Portable Solar Energy Exhibit

Portable Solar Energy Exhibit

Building on MGE's other 18 solar projects throughout our community, our portable solar energy exhibit:

  • Raises visibility of solar power.
  • Shows how solar photovoltaic systems work.
  • Will be displayed at many environmental and community events around our service area. See our calendar of events for the currently scheduled dates.

Exhibit features

  • Four 72.5-watt, thin film modules make up one array—10.1% efficient.
  • Two 200-watt hybrid modules using crystalline cells and amorphous silicon layers make up the second array—up to 17.4% efficient.
  • Real-time energy monitoring.

How it works

  1. DC power generated from the PV arrays on the roof feed the batteries.
  2. Batteries store the energy until needed.
  3. When needed, the power flows through an inverter which changes the direct current (DC) electricity into alternating current (AC), the kind that we use in our homes and businesses.
  4. When the trailer is plugged into the electrical grid, it can supply power to the grid if the batteries are fully charged and the sun is shining, or power from the grid can recharge the batteries as needed.

Solar Trailer Chart

Power generated

At peak capacity, the energy exhibit can generate about 2.4 kWh per day, or about 1/10th of the average MGE residential electric customer's daily electrical needs.

For more information