Engineering & Design Services
Power Delivery
MWH provides leading hydropower engineering and design services for building and upgrading substation and transmission lines up to 765 kV safely, efficiently and effectively. We have designed the interconnection of more than 70,000 megawatts of hydropower to power grids in 33 countries on five continents. MWH offers a full range of services for electrical transmission and distribution projects. We provide single-source responsibility for successful hydropower project development and implementation, interconnection for new lines, upgrades and rehabilitation.
Program Management
MWH experts have a proven track record of providing program management services for complex power delivery programs, including:
- Asset management
- Asset optimization
- System expansion and rehabilitation project prioritization
- Project scheduling and resource leveling
- Risk mitigation and management
- Cost forecasting and budget management
Regulatory Requirements, Planning and Permitting
Through effective and efficient project planning, MWH experts provide comprehensive services and expertise in regulatory requirements, planning and permitting to ensure project success, with services including:
- Expertise in local, state and international regulatory requirements
- Feasibility studies
- Power system planning and expansion
- Energy and demand forecasts
- Preparation of tender documents
- Power market surveys
- Negotiation of power purchase agreement
- Electromagnetic studies and AM/FM mapping
- Relay coordination studies
- System studies, load flow and transient stability studies
- Expert witness and public process support
Preliminary Design and Environmental Engineering Services
Our multi-disciplinary design team blends expertise and proven reputation for innovative, quality design and commitment to sustainable solutions, with services including:
- Transmission line routing and corridor identification
- Conceptual transmission conductor and structure designs
- Substation spotting and conceptual layout
- Environmental impact assessment (EA and EIS)
- Route selection and route alternatives due diligence
- Route alternative cost estimating
- GIS and mapping
- Electromagnetic studies & Neutral Earth voltage studies
- Soils investigations and foundations recommendations
- Comprehensive design basis development
Detailed Design
We apply specialized knowledge and technical expertise to design transmission lines and substations, including tailored solutions for:
Substations
- Terrain grade optimization
- Below grade design (grounding and foundations)
- Civil structural design
- Electrical design
- SCADA, relaying and communication systems
- Gas insulated substation design
- Instrumentation and controls
Transmission
- High Voltage AC and DC transmission systems
- Conductor selection and optimization
- Capacity line ratings and line uprating studies
- Structure spotting optimization (using PLS-CADD)
- Underground and submarine AC and DC transmission lines
- Structure design (lattice towers, steel, concrete and wood poles)
- Foundation design (using Fadtools, LPile, Shaft)
Distribution
- Distribution feeder design
- Overhead and underground design
Construction and Construction Management
We offer a full range of high-value, “start-to-finish” pre-construction, construction and construction management services including:
- Construction sequence planning and constructability reviews
- Preparation of construction drawings
- Preparation of procurement specifications and documentation
- Procurement planning and bid management
- Construction monitoring and inspection
- Close out and as-built documentation
Start-up and Commissioning
MWH expertise runs the full lifecycle of a project, including partnering with our clients for project start-up and commissioning including:
- Integrated communications, controls, protection and metering solutions
- Acceptance testing and commissioning