PSA: almost complete autonomy. We are building an autonomous energy supply for a small village

    So, in the posts earlier we talked about the energy supply of individual facilities and private consumers. Over the past two years, more than twenty hi-end stations have been built, which means the use of expensive and high-quality components and the satisfaction of almost all requests for power supply to the house, with the exception of heating (it will still take a long time to heat up with solar energy). And this trend is growing, as market prices are getting lower, and the average income of the population is higher.

    It is clear that it’s not life that people put solar power plants on, but when the supplying electricity company rolls out a price tag in the region of 1.5 million rubles per kilometer of power lines, plus a lot of money for the project, the choice becomes obvious. But this is not about that today. Today we will talk about the experience of powering a small village that has no access roads except for a winter road, and in the summer you can swim to it by river in a boat, or on a horse, climb the mountains and cross the river on a slope.
    This village is called Suranash, located in the Altai Republic, in the Turochak district. The population is 40-50 people, 10-12 yards. The main activity is animal husbandry, fishing, hunting, gathering. In a word, usual types of employment for the village. Power supply is provided by two diesel generators, the main and standby, with a total capacity of 34 kW. Since everyone has stove heating in the village, the main consumers are televisions, kettles, irons, washing machines and more.

    As we are the supplying organization, our task is to ensure uninterrupted power supply to the settlements entrusted to us.
    We deliver fuel to Suranash in the winter, before the winter road falls, and until next winter there is no access to fuel tanks. In order to exclude possible interruptions, as well as save money on the purchase of constantly rising fuel prices, it was decided to install a hybrid autonomous solar power station, as part of an energy service contract. (Caution TRAFFIC: a lot of photos) Read about it all below under the cut:


    The project was completely developed by the specialists of Energoservice Company LLC, starting from drawings, selection of components, and ending with installation and commissioning.

    I don’t see any sense in painting step by step, in general, the procedure looked like this: design, preparation of a construct, purchase of components, delivery to a place, installation work, and commissioning.

    At the design stage, the basic parameters of the station, location, design, calculation of the capacity of batteries, inverters, and other equipment were determined.

    Further, preparation began on the walls of the workshop - drilling, welding, packaging fasteners, packing components in boxes. A few photos of the process:







    After preparing all the components - loading and delivery to the place of construction, on winter roads, very insidious roads.






    Place of installation of the station:




    After justification at the base, preparations for installation began - they marked up and began to drill holes under the posts.
    Soil is not the most pleasant, clay, viscous.





    Then we installed concrete poles



    and began installing fasteners for solar panels.




    Fasteners are installed, installation of solar panels begins:





    Ruslan plays the role of Angry Bird. In fact, with these ropes we adjusted the angle of the batteries with respect to the sun.


    A view from afar:





    The production of solar panels is 10 kW * h at peak, on average from 5 and above, depending on the weather.

    Further, the work was divided into two parts: the first team was involved in installing charge controllers and autonomous inverters in the container, disconnecting cables, and other engineering work, the second team was engaged in fencing the territory. The third team in the person of me and the director of the enterprise came only to establish satellite Internet and to organize the IT part of the work.


    image


    It was decided to buy the Internet in Rusate, which offers a relatively affordable VSAT-Internet under the brand KiteNet.
    Installation and configuration went without any problems, except that the platform itself worked in test mode, and later, with the transition to normal mode, I had to go to Suronash again to restart the terminal and configure sending reports to Conext ComBox.

    The container housed charge controllers and stand-alone inverters, the choice fell in favor of Schneider electric.





    After tuning and starting the station, it remained to configure the autostart of the diesel generator.
    Applying engineering ingenuity, we set it all up with the help of some kind of mother and a normally closed relay from the Zhiguli and an automatic generator start block.

    Generator autostart module - on the right is a black box with a loop


    On this, almost all the work was completed, and it was time to get home. It took 10 days to install the station.

    The station operates in normal mode, the diesel generator practically does not start. Since the launch of the station (March 1), the diesel generator has been operating for approximately 15 hours. Electricity is supplied around the clock, by the summer we expect an increase in load in connection with the purchase of refrigerators and additional equipment by the villagers.



    Bonus photo panoramic, filmed on a trip just before the closure of the winter road


    PS There is a challenge for cool Hab IT pros: on the Conext ComBox device there is a web interface, on the satellite receiver there is a white IP address, there is a simple TP-Link cable router. Objective: to organize access to the box’s web interface, while access is organized through the team-viewer on a netbook connected to the system. I coped with the task with a separate respect and possible interesting puzzles in the future, already for $ :)

    UPD: Everything was done with the help of one good habracheloveka! Thank you all for your participation and attention!

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