Demo2 first
FGCU Solar Panels
Demo2 second
FGCU Solar Panels lead by following the sun.
Demo2 third
Circuits A-D of the Solar Field.
Demo2 fourth
The Library's Photo Voltaic Panels

Power Variables

AC Energy Produced: 6648968.0 kWh
AC Current Phase A: 243.0 degrees
AC Current Phase B: 207.3 degrees
AC Current Phase C: 254.0 degrees

Enviromental Variables

Ambient Temperature: 27.4º Celcius
Wind Speed: 6.41 knots
Wind Direction: 73.17º

Equipment Variables

DataLogger Temperature: 31.97º Celcius
Cell Temperature: 26.08º Celcius
Horizontal Irradiance: 27.4
POA Irradiance: -0.17

Start Date for Graphical Displays:

Time:(Before 10AM: #:## After 10AM: ##:##
Ex: 14:15 as 2:15pm)

Format time as described
Insert day integer 1-31
Insert month integer 1-12
Insert a year 2009 and on
Records Displayed:(Four records per hour)
Insert a positive records integer

Show/Hide Input Guidelines

-Time must be entered in the format of #:## for before 10:00AM and ##:## for all times after 9:59AM. Military format for PM. 15 minute increments

-Day must be a valid for the specific month.

-Month must be 1-12

-Year must be a valid four-digit number ranging from 2009 to present year.

NOTE: First data point on record is on 4/1/2010 18:45.

Draker Labs, a leading provider of solar monitoring solutions for commercial-scale photovoltaic (PV) projects, announced the introduction of its new Sentalis 200PV monitoring system. The Sentalis 200PV is a cost-effective solution for PV systems with an energy capacity of 50-250KwH.

Like all other semiconductor devices, solar cells are sensitive to temperature. Increases in temperature reduce the band gap of a semiconductor, thereby effecting most of the semiconductor material parameters. The decrease in the band gap of a semiconductor with increasing temperature can be viewed as increasing the energy of the electrons in the material. Lower energy is therefore needed to break the bond. In the bond model of a semiconductor band gap, reduction in the bond energy also reduces the band gap. Therefore increasing the temperature reduces the band gap.

In a solar cell, the parameter most affected by an increase in temperature is the open-circuit voltage. The impact of increasing temperature is shown in the figure below.

The radiation reaching the earth's surface can be represented in a number of different ways. Horizontal Irradiance is the total amount of shortwave radiation received from above by a surface horizontal to the ground. The surface is the solar panel.
Plane of Array (POA) Irradiance is A fundamental step in calculating PV performance is determining the irradiance incident on the plane of the array (POA) as a function of time. This POA irradiance is dependent upon several factors, including:
  • Sun Position
  • Array Orientation (fixed or tracking)
  • Irradiance Components (Direct and Diffuse)
  • Ground Surface Reflectivity (Albedo)
  • Shading (near and far obstructions)