Projects
Five projects, five written references
From a 15 kV MV cable line in Bolewice completed in 18 days to a PLN 2.4m (net) contract for ENEA Operator in which we led the consortium. We describe every project exactly as the client confirmed it: scope, cable types, lengths, dates and values.
Our work
Figures from reference letters, not from a brochure
Since 2024 we have completed five medium- and low-voltage network projects for three clients: the distribution system operator ENEA Operator and two power-sector contractors, ZILINSKIS and PIWOWARSKI. We have built 15 kV and 20 kV MV cable lines, undergrounded overhead lines, installed ZKSN MV cable junctions, erected MV/LV transformer substations and dismantled old overhead networks.
Each project page gives a table of contract data, the key quantities, a scan of the reference letter and an account of how the works went. Every figure comes from the client's letter — we publish the references in full, to view and download as PDF.
- Distribution system operator, general contractors, subcontracting — different roles on different jobs
- MV lines in XRUHAKXS and NA2XS(F)2Y cable, directional drilling, junctions, substations
- Sites in the Lubuskie, Greater Poland and Kuyavian-Pomeranian voivodeships
All projects
Choose a project
Each card leads to a detailed case study with the client's reference letter.
ENEA Operator — MV 20 kV network, Niegosławice
Lubuskie Voivodeship
Toruń — MV 15 kV line undergrounding
Kuyavian-Pomeranian Voivodeship
Konin — RS Maliniec 15 kV switching station
Greater Poland Voivodeship
MV/LV network rebuild — 8 villages
Greater Poland / Lubuskie Voivodeships
Bolewice — MV 15 kV cable line
Greater Poland Voivodeship
Where we have worked
Our projects on the map of Poland
Our office is in Kraków; we go wherever the job is, with our own machinery and transport.
- 1ENEA Operator — MV 20 kV network, NiegosławiceENEA Operator · PLN 2,405,200
- 2Toruń — MV 15 kV line undergroundingZILINSKIS · PLN 682,000
- 3Konin — RS Maliniec 15 kV switching stationZILINSKIS · PLN 642,000
- 4MV/LV network rebuild — 8 villagesPIWOWARSKI · PLN 486,120
- 5Bolewice — MV 15 kV cable linePIWOWARSKI · PLN 208,800
- BIGBUD office — Krakówul. Rybitwy 22 lok. 318, 30-722 Kraków
In numbers
Five reference letters added up
Summary
All five projects at a glance
Data as stated in the reference letters. Net values; periods from start to completion of the works.
| Client | Location | Scope | Net value | Period |
|---|---|---|---|---|
| ENEA Operator sp. z o.o. BIGBUD — consortium leader | Stara Jabłonna, Nowa Jabłonna, Zimna Brzeźnica (Niegosławice municipality) | 3 MV/LV substations, MV cable line 3 × 5,715 m, 772 m of LV cable, 8.266 km of MV overhead line and 89 pole positions dismantled | PLN 2,405,200 | 16 Oct 2025 – 28 May 2026 |
| ZILINSKIS Sp. z o.o. | Toruń — GPZ Toruń Podgórz – Włocławek 3 line | Undergrounding of a 15 kV line: 5,725 m of 3× XRUHAKXS 1×150 mm², 2 ZKSN junctions, ~600 m of drilling | PLN 682,000 | 30 Sep 2024 – 25 Nov 2024 |
| ZILINSKIS Sp. z o.o. | Konin — RS Maliniec | Feeder lines for a 15 kV switching station: 2,890 m + 2,520 m of 3×XRUHAKXS, 3-way ZKSN junction, ~350 m of drilling | PLN 642,000 | 14 Aug 2025 – 20 Mar 2026 |
| PIWOWARSKI P.S.A. | 8 villages incl. Międzychód and Bolewice | MV/LV network rebuild: 5,606 m of 3×NA2XS(F)2Y 1×150/25 mm², ~550 m of drilling and pipe jacking | PLN 486,120 | 16 Dec 2024 – 28 Mar 2025 |
| PIWOWARSKI P.S.A. | Bolewice | Construction of a 2,350 m MV 15 kV cable line | PLN 208,800 | 25 Nov 2024 – 12 Dec 2024 |
Looking for a contractor with a proven track record?
Send us the design or bill of quantities and we will reply with a quote and schedule. We can attach our references to any tender bid.