Industrial 4.95 MW solar plant with energy storage in Odesa region: LK Energy case study
The task
Build an industrial 4.95 MW solar plant with energy storage on a site of about 10 hectares, connected to the grid operator's network — turnkey, with single responsibility for the plant's entire electrical scope: from design and switchgear to installation and grid connection.
In engineering terms this meant aligning generation with the grid-connection conditions, designing a distributed medium-voltage switchgear infrastructure, and providing energy storage and correct protection — so the plant would pass approvals and operate safely on the grid.
LK Energy's solution — the plant's electrical scope turnkey
As a design-and-manufacturing company, LK Energy took on the entire electrical scope: the detailed design (a complete set of working documentation), switchgear of its own manufacture, installation and grid connection. One company responsible for all the electrics — the client did not have to stitch the plant together from several contractors.
Design
A complete set of working documentation for the plant's construction: electrical solutions, relay protection and automation, the structural part, PV and storage sections. LK Energy acted as the project's chief engineer.
Equipment of our own manufacture
The most critical part of the plant — the medium-voltage switchgear (switchboards, panels, assemblies) — is LK's own manufacture. The plant has five packaged transformer substations (KTP) with TMG-1250 transformers. Quality, schedule and equipment compatibility are controlled in one place.
Installation and storage
The PV part: 10,128 operating modules (+ reserve) on 214 tables (about 3,776 foundation piles), 45 main grid inverters (+2 reserve) totalling 4,950 kW AC, with a DC/AC ratio of 1.30. The energy storage system (BESS): two 2.5 MVA power conversion units and LFP storage containers totalling ~20 MWh.
Grid connection
Connection to the distribution system operator's grid under the issued technical conditions. LK Energy handled the electrical part of the process — from the connection design to the approvals.
What we designed, manufactured and installed
| Component | Value |
|---|---|
| Grid-connection capacity (AC) | 4.95 MW |
| PV module capacity (DC) | 6,435.8 kW |
| PV modules | 10,128 operating (+ reserve) |
| Grid inverters | 45 main + 2 reserve (4,950 kW total) |
| DC/AC ratio | 1.30 |
| Tables / foundation piles | 214 / 3,776 |
| Packaged substations (KTP) | 5× with TMG-1250 transformers |
| MV switchgear and panels | LK's own manufacture |
| Storage (BESS) | ~20 MWh LFP, 2× 2.5 MVA PCS |
| Site | ~10 ha |
The result
- The plant's entire electrical scope — from one company. LK Energy delivered the design, its own switchgear, installation and grid connection — without stitching the plant together from several contractors.
- The switchgear infrastructure is our own manufacture. The KTP substations and switchboards for the plant were made at LK's own factory, not bought in.
- Scale and level of responsibility. 4.95 MW with storage is a level of project that shows in every panel and every connection node.
Site photos
More photos and videos of the site — on the case page: Industrial 4.95 MW solar plant + BESS.
Frequently asked questions (FAQ)
Do you build turnkey plants like the one in this case study?
Yes — the entire electrical scope: detailed design, switchgear of our own manufacture, installation, grid connection, service. PV modules come from a Tier-1 manufacturer; inverters are a proven brand.
Is the switchgear on site your own?
Yes — we manufacture the KTP substations, switchboards and panels for the plant at our own factory. That means control of quality, schedule and price in the plant's most critical part.
Why does the plant need storage (BESS)?
Storage makes it possible to shift daytime generation in time and smooth the peaks (a buffer at a high DC/AC ratio). What it delivers on a specific site is calculated individually; backup power during outages requires a separate configuration and is not provided by merely installing a BESS.
Can a similar solution be delivered for our site?
Yes — we size the configuration for your consumption profile, site and connection voltage class.
→ Get a similar plant sized for your site — or download the checklist "How to choose an industrial solar contractor" (the form is below on the page).
See also: Building a solar power plant · Industrial solar plants for businesses · Industrial solar plant project: scope & documents · Industrial solar plant for self-consumption
Need an engineer’s advice?
Have a task involving power supply, switchgear or solar plants — write to us and we’ll answer to the point.
+380 67 104 94 91Choosing a solar contractor: where budgets get cut and how to spot it before you sign
- an 11-point checklist of where costs get trimmed in a solar plant project;
- two illustrative examples from service practice — in plain language;
- what to check in a contractor’s proposal before the contract.
Author — Viacheslav Yurdyk, quality engineer at LK Energy Group. 8 pages.