Operation and Maintenance Plan
Solar O&M Overview for:
Northen Gateway Renewables, LLC &
Southern Gateway Renewables, LLC
Submitted by:
Will Thompson
Senior Vice President
Contact:
wthompson@nexamp.com
978-653-4448
101 Summer Street, 2nd Floor
Boston, MA 02110
Nexamp Asset Management Services
Solar PV Operations & Maintenance
Experience, Assets & Leadership
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Overview
Nexamp’s veteran team of power and solar professionals understands what it takes to
manage, maintain and deliver maximum revenue from solar plants. We provide full
spectrum asset management and operations and maintenance services for our own, as
well as third party systems. Our team actively monitors and provides preventative,
corrective and condition-based maintenance for over 180 MWs of PV at 150 commercial,
residential and government owned plants.
Service Offerings
The following services are typically included in either our management or services
agreements. Examples of our most commonly requested services include:
• 7/365 active monitoring and tailored performance reporting
• Renewable energy attribute management, aggregation and sales
• Full spectrum service and scheduled maintenance
• Warranty and spare parts management
• Performance guarantee management
• Site storm water controls maintenance and improvements
• Array and overhead vegetation management
• Original equipment manufacturer warranty support
• Third party commissioning and performance testing
• Aerial infrared inspections, photography and analysis
• Module snow removal from ground mounted and carport arrays
• Module washing in accordance with manufacturer requirements
Figure 1. Compromised string located through drone infrared inspection.
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Scope of Work
MONITORING AND REPORTING
• Seven-day, Nexamp Energy Center (NEC) support and real time monitoring of
owner’s data acquisition system (DAS) and alert management system.
• Monthly reporting of actual performance verses PVSyst performance model.
ANNUAL SCHEDULED MAINTENANCE
• Visually inspect all feeder terminations for corrosion.
• Visually check power terminations/connections including DC combiner boxes, DC
and AC disconnects, inverters and PV modules and re-torque as necessary.
• Test ground continuity and correct any unsafe or abnormal issues.
• Check all fuses in inverters, combiner boxes, and disconnects (AC&DC).
• Test and record voltage and amperage of the arrays at the string level and
provide data values in summary report.
• Inspect combiner boxes, disconnects (AC&DC), and inverters with an infrared
camera to detect damage, hotspots, loose connections, etc.
• Check mechanical and structural integrity of the system.
• Inspect and clean inverter heat sinks and replace inverter air filters where
applicable as necessary.
• Check and replace unserviceable or missing system labeling as necessary.
• Remove accumulated trash and debris. Check arrays for shading, including such
shading caused by vegetation.
• Check modules for excessive dirt and debris.
• Provide documentation to include summary report of findings including actions
taken and recommendations for additional maintenance or repairs.
REPAIR SERVICES
• Respond to alarms, alerts, and service requests pertaining to the Facility within
24 hours of such alarm, alert, or service request, as personnel safety and
weather conditions permit.
• Provide all warranty, spare parts and other repair or maintenance related
activities on a time and materials basis.
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Leadership, Background,
Experience & Qualifications
Will has over 25 years of construction know-
how, with 13 focused in renewables
implementation and life cycle management. He
is a NABCEP Certified PV Installation
Professional, FAA Certified Remote Pilot, and
holds various licenses and registrations in MA,
RI and NY. Will earned a BS in environmental
engineering from Tufts University and an MS in
homeland security from Endicott College. Will is
a U.S. Army Iraq War veteran who continues to
serve in the U.S. Coast Guard Reserve.
Skip manages all scheduled and un-scheduled
maintenance, warranty and OEM support
services, as well as new system
commissioning. Skip has over 15 years of
residential development knowledge and 10
years of experience installing and maintaining
PV, solar thermal, geothermal and micro wind
systems. Skip graduated from the Tilton School
and is a MA licensed Construction Site
Supervisor.
Brad has nine years of experience in the
renewable energy industry and over 15 years in
information technology systems. Brad earned a
BA from the University of Massachusetts and a
graduate certificate in PV Design and
Installation from San Juan College. He holds a
NABCEP Certified PV Entry Level certification,
PMP project management certificate from PMI,
and is also a Certified Novell Network
Engineer.
Bo’s team drives revenue recognition, REC
trading, state and federal program compliance,
and contract management for Nexamp’s
growing energy portfolio. Bo has over five years
of experience in renewable energy, energy
efficiency, and renewable portfolio standard
policy development. He earned a BA in
Biochemistry from Middlebury College.
Will Thompson
SVP, Nexamp
Asset Management
Services
Nexamp co-founder
Skip Provost
VP, Operations
& Maintenance
Bowen Burditt
Director, Asset
Management (AM)
Brad Zollner
VP, Nexamp Energy
Center (NEC)
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Current Managed Asset Base
• Total Nexamp owned MWs: 107 (DC) at 85 sites
• Total third party owned MWs: 25 (DC) at 63 sites
• Service Area: CA, CT, DE, GA, MA, MD, NH, NY, RI and VT
• Facility Capacities: 3kW – 7.5MW (DC)
• Facility Ages: 2007-2019
Partial Project List – Systems Currently
Under Management
Project State Customer Type CAPACITY
(MW DC)
YEAR in
Operation
GE Aviation
Newark DE Current by GE Ground &
Carport 0.89 2016
Terrapin Branch MD Nexamp Ground 1.19 2018
Barnstable WPCF MA Town of Barnstable Ground 0.82 2011
Boston Properties
Bay Colony MA Healthy Planet
Partners Carport 0.84 2014
Newfield Solar NY Nexamp Ground 7.48 2019
Richmond Solar RI Nexamp Ground 0.50 2015
Harrison Solar NY Nexamp Rooftop 0.65 2016
President
Container NY Current by GE Ground 2.09 2015
Bainbridge Solar GA Nexamp Tracker 1.25 2019
PVN Milliken CA Nexamp Landfill 3.17 2017
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Reporting and Monitoring
REPORTING
Nexamp provides customer tailored performance reporting of actual versus modelled
electricity production. Reports may be generated on a monthly, quarterly, annual and
lifetime basis, to include weather adjusted values, financials, etc. Performance Reports
are generated using excel data generated by the data acquisition system (DAS) meters
and utility account data, where available. Scheduled O&M reports are generated in
Word and sent via email. Reports for repair services are logged in our proprietary asset
management platform (described below) and forwarded automatically via email upon
resolution.
MONITORING
Nexamp provides system performance monitoring via the data acquisition system (DAS)
PowerTrack which is a hardware and cloud-based software solution offered by the third
party monitoring service provider AlsoEnergy (AE). AE leads the industry in
independent monitoring and fleet management software and analytics. PowerTrack
provides power and production data, environmental conditions, alert messaging, and
equipment parameters from the plant’s inverters, subarrays and production meters. It
also serves as the third party verifier of actual energy production required for the
generation and sale of renewable energy attributes. A screenshot of the end-user
interface is shown below for a Nexamp array in Maryland. A detailed video tutorial is
available at: https://www.youtube.com/watch?v=LasmmYVi_zo
Figure 3. AlsoEnergy PowerTrack data acquisition system user interface.
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PROPRIETARY ASSET MANAGEMENT PLATFORM
In addition to the third party monitoring systems described above, the NEC tracks and
manages fleetwide maintenance and asset management activities, outages, system
analytics, automated reporting and organizational contacts using Nexamp’s own
proprietary software platform.
Figure 4. Map view of Nexamp’s managed asset portfolio.
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Why Nexamp?
EXPERIENCE
• Capability: Nexamp has an established track record of expertise in solar system
maintenance, original equipment manufacturer repair and electrical construction
and operations, with trained electricians on staff and a host of supporting
subcontractor relationships based throughout our U.S. markets.
• Expertise: Your plant is monitored by the Nexamp Energy Center. Our staff of
competent and proactive analysts track production in real time, detect faults and
mitigate system issues every day including weekends and holidays.
• Technology: Our personnel use the best available testing equipment to ensure
peak performance during every maintenance inspection we perform. Testing is
completed using certified tools from Kipp & Zonen®, Solmetric®, Seaward®,
SolarBOS® and FLIR®, with results incorporated into our maintenance reports.
• Financial stability: Nexamp has proven itself in the solar business for over 12
years, has a solid financial standing and maintains a strong balance sheet.
• Customer service: We provide the same expert level of care, rapid response
and attention to detail that we apply to Nexamp’s owned and operated assets.
SAFETY
Safety is of the utmost importance to Nexamp. We create and maintain site specific
health and safety plans tailored to each plant. Members of our team hold either OSHA
10, 30 or 40 level certifications and all are CPR/First Aid trained. Our employees
complete a variety of electrical safety and code related training on an ongoing basis and
always wear the appropriate personal protective equipment.
Figure 5. The Nexamp Energy Center
In addition, Nexamp's provides first respondent
training before construction begins on the facility
and after construction is completed. Nexamp will
work with the County and Town to schedule
these meeting and site visits accordingly.
Please see the following example agenda for
training provided by Nexamp:
5MW AC Solar Only Facility
First Respondent Training
Report Date: Nexamp Page 1
• Meeting attendance sign in
• Site Access.
Gate locations, Access points,
Lock key locations
• Site Description.
PV information: Site Mw, number of panels.
• Site Layout
Site features, perimeter and center road layout, perimeter fence.
• Site Equipment
Number of inverters, transformers and switchgear, combiner box locations
• Start up and Emergency Shutdown Procedures
Utility and Site load break switches on site with dual utility recloser units,
Switchgear and inverter disconnects at both pad locations.
• Meeting Q&A
Northern Gateway Renewables, LLC &
Southern Gateway Renewables, LLC
Training Meeting Agenda:
Report Date: Nexamp Page 2
• NEXAMP FIRST RESPONDERS TRAINING SIGN-IN SHEET
Project: Northern & Southern Gateway Renewables, LLC Meeting Date: TBD
Facilitator: Nexamp Team Place/Room: On site
Name Title Organization
5MW AC Solar Only Facility
First Respondent Training