Total ramming time for 1 900 steel profiles –3 days.

Total time for ramming test –1 days.

Total ramming time for 3600 steel profiles –10 days.

Mokresh Solar Park is located in the outskirts of the village Mokresh, near the town of Lom (North Bulgaria). The plant was started in 2010 and is the second large scale project in the region. At the time of connection in the beginning of 2011 Mokresh Solar Park is one of the largest plants in the country. Stenli-03 Ltd as subcontractor and partner of the main EPC through several contracts was assigned the full construction of the solar plant excluding some special civil works.

The grid connection is made to a new tower of an existing 20 kV power line. Stenli-03 Ltd is also the main contractor for the reconstruction of 3.3 km of the interconnecting line to the village substation.

Construction schedule:

1. stage - 1 MWp - in operation - connected October 2010
2. stage - 2 MWp - launched March 14th 2011
3. stage - 3.1 MWp - launched and connected in mid April 2011
4. stage - 4.2 MWp - in operation - July 2011

• PV Module Type: Hyundai, Mitsubishi
• Inverter Type – Central type, 3x 1MWp, produced by TMEIC (Toshiba Mitsubishi – Electric Industrial Systems Corporation); SMA distributed inverters for last stage
• Support Structure – Fixed Type, produced by Corus, Hill & Smith

This is a land based project for a Greek EPC company using a structure in combination of steel and aluminum from a Greek manufacturer of structures for photovoltaic plants. Our Scope of Works covers ramming of more than 10 500 steel profiles for double-pole structure at highest precision requirements using two machines Orteco 800 Smart and one machine Orteco 1000 HD owned by our company and with our professionally trained personnel.

The project is located in the premises of Lom, Bulgaria where is also the main headquarters of Stenli-03 Ltd. Construction took place in two stages: Stage 1 of 1050 kWp– connected and operational in 2010 Stage 2 of 4 MWp – extended and operational in May 2011 Stenli-03 Ltd is appointed as main construction contractor for this first large PV plant in Northwest Bulgaria. As a major electrical contractor in Northwest Bulgaria our main responsibilities for this project cover double 20 kV underground lines to Lom town substation with overall length of 2 km, plant substation and installation of all electrical equipment in the plant. All civil works are carried out by construction companies owned by the investor.

• Polycrystalline solar modules: Yingli
• Inverters: IDS Woodward AG
• Metal constructions by Strimona Ltd

Scope of services: installation of ground screws in difficult terrain with specialised attachments for Orteco 1000 HD. This was one of the most demanding and complicated projects we have participated, so far. Project site is within an industrical plant, where access to machinery and personnel is very limited, especiallyf or foreigners. Soil is a former industrial site and filled with various materials, which obstruct the installation process or affect the overall accuracy. Project started in end of february 2014 with 40 cms of snow on the field.

Scope of works: ramming of cold-formed profiles for aluminium support structure in pre-drilled holes.

This plant is ordered by one of the major Romanian EPC players. The soil on site is not stable enough to bear the loads of the structure when standard rammed profiles are installed. For this reason the piles are installed in predrilled holes and concrete is poured afterwards.

This is a land based project for a large European EPC contractor situated near the city of Vratsa, Bulgaria. Stenli-03 Ltd is responsible for unloading and distribution of steel structures, GPS positioning, ramming and installation of steel structures and installation of modules. Unloading and distribution activities are handled with 8 telehandlers and forklifts Steel structure assembly personnel are equipped with 40 Hilti cordless impact wrenches and 10 torque wrenches for quality assurance of already installed structures. Entire personnel are equipped with personal protective equipment suitable for their work activities and special purpose personnel are well trained and equipped with special safety equipment for their job. GPS positioning is performed with two high quality survey instruments type Trimble R8. Ramming is performed with two brand new ramming machines type Orteco 800 Smart and one brand new ramming machine Orteco 1000 HD, a good choice for difficult terrain and perfect for hard soils with its extra powerful hammer. All machines are a top in their class and provide extra high daily performance. The company has 4 ramming teams which allow rotating shifts to maximize ramming machines performance or replace teams if needed. Time for completion of all ramming, steel structure installation and PV modules installation for all 25 MWps – 55 days.

This is a land based project for a Portuguese manufacturer of steel structure for photovoltaic plants focussing primarily on consultancy and management as well as carrying out metal structure projects and building photovoltaic plants. Our Scope of Works covers installation of 1000 steel structure tables and 21 000 photovoltaic modules. Stenli-03 Ltd has provided over 40 workers equipped with all relevant HSE tools & equipment and high quality HILTI instruments in order to finish the plant in shortest times.

Estimated duration of the project – 20 days.

Scope of works: ramming of IPE profile for aluminium support structure.

Scope of services: ramming of steel profiles for aluminium support structure