Independent Engineering Versus Owner’s Engineering

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When companies do not have in-house engineering—or when an…
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Best Practices Versus Code Compliance

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Technical due diligence is essential to solar project success…
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Importance of Accurate As-Built Drawings

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As an Owner’s Engineer, PV Pros often supports clients by making…
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Climate-Specific Design - Risk vs Value Engineering

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Mother Nature provides an unlimited source of clean energy from…
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Solar Photovoltaic (PV) Connector Mismatch

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PV connector mismatch is one of the most common solar project…
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Optimizing I-V Curve Tracing Activities

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Through our work as an Owner’s Engineer, PV Pros has extensive…
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Using Aerial Imaging in Lieu of Boots on the Ground

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The strategic and efficient use of resources for PV system commissioning…
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When to use PVsyst, HelioScope, and SAM

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At PV Pros, our project managers and engineers use photovoltaic…
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What is Technical Debt

What is Technical Debt?

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Technical Debt is the cost to the system owner as a result of…
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3rd Party Drawing Reviews Reduce Risk

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PV Pros has been helping our clients de-risk in their assets…
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Technical Due Diligence for Solar Purchase and/or Acquisitions

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PV Pros has been helping our client’s de-risk in their assets…
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The Cost of Quality – A Solar IE’s perspective

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There is a well-known business adage called the “Cost of Quality”.…
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Spring Time for Preventive Maintenance

Under-Performance - Part 2: Soiling, Snow, & Shade

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Modules can underperform for a variety of environmental and non-environmental…
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Under-Performance - Part 1: The Sun's Potential

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Modules can underperform for a variety of environmental and non-environmental…
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Acquisition Due Diligence

Effects of COVID-19 on the Solar Industry

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We spend a lot of time on the phone with our clients and vendors,…
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The Importance of Torque for PV System Longevity

The Importance of Torque for PV System Longevity

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Torque is a commonly used term in Solar PV system inspection,…
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Conduct Due Diligence In-House or Hire a Specialist

Conduct Due Diligence In-House or Hire a Specialist?

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As covered in our previous articles in this series (Article…
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Buyers Need an Owner’s Engineer in this Sellers’ Market

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PV Pros has been helping buyers de-risk in their asset acquisition…
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3G Wireless Network Obsolescence and Its Impact on Solar

3G Wireless Network Obsolescence and Its Impact on Solar

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By the end of 2019, Verizon will obsolete its coverage on legacy…
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Spring Time for Preventive Maintenance

Spring Time for Preventive Maintenance

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Spring cleaning also applies to solar! After harsh exposure…
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Hall of Shame - Preventive Maintenance Edition

Hall of Shame: Preventive Maintenance Edition

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Even when systems are installed with top notch workmanship…
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ASTM E2848 Capacity Test for Beginners

ASTM E2848 Capacity Test for Beginners

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Capacity and performance ratio tests are used to demonstrate…
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Acquiring Existing Photovoltaic Systems

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A Photovoltaic (PV) System may change hands multiple times over…
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Photo of the Week - Wire Management Practices

Photo of the Week: Wire Management Practices

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Array wire management is an area where different materials and…
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2017 Asset Management and Performance Conference

2017 Asset Management and Performance Conference

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PV Pros Director discusses the needs of O&M team integration…
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Photo of the Week - Enclosure Mounting

Photo of the Week: Enclosure Mounting

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Enclosures are designed to be mounted from the designed mounting…
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Photo of the Week - Splice Box Maintenance

Photo of the Week: Splice Box Maintenance

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Wire Splices are a common point of failure that that can be prevented…
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Photo of the Month - PVC Conduits

Photo of the Month: PVC Conduits

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PVC conduits are acceptable when used properly (lots of expansion…
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Photo of the Month - Corrosion

Photo of the Month: Corrosion

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NEMA 3R and 4 inverters and outdoor cabinets may be rated for…
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Photo of the Month - Improper Raceway

Photo of the Month: Improper Raceway

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This installer gets full points for creativity, but fails miserably…
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Photo of the Month - Maintain Vegetation

Photo of the Month: Maintain Vegetation

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Two things went wrong here. First, the vegetation was not maintained,…
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Photo of the Month - Wire Management

Photo of the Month: Wire Management

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At this site, the intermodule wiring is zip-tied to the rails…
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Photo of the Month - Mysterious Water in Enclosures

Photo of the Month: Mysterious Water in Enclosures

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During O&M we often find combiner boxes and disconnect switches…
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Photo of the Month - Irresponsible Inverter Repair

Photo of the Month: Irresponsible Inverter Repair

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While conducting O&M on a Satcon 250kW central inverter,…
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Photo of the Month - Standing on Modules

Photo of the Month: Standing on Modules

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I appreciate Shoal’s new arc fault technology as shown in this…
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Photo of the Month - Irresponsible Layout

Photo of the Month: Irresponsible Layout

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Just when I thought I have seen it all… Notice the mid-clamp…
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Photo of the Month - Awful Wire Management

Photo of the Month: Awful Wire Management

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We were called out to investigate a performance issue at a site,…
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Photo of the Month - Dangerous Cable Tray

Photo of the Month: Dangerous Cable Tray

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At this site, cable tray was used for wire management between…
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2 Important Settings for Thermal (IR) Cameras

2 Important Settings for Thermal (IR) Cameras

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Thermal (IR) cameras are a great tool for preventative maintenance…
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Photo of the Month - Improper Edge Setback

Photo of the Month: Improper Edge Setback

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There was ample space on the roof, but the installer placed the…
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Photo of the Month - Wrong Ballast Type

Photo of the Month: Wrong Ballast Type

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On this system, the installer stacked ballast so high that it…
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