Solar Articles: Engineering

  • Designing a 208v Three-Phase Solar Project
As residential installers begin to win more jobs, small commercial projects become a natural next step. When making that leap to commercial service voltage, a little upfront knowledge of 208 three-...
Support Article
10/17/2018
  • Chilicon
This article will discuss the advantages of using microinverters with AC coupling for residential, single-phase applications. The two leading microinverter manufacturers in the U.S. market include...
Support Article
9/19/2018
  • Solar Wire Management
One of the most important tasks when installing a PV system is wire management.  This task is sometimes overlooked by installers or not given enough attention. Installers that take their wire...
Support Article
8/11/2018
  • How Heat Affects Solar Panel Efficiency
  It may seem counter-intuitive, but solar panel efficiency is affected negatively by temperature increases.  Photovoltaic modules are tested at a temperature of 25 degrees C (STC) – about 77 degrees...
Support Article
11/8/2017
  • Helioscope Design
The solar design process is a critical starting point in executing a solar photovoltaic (PV) project. In the age of accessible satellite imagery and innovative software development, designing solar...
Support Article
4/26/2017
  • Proper preparation prevents poor performance with Solar Installation
Solar integrators use all sorts of tools to complete the tasks that keep their businesses moving forward. These include the obvious hand and power tools to install the solar equipment and the less...
Support Article
9/1/2016
  • Block diagrams present an organized visual representation
The design of PV systems can be fairly simple as well as extremely complex.  No matter how difficult or easy, it is important to document the design process.  Doing so will help flush out issues...
Support Article
5/21/2015
  • Solar Inverter String Design Calculations
  For many new to photovoltaic system design, determining the maximum number of modules per series string can seem straight forward, right?  Simply divide the inverter’s maximum system voltage rating...
Support Article
5/9/2015
  • AC-Coupling Design
One of the main considerations to AC-coupling design is the ratio between the Grid-Tie inverter (GTI) and the Battery-Based inverter (BBI).  Why? There are conditions that might occur when the site...
Support Article
12/9/2014
    The Evolution of PV Design The design process for photovoltaic systems has, for the most part, transitioned from a simple electrical equation to a complicated three-dimensional architectural,...
Support Article
11/12/2012
  • Mobile Apps for Solar PV design and calculation
Smart phones and tablets have become a tool of choice for innumerable purposes. The simplest Apps contain ready construction references and the most sophisticated apps make use of onboard...
Support Article
2/16/2012
  • solar panel dc disconnect switch
A solar PV system typically has two safety disconnects. The first is the PV disconnect (or Array DC Disconnect). The PV disconnect allows the DC current between the modules (source) to be interrupted...
Support Article
10/20/2011
  • Example of terrible wind damage on a rooftop pv array
Today’s photovoltaic (PV) industry must rely on licensed structural engineers’ various interpretations of building codes and standards to design PV mounting systems that will withstand wind-induced...
Support Article
11/2/2010