PMGD

PMGD · Distributed generation

Development, engineering and execution of distributed generation projects

Aerial view of a completed solar PV plant in an agricultural valley

SUN & WIND takes part in the technical development and execution of PMGD projects (small distributed generation, up to 9 MW), integrating multidisciplinary engineering, constructability review, civil and electrical infrastructure, supply management, construction, interconnection, testing and commissioning.

Our approach starts from the actual conditions of the site and the point of interconnection, aiming to optimize CAPEX, energy yield, losses, availability, construction schedule and the asset’s operational performance.

DEVELOPMENT AND TECHNICAL FEASIBILITY

Preliminary site assessment
Analysis of land-use and construction constraints
Assessment of access and construction logistics
Survey of existing conditions
Topographic analysis and geotechnical constraints
Preliminary solar resource assessment
Capacity definition and conceptual configuration
Preliminary point-of-interconnection analysis
Identification of required electrical infrastructure
Preliminary energy yield and loss estimate
CAPEX/OPEX estimate
Assessment of technical and construction risks
Technical Due Diligence of projects under development

PV ENGINEERING

Conceptual, basic and detailed engineering
Basis of Design and engineering criteria
Layout optimization
DC and AC capacity definition
Technical selection of PV modules
String vs. central inverter assessment
String configuration
DC network design
AC and medium-voltage network design
Single-line diagrams
Cable sizing
Protection coordination
Grounding systems
Auxiliary services
SCADA, communications and monitoring
IFC engineering and As-Built documentation

CIVIL ENGINEERING AND BALANCE OF PLANT

Surveying and staking out
Earthworks and cut/fill balance
Pad preparation and grading
Design and construction of internal roads
Permanent and temporary access
Drainage and stormwater management systems
Crossings and special structures
Foundations for electrical equipment
Pads for inverters and transformers
Electrical raceways and trenches
Pull boxes and utility crossings
Perimeter fencing and gates
Ancillary works and site restoration

GENERATION SYSTEM

Installation of fixed structures or trackers as designed
PV module installation
DC cabling and termination
Installation of combiner boxes and associated equipment
Inverter installation and mounting
Transformer stations
Medium-voltage collector networks
Auxiliary system integration
Monitoring and communication systems
Torque control and terminations
Installation inspection and testing

INTERCONNECTION INFRASTRUCTURE

Engineering of medium-voltage installations
Internal collection networks
Overhead and underground raceways
Transformation and switching
Medium-voltage switchgear
Protection and metering systems
Grounding
Integration with interconnection infrastructure
Technical interface coordination
Preparation of technical documentation required for interconnection
Technical support during energization and commissioning

PROCUREMENT & SUPPLY CHAIN

Preparation of technical specifications
Technical Bid Evaluation
Technical approval of equipment and suppliers
Review of datasheets and manufacturer documentation
Interface control between supply packages
Manufacturing and deliverables follow-up
Expediting of critical equipment
Long Lead Items tracking
Inspection and receipt of supplies
On-site materials management
Traceability and technical documentation control

CONSTRUCTION | BOS

Mobilization and temporary facilities
Site Preparation
Civil works and earthworks
Roads and drainage
Foundations and pads
Mechanical installation
PV installation
DC networks
AC and MV networks
Electrical grid connection infrastructure
Grounding
SCADA and communications
Subcontract management
Multidisciplinary construction coordination
Production and productivity control

QA/QC & HSE

Project Quality Plan
Inspection & Test Plans
Material Receiving Inspection
Construction protocol control
Civil, mechanical and electrical inspections
NCR management and corrective actions
Document control and traceability
Quality dossiers
On-site HSE management
Control of critical activities
Safety and quality KPI tracking

TESTING & COMMISSIONING

Mechanical Completion
Pre-energization inspections
Continuity and insulation testing
Polarity verification
Grounding tests
MV equipment testing
Protection verification
Inverter functional testing
Communications and SCADA verification
Progressive energization
Commissioning
Performance Verification
Punch List and close-out of open items
Handover and delivery of final dossiers

ENGAGEMENT MODEL

DEVELOPMENT SUPPORT
ENGINEERING
PROCUREMENT
BOS CONSTRUCTION
GRID CONNECTION
COMMISSIONING
HANDOVER

EXECUTION OBJECTIVES

CAPEX
SCHEDULE
CONSTRUCTABILITY
ENERGY YIELD
LOSSES
QUALITY
SAFETY
AVAILABILITY

Let’s talk about your next project

From a specific need to the full execution of a project, SUN & WIND structures solutions focused on technical control, constructability and results.

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PMGD · Distributed generation