The technical requirements for a wind farm tender with Energocom (~105 MW) specify an onshore, land-based power plant. Turbines must be commercial, proven models, new at the time of installation (reconditioned/second-hand equipment is not allowed).
Wind turbine requirements include IEC Class II or III turbines suitable for Moldova's wind conditions, with a rated power per turbine ≥ 3 MW (4-6 MW commonly used), a rotor diameter ≥ 100 m, hub height ≥ 80 m (120-140 m recommended), and a minimum turbine warranty of 10 years.
The electrical and control system must include a SCADA system with remote access and integration with Moldelectrica, support active power curtailment, and follow the Moldova Grid Code for voltage and frequency regulation, including protections for overvoltage, undervoltage, ROCOF, and anti-islanding.
Grid connection will be at 110 kV or 35 kV, depending on the site, and requires a Grid Connection Permit from Moldelectrica/Premier Energy. The developer finances 100% of the connection infrastructure.
Mandatory studies and permits include a wind study (≥ 12 months, met mast or LiDAR), an Environmental Impact Assessment (EIA), Urban Planning Approval, and Civil Aviation Obstacle Clearance.
The maximum tariff offered is ~1.50 MDL/kWh (excl. VAT). The contract duration is 15 years with Energocom with a Commercial Model of Competitive Feed-in-Premium.
Typical turbine models proposed include Vestas: V136, V150 (3.6–5.6 MW, hub height 112–166 m, rotor 136-150 m); Siemens Gamesa: SG 145 / 155 (4.5–6.6 MW, hub height 110–140 m, rotor 145-155 m); GE Vernova: Cypress 158 / 164 (4.8-6.1 MW, hub height 120–161 m, rotor 158-164 m); and Nordex: N133 / N149 / N163 (4.0–6.0 MW, hub height 105–163 m, rotor 133-163 m). The tender is optimized for medium-wind zones. The best-performing wind projects use large rotor + tall towers + 4–6 MW turbine units.
Key Entities Referenced
Wind Farms: The subject of the technical requirements, referring to onshore wind farms.
Energocom: The entity involved in the tender for wind farms, potentially a buyer or partner.
Moldelectrica: The electrical grid operator in Moldova, requiring SCADA system integration and defining the Moldova Grid Code.
Moldova Grid Code: The regulatory standard for voltage and frequency regulation related to grid connection in Moldova.
Environmental Impact Assessment (EIA): A mandatory study required for wind farm projects.
TECHNICAL REQUIREMENTS – WIND FARMS (Tender with Energocom, ~105 MW)
1) Type of Power Plant
- Onshore wind farms (land-based).
- Turbines must be commercial, proven models, not prototypes.
- Reconditioned or second-hand equipment is not allowed.
- All equipment must be new at the time of installation.
2) Wind Turbine Requirements
Turbine Class: IEC Class II or III (suitable for Moldova’s wind conditions)
Rated Power per Turbine: ≥ 3 MW recommended (4–6 MW commonly used)
Rotor Diameter: ≥ 100 m
Hub Height: ≥ 80 m (120–140 m recommended)
Turbine Warranty: Minimum 10 years
3) Electrical & Control System Requirements
- SCADA system with remote access and integration with Moldelectrica.
- Turbines must support active power curtailment.
- Voltage & frequency regulation must follow Moldova Grid Code.
- Required protections: overvoltage, undervoltage, ROCOF, anti-islanding.
4) Grid Connection
- Connection at 110 kV or 35 kV depending on site.
- Requires Grid Connection Permit from Moldelectrica / Premier Energy.
- Developer finances 100% of connection infrastructure.5) Mandatory Studies & Permits
Wind Study (≥ 12 months, met mast or LiDAR)
Environmental Impact Assessment (EIA)
Urban Planning Approval
Civil Aviation Obstacle Clearance
6) Commercial Terms
Maximum Tariff Offered: ~1.50 MDL/kWh (excl. VAT)
Contract Duration: 15 years with Energocom
Commercial Model: Competitive Feed-in-Premium
7) Typical Turbine Models Proposed
Vestas: V136, V150 (3.6–5.6 MW, hub height 112–166 m, rotor 136–150 m)
Siemens Gamesa: SG 145 / 155 (4.5–6.6 MW, hub height 110–140 m, rotor 145–155 m)
GE Vernova: Cypress 158 / 164 (4.8–6.1 MW, hub height 120–161 m, rotor 158–164 m)
Nordex: N133 / N149 / N163 (4.0–6.0 MW, hub height 105–163 m, rotor 133–163 m)
Conclusion:
The tender is optimized for medium-wind zones. The best-performing wind projects use:
Large rotor + tall towers + 4–6 MW turbine units.