Aerial view of the Lipno hydro power plant
A place where ecological energy is born. The magical harmony of the Šumava scenery, the man-flooded valley and admirable technical work, over which the sun has been rising for more than half a century already. We intimately know Lipno – and yet a different one. The virtual tour of the hydro plant on the "South Bohemian Sea" offers you all this. Of all virtual tours, only the Lipno tour offers you the biggest "flight". It offers not only a panorama from hundreds of metres above ground level, but also takes you to more than 160 metres below ground to the working generating sets of the power plant.
The tour is an honour to the uniquely beautiful atmosphere of the Lipno Dam and the life around it. But it is above all a tribute to several generations of the Šumava power engineers. They are the ones that help harness the young Vltava River and transform it into a useful force for thousands of homes.
Over more than 50 years of reliable operation, the Lipno power plant deserved renovation and new life in the period 2012-14. Complete replacement of one of the two sets at a cost of about CZK 200 million makes it possible to generate more electricity from the same volume of water. Due to an increase in efficiency by about 4%, the annual output of electricity increased to 4 million kWh. Every year, Lipno supplies electricity to a further thousand South Bohemian households. Our virtual tour also maps the results of the biggest modernisation in the history of the power plant in detail.
On the waves of the South Bohemian Sea
The construction of the large valley dam on the upper Vltava was already included in plans of designers already at the close of the 19th century; however, the project was implemented more than 50 years later in the era of socialist industrialisation of Czechoslovakia. The entire Lipno waterworks was gradually built in the period 1953 - 58. Its backwater reaches from the Lipno dam up to Nová Pec, which is a distance of more than 40 km. With its area of 48.7 km2 it is the largest water body on the territory of the Czech Republic. The volume of the preparatory works at the time of construction also corresponded to this, especially the extensive demolition and deforesting works, relocation of the last section of the Certlov – Vyšší Brod – Lipno railway line and construction of a road along the lake shore. Above all, however, entire municipalities were flooded (the, so-called, big flood zone thus eliminated 24 permanent settlements) or their parts (Frymburk, Přední Výtoň, Dolní Vltavice, Lipno). The creation of the big water body meant the end of the Vltava Valley, where the river meandered between the fields and meadows. For instance, the so-called Heart of the Vltava disappeared, this is the place between Horní Planá and Nová Pec, where the meanders of the river formed a symbolic heart. One of the interesting aspects of the entire works is also its cross-border impact. In the case of higher dam water levels, the so-called Czech-Austrian bay of the Lipno Dam that is located near the Kyselov - Diendorf border crossing is flooded. In place of the border line, wooden stakes with an upper section worked to resemble classic border stones rise out of the water. You will never see such a thing in any place other than Lipno! A trail runs from the Austrian side and ends at the Bayerische Au lookout. The second bank of Lipno on Czech territory is a chapter in itself. It was opened to the public only after the fall of the Iron Curtain and still has something of the Old Šumava in it. Come and see for yourselves!
When evaluating the impacts of the construction of the Lipno Dam, however, the positive aspects are significantly dominant. The new residential development in the upper areas ensured the development of the entire region; an important element is currently also the already all-season tourism on the inland side of the lake. The water body of the lake in the beautiful environment of Šumava, which at the broadest point spans a distance of up to fourteen kilometres, is used for summer recreation, sailing on the lake and efficient fish farming.
The Lipno I HPP is a component of the Vltava cascade. The water is retained by the combined earth and gravity dam with a height of 26 m and length 296 m. The content of the reservoir is 306 million m3 and it is used for multi-year outflow control. The control outflow is used to increase minimum flows, reduce flood peaks and increase production in the rest of the power plants of the Vltava cascade.
The power engineering significance of the Lipno I HPP is production of cheap, environmentally clean, top quality electric energy and its utilisation for control of the national power engineering system. Its rapid build-up to the full power output of 120 MW within 150 seconds and remote control from the central control room of the hydro power plant in Štěchovice makes it possible to control the output energy balance of the electrification system of the Czech Republic. The fluctuation of the outflow is set-off by the flow HPP Lipno II with an output of 1.5 MW, which was built under the Lipno I HPP.
From the Vyšebrod Abbey to the ridges of Šumava
A view from a height is a reward and balm for the souls of those who love the Šumava foothills/lowlands and especially Lipno. It runs tens of kilometres into the distance toward the Northwest. Significantly closer is the northerly municipality of Lipno nad Vltavou with its Stezka tree-top lookout that is attractive for tourists. When looking toward the east and south-east, our view into the Vltava Valley is gradually attracted by the massive Devil’s Wall (Čertova stěna) that, for instance, inspired Bedřich Smetana, and also Vyšší Brod. This is the location of a Cistercian Monastery from the 13th century. To the east, Rožmberk Castle rises above the Vltava River; this was the former seat of the powerful South Bohemian noble ancestry after which the entire town is named. To the south above the Lipno Dam is Bear Mountain (Medvědí hora) (934 metres above sea level), which hides the ruins of the Vítkův kámen Castle (1035 metres above sea level) from the beginning of the 14th century. In good weather conditions, it is possible to see the Alps from here. As a distant backdrop in the same direction, we see the area of the so-called Tripoint (the contact area of the borders of the Czech Republic, Austria and Germany). The nearest of the landmarks of this south-eastern Šumava border zone are the Hochficht Mountain (1338 metres above sea level) and Plechý Mountain (1378 metres above sea level), which is currently the highest mountain of the Bohemian side of Šumava.
In the premises of the Lipno hydro power plant
The power engineering part of the Lipno waterworks is a peak control power plant as well as the highest placed element of the so-called Vltava cascade – system of hydro power plants that further downstream includes the river stages of Hněvkovice, Kořensko, Orlík, Kamýk, Slapy, Štěchovice and Vrané nad Vltavou. This entire huge force with a total installed output of more than 750 MW (i.e. ¾ of the output of one Temelín block) in principle functions as one power plant and is controlled from the ČEZ Central Control Room in Štěchovice. Together, they form the Vltava cascade with a drop of 369 metres and Lipno itself makes up 44 % of this drop. Due to the control function of the Lipno I HPP, on average its generators are in operation for eight hours every day. According to the electricity requirements, the turbines are usually started 2 - 3 times every day. Just like any other peak source, the Lipno HPP and its operators are continuously ready for operation. From the first impulse, the Lipno I HPP is ready to build-up and run at full output within a few minutes.
The penstock of the Lipno I HPP is located on the left side of the dam and comprises the dam profiles with trigger gates, with trash racks, which prevent the entry of large water-borne debris, and a sluice gate. It is only thanks to the use of the natural conditions of the landscape, the so-called Devil’s flows (Čertovy proudy) between Lipno and Vyšší Brod, that it was not necessary to build a dam higher than 25 metres. The required drop is achieved in such a way that the water runs through the intake and drops to a depth of 160 metres through steel pressure shafts of diameter 4.5 metres. Underground in front of the ball valves chamber, the pipe diameter is via an adapter reduced to 2.5 and guides the water to the operating valves – ball valves. It runs via a horizontal pressure tunnel to the turbine, which it drives and runs out via a 3.6 km long discharge tunnel with a drop gradient of 1.3 ‰ to the surge pond of Lipno II above Vyšší Brod. Here, it again runs into the Vltava water discharged from the Lipno Dam for reason of maintaining the minimum flow rate in the initial watercourse of the river.
The actual premises of the Lipno I HPP offer a view of all the most important parts of the plant. A massive dam wall rises behind the 22 kV switching house. In the foreground is the entrance to the entrance hall; on the right side is the operations building with the Information Centre in the loft. In the foreground behind the fence is the terminal railway station on the line from Rybník. At the entrance to the premises is the administration building in front of which is a runner removed from the underground power plant during one of the previous repairs.
The electricity from the generator is conducted via cables in a slanting tunnel to the above-ground transformers and 110 kV switching station. The premises at ground level also have a 22 kV switching station, which supplies power to the extensive surroundings.
The switching station R 110 kV has a total of 11 fields, of which four are transformer fields, one is a bus-bar switch field and five are outlet fields. Of the five outlets, one is intended for power supply to the Czech Railways (the railway line Rybník – Vyšší Brod – Lipno was electrified already upon start of operation in 1911). Two fields are the TG1 and TG2 generators, two fields are the distribution transformers, where 110 kV is transformed to 22 kV and feeds the 22 kV switching station that is used for distribution to the local surroundings. The classic outdoor dual bus switching station has upgraded features with SF6 circuit breakers with a quencher and combined current and voltage transformers with the same type of insulating material. The initial low-oil switches, metering oil transformers, were eliminated.
The switching station has four outlets to the 400 kV switching station at Dasný near České Budějovice, where the 110 kV is transformed to to 400 kV. Both switching stations at Lipno are controlled by the E.ON control centre in Brno. The ground cables running to the top of the pole have optical fibres that are used for communication between the control centres.
Before entering the underground cavern, the power plant employees and maintenance specialists first enter the entrance hall. Their steps are guarded on the left side by the fenced 110 kV switching station and on the right side by the operations buildings. Set in the paving are the railway tracks that continue to this point from the terminal railway station.
In the hall itself, everybody will be attracted by the contemporary poster with the inscription “Lipno – Work of the Second Five-Year Plan – The Pride of South Bohemia”. More interesting than the period of the tributary text is the diagram of the main parts of the power plant that demonstrates its functional essence.
In the entrance hall is also a cargo lift with a load capacity of 80 tons and also the entrance to the oblique personal lift to the underground machine room.
The specialist operators run the power plant operations directly from this control room. The control panels on the sides, among other things, signal the state of both turbo generators or supply of power to the nearest locations (e.g. Frymburk, Loučovice). On a pair of desk monitors, we also see the summary view of the security cameras located at the strategic points in the premises of the power plant and the underground areas.
It is also possible to monitor the small automatic Lipno II HPP from the control room.
The machine room cavern
In the underground areas of the power plant that was commissioned in 1959 are two fully automatic generator sets with Francis turbines and the essential electrical equipment.
The generator floor is located in the 65 m long, 38 m high and 22 m wide machine room cavern built in the broken rock. It is one of the unique technical pieces that are the pride of the Lipno HPP. The entire underground hall is set in the huge rock cavity in the shape of a tunnel. It thus not only has side facilities but also overhead space. The central points of the machine room are the two generators located in the protective noise barriers.
Two gentry cranes are used to move the technological equipment in the hall, each with a load capacity of 125 tons.
In the footsteps of modernisation
Modernisation of the TG2 generator set of the Lipno HPP started at the beginning of November 2012. In its course, it offered unique views. For instance, in December 2012, a 230-ton rotor was removed from the stator of the generator in the underground machine room for repair as well as two 50-ton halves of the generator stator for scrapping. In August 2013 the concreting of the new turbine spiral casing was done, which required the complete stoppage of the power plant operations (i.e. even the normally functional TG1 generator set) and evacuation of the Lipno-Vyšší Brod discharge tunnel. The new concrete for the spiral casing was transported via this tunnel. The last to arrive at Lipno in November 2013 was the turbine runner with a weight of 7.5 tons. Its diameter is 2.15 metres and operates at an rpm of 375. SEE THE INTERESTING MOMENTS OF THE MODERNISATION OF THE TG2 GENERATOR SET!
A similar rejuvenation process started on the second generator set at Lipno - TG1 - in autumn 2015.
Transport of technological equipment and staff to the underground areas is done using a lift of load capacity 80 tons that is located in an oblique tunnel with incline of 45°, width 6.8 m, height 9.7 m and length 200 metres. The travel time is approximately 20 minutes. The transportation of people is by personal lift located below the floor of the cargo lift. The travel time is approximately 2 minutes.
An interesting fact is that it is the only standard access route into the power plant. Even the largest components in the power plant must be designed in such a way that they get into the bowels of the power plant just by means of this cargo lift.
Interior of generator TG2
In the upper hanging spider is the thrust bearing that holds the entire pull of the machine – generator rotor, runner, impeller shaft and pull of the water – i.e. it displaces about 550 tons. The generator rotor itself weighs 240 tons. The bearing is of the so-called self-lubricating type, and as soon as the machine starts rotating the centrifugal force creates a pump and drives oil through the pipe, which is subsequently cooled on the lower floor in the hydraulics area in the Gmar coolers. The cooling water is fed to the coolers in the generator from the water management system, hot air that is heated in the stator is blown through this water cooler by fans that are parts of the rotor and the cooled air is recycled. The generator is connected to a double spider, and the outlet runs to the 15 kV switching station. From here, 27 cables carry the power via the oblique tunnel to the block transformers in the 110 kV switching station.
In the footsteps of modernisation
Modernisation of the TG2 generator set of the Lipno HPP started at the beginning of November 2012. In its course, it offered unique views. For instance, in December 2012, a 230-ton rotor were removed from the stator of the generator in the underground machine room for repair and two 50-ton parts of the generator stator for scrapping. In August 2013 the concreting of the new turbine spiral casing was done, which required the complete stoppage of the power plant operations (i.e. even the normally functional TG1 generator set) and evacuation of the Lipno-Vyšší Brod discharge tunnel. The last to arrive at Lipno in November 2013 was the turbine runner with a weight of 7.5 tons. Its diameter is 2.15 metres; when in operation it rotates at an rpm of 375 and at full output it has a water flow rate of 46 m3/sec.
A similar rejuvenation process started on the second generator set at Lipno - TG1 - in autumn 2015.
Ball valves chamber
The ball water valves open and close upon every start-up and shut-down of the machines. The space of the ball valves is a separate construction chamber divided by pressure from the cavern of the power plant using a safety valve. The safety valve has a width of 2.5 m. See the closure of the ball valve (accelerated 3x).
Before the ball valve, the pipe forms an elbow and runs upwards through the 160 m feeder to the pressure shaft of diameter 4.5 m. The Swiss made ball valve is fully automatic – first, the bypass valve opens, followed by the operating seal and finally the hydraulics of the servo cylinder turn an inner body by 90°. The water flows by loss-free laminar flow to the turbine. An integral part of the machine is also the second – inspection – seal. The servo cylinder is controlled by high-pressure hydraulics with a pressure of 200 atmosphere. The high-pressure hydraulics consume less oil, they constitute a smaller ecological burden and are more reliable.
When the turbine is running at full output, the ball valve has a water flow rate of 46 m3 per second at 60 MW. For 1 kWh the water consumption is precisely 2.76 m3. This indicator makes Lipno the most efficient ČEZ hydro power plant in terms of water consumption. The rest of the large hydro power plants on the cascade for 1 kWh of electricity require a substantially larger volume of water – Orlík 6 m3, Slapy 8 m3.
The ball valve is made from several parts for reason of transport underground and to the ball valve chamber. It must be transported underground using the oblique cargo lift, both cranes in the main machine room on the turbine floor. From here it is necessary to transport on the rails into the ball valves chamber and using a further crane to the assembly site.
Seepage water reservoir
Around the cavern of the ball valves and pressure tunnels is the so-called drainage system, which guides the water seeping from the broken rock into the seepage water reservoir from where it is pumped to the discharge tunnel. Up to 80 m3 of water is pumped from this space everyday. There are three seepage water reservoirs in the entire hydro power plant.
Each of the reservoirs has a strip petroleum product separator and a petroleum product detector as well as a wastewater treatment system via the active charcoal filtering station. This ensures that any petroleum product leaks do not reach the water course.
Turbine spiral casing
The spiral casing sucks in water through the runner blades, which start rotating and it drops into the suction pipe and onwards into the 3.6 km long discharge tunnel, and is drained into the surge pond at Vyšší Brod. The water is released by twenty rubber blades, which are attached to the control circuit with two draw bars to the hydraulic motors which control the pressured oil. The control circuit starts rotating and the volume of water on the turbine changes, and hence also the rpm and output of the turbine. The control capability of the turbine makes it possible to work with an output ranging from 0 to 60 MW. The sixteen pole generator synchronously rotates the robust turbine shaft to 375 rpm. The entire process is fully automatic and for this reason the start-up of the turbine takes approximately 2 minutes. This is the advantage of hydro power plants, thanks to which they can quickly support the power supply network.
In the footsteps of modernisation
Early in the morning of 20 August 2013 tons of special concrete were poured on the new spiral casing of generator set TG2. At the same time, during the days when the concreting was prepared and after its completion, a unique state occurred in which the entire 120 MW capacity of the Lipno HPP was out of service. During the concreting works, the shut-down of the renovated TG2 was also extended during the concreting of the spiral casing also to the sister TG1. This was due to the necessity to use the common 3.6 kilometre discharge tunnel as a transport route for the concrete trucks. SEE THE INTERESTING MOMENTS OF THE MODERNISATION OF THE TG2 GENERATOR SET!
In the auxiliary plants of the modernised TG2 generator set, certain differences are clearly visible as compared with the initial low-pressure hydraulics of the as yet unmodernised TG1 generator set. The entire equipment is used to ensure the movement of the so-called blades of the Francis turbine and allow control of the water flow to turbine. The Lipno turbines are capable of controlling – changing – the output in the full output range, i.e. from zero to the full output of 60 MW according to the power system. In the box of the EHR ČAR hydraulics is a modern high-pressure pumping aggregate with a pressure of 200 atm. From the aggregate the pressure is fed to the servomotors, which rotate the control circuit that is connected to the 20 blades of the Francis turbine. The turbine has a total of four bearings – thrust bearing combined with upper fixed-end bearing located above the generator in the thrust spider, lower fixed-end generator bearing and turbine fixed-end bearing. For the lower generator and turbine bearing, the lubricating aggregate is used. The oil in the thrust bearing and in the upper generator bearing is circulated without the use of a pump, so-called, self-lubricating principle. As soon as the machine starts rotating, the oil starts flowing and thus lubricates the bearings. During operation, it heats up so it is necessary to cool it. It is fed through Gmar plate coolers where cooling water flows through from one side and oil from the other.
Below the auxiliary plants is the water management system. This is the location of the pumps and filters used to treat the cooling water. The filters have 0.4 mm mesh filters. Each machine has an own cooling pump and one reserve pump for both. The output of the asynchronous pump motors is 100 kW and they are started-up and build-up to full output using so-called softstarters.
In the footsteps of modernisation
The TG1 generator set still has the initial EHR ČAR, which it needs for operation with 4 m3 of oil at a pressure of 2 MPa, i.e. 20 atm. As compared with this, the new high-pressure hydraulics on the TG2 generator set need 400 l of oil at a pressure of 200 atm. The oil volume for turbine control is thus substantially lower for TG2 than applies to the initial equipment of TG1. During the overhaul of TG1 that started in autumn 2015, which shall in terms of scope be the same as applied to TG2, this equipment will be replaced.
The control system ensures the operation of all technologies. It secures the operation of TG1 and TG2, switching station R 22 kV, R 110kV, and the common equipment below and above ground. In 2016, the replacement of the control system will start. The modernisation of the entire Lipno I HPP will thus be completed.
Occupational safety in the interior of the turbine is ensured by means of gates. One set is at the inlet after the dam, the second at the discharge from the turbine at the beginning of the discharge tunnel. Upon closing of both gates and pumping of the water out of the turbine, it is possible to enter the turbine and perform the necessary inspection and work. The inlet side of the object has quick water gates. These are safety gates that automatically shut-off the water flow to the pressure shaft in case of emergency. Between the plates of the quick water gates and the safety gates are trash rack zones which protect the turbine from debris. The clearance space between the trash bars is 48 mm.
The water is fed via the shaft to the turbine floor, flows through the elbow of the pipe narrowed to 2.5 m and flows into the chamber for the operating ball valves.
In order to allow for work in the turbine, the workplace is secured using safety gates. One set is before the intake object upstream of the trash racks. The second set is downstream of the turbine in the area for blocking of the suction pipes. The gate at the outlet is handled using a crane of load capacity 16 tons. After blocking of the turbine on both sides, the water is pumped out of the interior space and it is possible to work safely.
Above the concrete shell of the cavern is 80 to 100 m of rock. The concrete thickness at various points is from 0.8 to 1.7 m. The building is divided into four concrete blocks, which are continuously monitored.
An interesting feature of the area above the arch is the so-called "well of the Lipno HPP" (a cuboid metal container placed beside a red painted stairway). Drinking water was fed to this container from the rock for decades to make refreshment possible even deep underground. It was only within the framework of the preparation of modernisation in 2012 that a regular water supply system was installed here.
The air-conditioning chamber balances the air between the main machine room and cavern. Initially a thermal pump was also installed here, which was capable of extracting heat from wastewater after the turbine. Due to the fact that the area never cools to a temperature lower than 15 °C, it was not used and was thus eliminated later. The best ventilation is natural air draught l via the discharge tunnel from Vyšší Brod and the oblique tunnel. When starting up or shutting down the turbine, further exchange of air occurs thanks to the water in the discharge tunnel. The water either draws the air in or pushes it out.
Lipno – Vyšší Brod discharge tunnel
The water that flows through the runner drops into the suction pipe from where it is fed to the discharge tunnel via the elbow. The pressure below the runner is usually lower and a suction effect is created here thanks to the broader cone of the suction pipe. Here, we see the heads of twenty blades, seals and gaskets. Upon passage of the water through the turbine a noise of up to 105 decibels is created.
From here, the water flows out into the so-called discharge tunnel, which is of unpressurised type, the air "pocket" here is therefore continuous, i.e. even when both machines are running to full power and the lake of Lipno II is at its highest level.
View from the footbridges located between the exit points of the suction pipes and the connection of the two sections of the discharge tunnel into one (the so-called "pair of trousers") is unique particularly at the moment when the hydro power is starting-up. About 100 m3 per second of the Vltava water in both sections rushes around the spectators with constant noise. After running through the tunnel, it again sees the light of day at the portal of the tunnel above the Lipno II reservoir.
In the footsteps of modernisation
Over a period of a few days in August 2013, a unique situation occurred when the entire 3.6 kilometre discharge tunnel was evacuated. The long-term shut-down and modernised TG2 was joined by TG1 and the entire power plant went silent for the necessary period. It was the route for the concrete mixer trucks from the cement factory in South Bohemian Hubenov. On 19 August 2013 for several hours mixing trucks travelled one after another into the portal of the discharge tunnel above Vyšší Brod and ran underground up to the Lipno power plant to discharge concrete through long pipes directly to the newly founded spiral casing of turbine TG2. At dawn on 20 August, this extremely complicated stage of the modernisation of the Lipno power plant was successfully completed.
Lipno II hydro power plant
Flow HPP Lipno II with one generator set of output 1.5 MW is an integral part of the Lipno I HPP and is used mainly to balance the outflow from this peak hydro power plant. It has a Kaplan turbine with a drop of 10 - 4 m.
To balance the flow, a tank with a volume of 1.68 million m3 of water was built. The river was dammed with a combined dam of height 11.5 m. The dam has the necessary hydro technical equipment, which makes it possible to control the outflow even when the generator sets in the HPP are under repair. The Lipno II HPP is fully automatic, remote-controlled from the control room in Štěchovice and from the Lipno I HPP. Apart from the permanent production from the balancing flow, Lipno II also allows for the peak operation of the Lipno I HPP, which is the essence of its energy significance.
Visitors will find the information centre directly at the Lipno HPP.
Due to the location of the information centre in the loft of one of the two operational buildings of the Lipno I HPP (these are objects for auxiliary operations and part of the 22 kV switching station directly below the wall of the Lipno Dam) the information is focused mainly on the history and present of this hydro power plant. Visitors interested in information regarding Šumava, but also in the CEZ Group will also get their fill. The spiritual father of the information centre is Bedřich Kučera, head of operations at Lipno HPP.
The exhibition has several thematically specified parts: The Vltava River Basin (prepared by Povodí Vltavy), construction of the Lipno I and Lipno II hydro power plants, their current operations, the environment in the picturesque corner of our country in the area of thepower plant (Český Krumlov Region, Vyšebrod Region, surroundings of the Lipno Water Reservoir and the Lipno Region) and summary presentation of the most significant municipalities in the given region (Vyšší Brod, Lipno nad Vltavou, Frymburk and Horní Planá). The information is presented to the visitors in a lucid form on 22 artistically elegantly arranged panels, as well as through printed information materials and the DVD video projection system (which is mainly devoted to the history and present of the Lipno HPP). Other interesting films on the energy theme are also available. In the entrance area resort with a view into the so-called machine room of the oblique freight lift of the power plants are also panels presenting the location of our organizational units on the territory of the Czech Republic and current information on the origin and status of the strengthened CEZ Group.
The dominant feature of the exhibition is a model of the power plant documenting its appearance in 1959, i.e. from the period immediately after the commencement of operations. This model, which was built fifty years ago by apprentices from ČKD Blansko was in the depository Český Krumlov Museum for many years. After the reconstruction, as a loan from the museum, it became a permanent part of the exhibition.
How and when should it be visited?
The information centre of the Lipno HPP can be visited upon appointment during most of the year (in writing, by telephone). In the summer tourist season from 15 June to 15 September, the centre is open daily from 10:00 a.m. to 4:00 p.m. Every hour on the hour, films are shown for a group of 40 people, and an informative professional commentary by three power plant employees is also available. The entrance fee is CZK 20 for adults and CZK 10 for children and pensioners.
Additional information at the ČEZ website.
Left-click and drag to choose the viewing angle, or use the keyboard.
|Go to the main homepage|
|Go to the power plant’s homepage|
|Show information about the viewed part of the excursion|
|Show your position in the power plant|
|Show the thumbnail gallery|
|Pan to the left|
|Pan to the up|
|Pan to the down|
|Pan to the right|
|Enter full screen mode|