Koltsevaya Substation Goes Live: What It Means for Energy Suppliers
A 500 kV substation in Tashkent region is now energized. Here's what energy suppliers should prepare for and which procurement opportunities may follow.
On November 7, a 500 kV substation called Koltsevaya was energized in Tashkent region. The project was built with World Bank support, according to Gazeta.uz and Daryo.uz. Gazeta.uz reports that 285 km of high-voltage lines were built alongside the substation. Daryo.uz writes that the load redistribution will let the Tashkent thermal power plant stop burning fuel oil. For suppliers, this is a signal: a large operating facility now exists in Uzbekistan's energy sector, and with it comes demand for equipment, services, and consumables.
The context is simple. Koltsevaya relieves pressure on the Tashkent thermal power plant and changes the power supply scheme for the capital and part of the region. The new substation and lines are not just a construction project but years of operation ahead: relay protection, measurements, cable products, spare parts, diagnostics, staff training. Procurement for such facilities usually comes in waves — first commissioning, then routine maintenance and upgrades.
What this means for suppliers
Those who work with energy equipment and grid services will benefit: suppliers of transformers, switchgear, cable, metering systems, diagnostic instruments. Demand will likely also affect maintenance contractors for high-voltage facilities and companies that train personnel. Small businesses should look at adjacent niches — fasteners, insulators, workwear for electrical staff, logistics of oversized cargo.
It's better to prepare in advance. Check whether you have certificates and test reports for equipment of the voltage classes used at 500 kV facilities. If you supply imports, keep origin and conformity documents ready. Energy customers often require experience with similar supplies — gather your references in one place.
No one can say exactly when tenders will appear. But energizing a facility usually precedes a series of procurement notices for operation and retrofitting. Watch announcements in the Energy sector — there are currently 1,006 open lots there as of November 8, 2026, according to TenderLabs data. That's not a forecast for Koltsevaya but the general background: competition in the sector is noticeable, and bids need to be prepared quickly.
What to do now
- 1Check your document package: certificates, test reports, proof of experience. Without them, energy bids are often not even considered.
- 2List your products and services that apply to 500 kV substations and high-voltage lines. Separately note what you have actually supplied.
- 3Set up monitoring of procurement in the Energy sector and related areas — Equipment and Machinery, Construction. Look not only at the title but also at the technical specification.
- 4Prepare bid and commercial offer templates in advance so you can meet submission deadlines.
- 5If you have no direct experience with grid facilities, seek partnerships with contractors already working on such sites. That's faster than waiting for your first solo contract.
One point often missed: your digital signature and platform registration must be ready before a procurement is announced, not after. Check that your access is active and your signature works — preparation takes more time than you think.
TenderLabs can help you track relevant lots and stay ahead of deadlines.
Photo: Daryo.uz