres, with relatively muchurban routes and hills. In an urban environment,an electric bike is faster thanconventional bicycles thanks to its betteracceleration. During the test period,my electric bike was an estimated 20per cent faster than my hybrid bike. Theaverage speed was approx. 25 kilometresper hour. The greatest benefit camefrom the fact that I was not tired in theevenings after the way home. This iswhy I can use the electric bike for relativelylong distances more often thanthe hybrid bike. I figured out that theelectric bike will pay itself back in timesavings and savings in travel costs in aperiod of two to three years.If you want, you can use the electricbike for exercise purposes just like anyother bike, because the electric assist isdisengaged when the speed goes over25 km/h. On the other hand, you canalso use it for leisurely ride, becausepedalling with the assist is child’s play.The electric bike equipped with studdedtyres is definitely also a competitive alternativein the winter.The speed of an electric bicycle ismore stable than when riding a hybridbike. There is really no speed loss in aclimb. Being quite heavy, the electricbike runs downhill a little faster thana regular bike. A cyclist with an electricbike is the first to shoot from trafficlights, because the electric motorkicks in at start.One of the foremost technicalcharacteristics of an electric bicycleis sufficient battery capacity.The brakes must also be effective.The bike must not assist pedallingin a jerky fashion. These characteristicswere fine in the biketested. However, the transmissionratio seemed to be too small athigh speeds. Other drawbacks includethe greater need for serviceand a relatively high price.A few years ago, an electric bicyclewas primarily just an aid for the disabledand aged. Electric bikes were notthat commonplace mainly due to theexpensive batteries. The prices of electricbicycles have come down in a fewyears and made them more popular.This is why electric bikes will probablybecome common in Finland, too, andfind users among cyclists aged 50+, especiallyin the Helsinki region, wherecycling is often a faster way of commutingthan motoring and public transportanyway. FINGRID 2/2012 | 31
- Page 1: Corporate magazineFingrid Oyj 2/201
- Page 4: 12Design inA NATIONAL LANDSCAPEWell
- Page 7 and 8: Design and technologyhand in handTh
- Page 9 and 10: to be constructedto be dismantledFI
- Page 11 and 12: Fingrid’s type towers havepassed
- Page 13 and 14: Asset management dayfocused on occu
- Page 15 and 16: The compilation work was undertaken
- Page 18 and 19: A GOOD SERVANTbut a poor masterThe
- Page 20 and 21: sic videos and short films. He join
- Page 22 and 23: Planning the networkwith the custom
- Page 24 and 25: Regional grid planning in the Helsi
- Page 26 and 27: Planning of networksolutions:ADVANC
- Page 28 and 29: Åland Islands producea quarter of
- Page 32 and 33: Grid ABCThis article series deals w
- Page 34 and 35: Otso, Mesikämmen, Vaari...the Finn
- Page 36: FINGRID OYJArkadiankatu 23 B, P.O.B
Submarine cable linkingthe Åland Islands and mainland FinlandThe transmission cable connectionplanned between the ÅlandIslands and mainland Finlandwould start in Finland in Naantali withan AC/DC converter substation andwould reach the Åland Islands in thevillage of Ytterby in Jomala. The connectionwould continue via the DC/ACtransformer substation in Ytterby as a110 kilovolt overhead transmission lineto the Tingsbacka substation, where thepresent connection from Sweden is alreadyoperated.The cable could also be operated inthe other direction. If wind power productionincreases on Åland as planned,surplus electricity could be supplied tothe mainland on windy days. The importantthing in the utilisation of windpower is that there is a strong grid,which can be used for reserve powersupply whenever necessary and throughwhich any excess electricity can be deliveredfurther.The cable connection is used fortransmitting electricity on a market basis,in other words from a less expensivearea to a more expensive area.“The connection also provides yetanother opportunity to integrate thetransmission grids in Finland and Sweden.A submarine cable connects Ålandto Sweden and to mainland Finland,and on Åland the connection would runon overhead lines. Such an additionalconnection could be used for electricitytransmission between Finland and Sweden,”says Kraftnät Åland’s CEO JanKahlroth.According to him, the practical solutionswill be agreed upon at a later datebetween Kraftnät Åland, Svenska Kraftnät,<strong>Fingrid</strong> and Nord Pool Spot.Kraftnät Åland will be responsible forthe cable investment, and the companyhas applied for an investment subsidyfrom the regional government of Åland.The regional government, in turn, canapply for a subsidy for this type of specialexpenditure from the budget ofFinland. The Delegation of Åland is responsiblefor this process.The state of Finland has given a subsidyof 40 per cent to the earlier infrastructureinvestments on Åland – theelectricity transmission connectionto Sweden and the gas turbine powerplant. The state has granted a subsidy of40 per cent or a maximum of 50 millioneuros for the cable costing a total of125 million euros. The final agreementon the construction of the cable can bemade in the autumn after the EU hasapproved the subsidy package. FINGRID 2/<strong>2012</strong> | 30
Change language