DESIGN & ENGINEERING OF
UTILITY-SCALE SOLAR FARMS
CREATING ROSEC DESIGNS
Design & Engineering of Utility-Scale Solar Farms
Solar farm designs and layouts based on string inverters or distributed central inverters
ROSEC Solar knows:
- The Design Parameters of MW-Scale solar PV plant and how to optimize their values for the project site
- Technology and Factors that influence the Solar Design and Farm Footprint
- Key Performance Indicators of the solar PV Plant
- Efficient PV Array Configuration (tilt angle, orientation, and row-spacing)
- Efficient Plant Layout
- Design with most optimum DC/AC Ratio
- Detailed system losses representative to the site
- Grid constraints (curtailment / power export limit)
We use different simulation software for energy modeling, design optimization and performance assessment of solar PV farms.
ROSEC conducts site-specific engineering to create Plant Layouts that indicate PV Arrays, inverters, MV Switchgears, ESS containers, transmission substation, interface with utility line, weather monitoring station, control room, administrative buildings, security area, main gate, parking area, fence, access road. . .
Inverters and combiner boxes are placed at strategic locations minimizing the DC and AC cable runs which in turn minimize the voltage drops and hence power losses.
ROSEC Solar Deliveres:
- Site Plans
- Plant Layout
- Block / Zone Layout
- Equipment Layouts
- Single Line Diagram (SLD) of the entire system
- SLD of MV AC Collection System (Ring, Radial or Star)
- Single Line Diagram of individual components e.g. combiner boxes or string inverters
- SLD of Auxiliary Power Systems
- Network Diagram of Communication System / SCADA
- Trench design for DC cables and Medium Voltage AC cables
- Grounding Design according to IEEE Std. 2778-2020 – IEEE Guide for Solar Power Plant Grounding for Personnel Protection
- Utility Interface and Protection Drawings
- Control Room design and computer-based displays for monitoring your plant performance
- Weather Monitoring Station
- Marking and Labeling
- Complete BOM/BOQ of the project
Standards & Codes
The design works comply with the following standards:
- National Electrical Code NEC 2020
- IEC TS 62738 2018: Ground-mounted photovoltaic power plants – Design guidelines and recommendations
- IEC 62548:2016: Photovoltaic (PV) arrays — Design requirements
- IEEE 2778™-2020: IEEE Guide for Solar Power Plant Grounding for Personal Protection
- IEC 60364-5-52 – Low-voltage electrical installations – Part 5-52: Selection and erection of electrical equipment – Wiring systems
NEC 2020 Articles
ROSEC Solar is well-experienced with the most relevant articles of the NEC 2020, Article 690: Photovoltaic (PV) Systems and Article 691: Large-Scale Photovoltaic Electric Supply Stations. The other most frequently major articles used in the design of solar PV installations are:
- Article 110: Requirements for Electrical Installations
- Article 240: Overcurrent Protection
- Article 250: Grounding and Bonding
- Article 310: Conductors for General Wiring
- Article 311: Medium Voltage Conductors and Cable
- Article 408: Switchboards, Switchgear, and Panelboards
- Article 705: Interconnected Electric Power Production Sources
- Article 706: Energy Storage Systems, and
- Chapter 9: Tables
Thinking Solar? Let's Talk...
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We are happy to review initial requirements, share technical insights, valuable suggestions and much more…
Helping global clients in desiging and developing Reliable, Optimal, Safe, Efficient, Code-Compliant and Cost-effective PV designs.
