Engineering Services for Generation Interconnection Applications

ENGINEERING SERVICES FOR
GENERATION INTERCONNECTION
APPLICATIONS
EN Consulting offers comprehensive engineering
services to support interconnection applications
for power generation projects. Our highly-qualified
team of engineers has decades of experience,
many dating back to the early days of deregulation,
and tremendous knowledge of the technical
aspects of Open Access Transmission Tariffs
(OATT) throughout the country. EN Consulting
has supported preliminary screening analysis
and interconnection applications through
interconnection agreements for projects ranging
from less than 20 MW to 1,600 MW.
SERVICES:
Review site interconnection options and
capabilities:
• Research transmission facilities
• Conduct preliminary assessments of connectivity
• Estimate capability for solar projects
Perform power-flow screening analyses:
• Identify and model generator interconnection
queue projects
• Acquire power-flow case and supplemental data
needed from Transmission Service Provider
(TSP) or Transmission Owner (TO)
• Perform power-flow studies to assess all-lines-in
(N-0), N-1 and N-1-1 contingency conditions
• Confirm interconnection capacity at POI is
sufficient
• Estimate direct-connect and network upgrade
costs
www.entrustsol.com
Prepare interconnection request applications:
• Collect electrical/physical characteristics of
proposed equipment
» Generators and related equipment inverters
» PV panels
» Transformers (step-up and collector substation)
» Collector system
» Interconnection substation
• Produce calculations/models
» Power-factor calculations
» Impedance calculations
» PVsyst model
» Power flow, short circuit, and stability/dynamics
models
• Produce drawings
» One-line diagram
» Site layout
• File applications
» Prepare and submit data forms and agreements
» Calculate study deposit
» Coordinate interconnection request
Feasibility Studies (FES):
• Provide technical support for scoping meeting
• Assemble working and verified modeling data
• Analyze draft study report results
• Represent client at results meeting
System Impact Studies (SIS):
• Review technical aspects of agreement
• Initiate/support materiality reviews
• Provide updated project data
• Obtain additional/updated data from equipment
manufacturers
• Assemble working and verified dynamics
model data
• Respond to TSP questions
• Review and analyze draft study report
• Participate in results meeting
Facilities Studies (FS):
• Review/assist with technical aspects of
agreement
• Participate in the FS kickoff meeting
• Provide technical information
• Perform the FS to facilitate progress
• Review draft study and interpret results
Interconnection Service Agreements (ISA):
• Help negotiate ISA
• Prepare technical exhibits and narratives for
ISA and Construction Service Agreement
• Review cost estimates, work scopes, and
deposit security requirements
• Identify jurisdictional legal counsel
• Provide technical support
www.entrustsol.com