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The windmill was struck by lightning
As Baikal Onguren lost an ambitious project of renewable generation - in the material of the special project "Ecology of the Far East"
The wind-solar power station in the village Onguryon of the Olkhon district worked in incomplete four years - the first large-scale project in the Irkutsk region in the field of renewable energy. But the attempt to provide "green" electricity to a remote village near Baikal turned into a complete and unconditional failure. In May of this year, the installation seems to have been launched again, but information about its work is contradictory.
Incomplete four years. This turned out to be the life cycle of a wind-solar power plant in the village of Onguryon, Olkhonsky District - the first large-scale project in the field of renewable energy in the Irkutsk Region. The equipment, which was originally intended to replace the existing diesel installation, failed in the summer of 2016. Now it will be replaced by the usual diesel generator. Kislorod.LIFE tried to answer the question of why the seemingly breakthrough renewable energy project never took off.
Russia is still significantly inferior to the world leaders in terms of renewable energy sources - in the structure of the country's energy balance, such sources account for only 0,2%. But in terms of growth rates, not everything looks so deplorable. According to the International Renewable Energy Agency (IRENA), ten years ago there were no solar power plants in our country (from the word "generally"), and the installed capacity of wind energy facilities was a measly 10 MW (the last in the past years grew by only 900 kW, but it was the wind that opened up fantastic prospects - thanks to the interest in the sector from Rosatom and other large corporations). However, the installed capacity of SPP only within the boundaries of the Unified Energy System of the Russian Federation reached 1 MW by January 2016, 60,2 (according to the head of Rusnano, Anatoly Chubais, this industry has already taken place in Russia). Over the year, it follows from the report of the System Operator of the UES of Russia, it increased to 75,2 MW. Regions of the Volga region and the south of the country are leading in terms of commissioning new capacities for obvious reasons. Two more facilities are located in Altai, a small power plant operates in the Trans-Baikal Territory, where the city of Borzya is located - the Russian leader in terms of the number of hours of sunshine per year: on average, their number here reaches 2797.
Irkutsk region can boast 2100 solar clock in the year, but its individual territories are almost inferior to the record city: in the mainland part of the Olkhon region, for example, the shone shines for 2765 hours per year. Here is the village Onguren, located 142 km from the regional center - the village of Elance, in the mouth of the Glubokaya Pad River, at 2 km to the north-west of its confluence with Lake Baikal. The settlement, inhabited by about 400 people, is isolated from the centralized power supply system. It was here in 2010 and decided to create the first large renewable energy facility in the region.
Construction of the wind-solar station at 100 kW with a diesel generator set of the same power as a reserve began in 2011 year, launched in the autumn of 2012 year. The work was carried out by Oblcomunenergo, cost about 40 million rubles and was financed by the regional program of energy saving and energy efficiency improvement at 2011-2015 years, as well as through federal co-financing.
But in the summer of 2016 the station ceased its work. Official version: the equipment has failed because of lightning. Unofficial (and more convincing) is that sophisticated technology was simply misused.
Vladimir Golovshchikov of ISEM SB RAS is the only one who frankly tells about why the project of RES in Ongureon had such a tragic fate
"WE HAVE ACTUALLY IMPROVED IT"
Significant risks were laid down in the initial design of the combined power plant, notes the chief specialist of the Institute of Energy Systems named after L.A. Melent'ev (ISEM) SB RAS, Candidate of Technical Sciences Vladimir Golovshchikov, who, as a member of the Scientific and Expert Council on Energy Efficiency under the Government of the Irkutsk Region and a former the advisor to the general director of OGUEP "Oblkommunenergo" supervised it. “The project was prepared by the structure of the NITOL group and it was actually imposed on us,” he recalls. "The Expert Council was given an uncontested option, for which we voted."
At the same time, it was based not on an analogue already tested in another region, but on a set of equipment that seemed to the developers to be advanced. For example, Bolotov's three vertical rotary turbines complement 36 solar panels. The manufacturer refused to disclose their technical characteristics, citing a trade secret. Despite this, the project provided for their stable operation at a wind speed of 3-4 m / s. In practice, however, they consistently gave out the declared current only at 6 m / s and above. In addition, the equipment supplied clearly did not meet the declared parameters - in particular, the distance between the rotating parts and the generator was beyond any reasonable tolerances. “It's not about the quality of workmanship - it feels like we were supplied with parts from different sets,” says Golovshchikov.
As a result, the power of inverters and batteries that were installed on the project was insufficient. In addition, they were not tested for compatibility with solar panels. The scheme of electrical networks chosen by the designers was also not optimal.
A significant part of the technical shortcomings were eliminated by the installers from ZAO Enerprom-Electronics, who installed the equipment and monitored its operation until the first quarter of 2014. But it was beyond the power of these nice guys to eliminate the weaknesses of the project itself. First of all, this concerns the composition of the equipment: it was necessary not only to combine the diesel and renewable sides of the station, which produce, respectively, alternating and direct current (which, for example, is quite successfully coming out in the AGUE projects, which are implemented by the Hevel Group of Companies; or at the facilities Sakhaenergo in Yakutia, built to reduce the consumption of diesel fuel by replacing part of the generation of RES). But also to ensure their work in automatic mode. “But the network part, synchronization was not worked out,” states the chief specialist of the ISEM SB RAS.
In addition, the project was initially closed - the power of the station was determined in 200 kW without the possibility of expansion. "In an amicable way, it was necessary to do it twice as much," Golovshchikov stresses. - Or divide the power supply system of the village into two parts. " To provide for the possibility of expansion was also required because with the advent of renewable energy sources in Ongureon, there was no permanent source of electricity at all. As a result, the load on the station increased. And if at first the diesel unit was planned to be included in exceptional cases, as a reserve, then after some time it had to be used regularly. This practically nullified the effect for which the wind-solar station was built - saving on diesel fuel and reducing the cost of generating energy.
When there is no money
"One more giant problem was talked about right away: solve the question of exploitation. It is necessary at least to make sure that the equipment is working properly, "continues Golovshchikov. The power station and networks were transferred to municipal property, and for the first time they were serviced by the Municipal Unitary Enterprise "Podlemorye", which, as it is not difficult to guess, did not have (and does not have) the necessary staff. The administration of the village reported that the financing of the enterprise does not allow the hiring of an appropriate specialist.
The GUELP "Oblkommunenergo-sales", which from the year 2014 started to operate these facilities under a contract of gratuitous use, collided with the money problem. At some point, the funds were no longer enough to pay for the dedicated satellite communication channel, through which the stations were monitored in real time. By the way, by the way, it was not possible to prevent the freezing of some of the storage batteries in the winter of 2015. The remaining drives had to regroup, which reduced the power of the entire station.
And the summer of 2016 brought the shutdown of all "green" generating equipment. "It is said that there was an overstrain because lightning struck the power line," argues his reasons for the Golovshchikov. - It turns out that it jumped past the transformer? There could be a direct hit [in the room with electronic equipment], but there went the commission, and no one saw any visual damage. "
Earlier, the expert insisted that the accident was a "direct consequence of the lack of normal maintenance" of equipment that exacerbated the miscalculations of the designers. Whatever it was, now in Onguren from the north of the Irkutsk region are moving a diesel power plant. Repair of the wind-solar plant is estimated at a minimum of 600 thousand rubles. And while it is not going to hold it.
Unfortunately, summarizes Golovshchikov, the case of Onguryon is not the only example in the Irkutsk region, when the intentions to introduce modern renewable energy technologies ended in complete failure.