Photovoltaic Solar Module 1/2 Watt

Submitted by Karl Kuhrman on Tue, 12/01/2020 - 10:20

Overview

This project comprises the specification, design, BOM and building instructions for a 1/2 Watt PV solar module (PVM).

Goals

  1. The PVM shall comply with the four overarching requirements as defined by our mission statement.
  2. The PVM shall encapsulate a solar cell capable of generating about 1/2 Watt (0.50W) at peak performance.

Status

This project is in the development phase.

Summary

A solar module is little more than one or more solar (photovoltaic) cells encapsulated for protection from environmental or mechanical damage. The most common solar cells are made from monocrystalline silicon.

@todo: image of solar module construction

One of the most popular methods for manufacturing solar modules is to laminate solar cells between encapsulating layers. The layer facing the sun is typically some ultra-clear glass, whereas that facing away is some form of durable, heat-resistant plastic such as Polytetrafluoroethylene (PTFE e.g. TeflonTM) or Polyvinylflouride (PVF e.g. TedlarTM). The glue used to encapsulate the PV cells between glass and backsheet is typically Ethylene-vinyl acetate (EVA).

Solar module 'ribbon' is specialized flat type of copper wire coated with a soldering alloy which is used to connect PV cells to one another and to the solar module electric terminals, typically some type of weatherproof power connector.

 

Project Type