HomeMy WebLinkAboutEnfield OM Scope of Work
Property Operation &
Maintenance Plan
Property Operation & Maintenance Plan for Three Sites
NSF Enfield Site 1, LLC
NSF Enfield Site 2, LLC
NSF Enfield Site 3, LLC
Property Maintenance and Housekeeping
Observation and review of the property and planting buffer to include tree, vegetation and grass trimming to prevent obstruction of the solar arrays as well as access and egress of the
site.
Clearing of snow on an as-needed basis in and around the electrical equipment requiring inspections.
Full Site Visual Inspection
PV Panel Condition
Inspect for cleanliness, cracked/chipped/scratched/ shattered panels, fading/discoloration, burn marks, seal condition, frame damage or rust
PV Mounting Structure
Inspect mounts and mounting structures (loose panels, loose rack/clips missing hardware, rusted bolts, flashing issues, ballast condition, rack anchor condition)
PV Array Ventilation
Inspect conditions under panels, remove of any large debris or pests; visual check to ensure maximum ventilation under panels
PV System Foundations
Ground mount arrays (visual inspection of grounds and vegetation, identify issues related to mud, water pooling, soil erosion)
Balance of System
Inspect conduit runs (separated/cracked conduits, misaligned wire runs)
Inspect panel interconnectivity and string lines (wire/cable wear, wire fading, chewed wire due to pests, identify loose/detached wires)
Inspect junction/combiner enclosure(s) condition (seals, rust, damage, locks)
Inspect electrical equipment enclosure(s) (seals, rust, damage, door condition, locks, equipment pad(s))
Inverter(s)
Inspect inverter structure(s) and enclosure(s) (seals, rust, damage, door condition, switch/handle condition, locks)
Inspect inverter equipment pad(s) (cracks, base damage, soil erosion)
Data Acquisition System (DAS)
Weather Station Condition (alignment of irradiance sensor, condition of wind and temperature meters)
DAS device condition (screen, seals, rust, damage)
Shading Conditions
Visual inspection to identify any shading issues, preventive care if shading caused by nearby vegetation)
System Security
Visually inspect fence line or confinement structures for wear, damage, breach, vandalism, or problems
Visually inspect any electronic surveillance equipment (cameras, alarms, etc.) and identify if operating.
Check condition of any locks, chains or other protection measures preventing unauthorized access to the system
Site Visit(s)
Service Reports: Include details of preventative maintenance work, such as electrical measurements, meter readings, thermal images, and system testing results.
Include non-conformance reports to identify potential short-term and long-term power production issues
Performance Report(s) (Additional Service)
Performance Reports: Provide analysis of monthly system/inverter performance against weather adjusted performance metrics. Identify and document any known production loss issues.
Inverter Preventative Maintenance
Conduct preventative maintenance in accordance with manufacturer specifications
Clean and vacuum enclosure, vents and heat sink / remove any identifiable debris and clean any accumulation of dust
Change air filters according to manufacturer specifications (filters are billed at cost, installation is included in O&M fees)
Check fuses and switchboards (visually inspect for signs of corrosion/burning of components)
Check wiring (visually inspect for breaks, deterioration or signs of corrosion/burning, check cable wire protection)
Warranty Enforcement
Make and coordinate claims for reimbursement and/or replacement under any available warranty from manufacturers, installers or other similar entities relating to the System
String Level Voc, DC Operating Current
Perform testing to measure the open circuit voltage (Voc) and operating current of each string in the system.
Analyze and document any anomalies that effect system performance and propose correct actions if necessary
String Level IV Curve Tracing (Additional Service)
Perform string level IV Curve tracing with a minimum of 400 w/m2 irradiance
Analyze and document any anomalies that effect system performance and propose correct actions if necessary
Thermal Imaging Combiners, Inverters and Disconnects
Thermal imaging of combiners, inverters and disconnects by a trained thermographer
Analyze and document all images taken, identify any potential hot spots and propose correct actions if necessary
System Performance Monitoring: (system login information required)
Using the DAS, monitor on a daily basis, the day-to-day system output and performance
Non-conformance: Upon notice from System Asset Manager or the DAS that the system is not performing in accordance with the specifications as set forth in the Alert Service Request section