Silicon solar cell module provides both all-weather protection and electrical power. Module consists of array of circular silicon solar cells bonded to fiberglass substrate roof shingle with fluorinated ethylene propylene encapsulant

Forestieri, A. F.

Ratajczak, A. F.

Sidorak, L. G.

English

NASA Technical Reports Server

ATTACHMENT 
STRIP i
ELECTRICAL-
MECHANICAL 
ATTACHMENT 
STRIP ELECTRICAL CONTACT PAD 
.
December 1975	 B75-10289 
NASA TECH BRIEF 
Lewis Research Center 
NASA Tech Briefs announce now technology derived from the U.S. space program. They are issued to encourage 
commercial application. Tech Briefs are available on a subscription basis from the National Technical Information 
Service. Springfield, Virginia 22151. Requests for individual copies or questions relating to the Tech Brief program may 
be directed to the Technology Utilization Office, NASA, Code KT, Washington, D.C. 20546. 
Solar Power Roof Shingle 
ROOF SHINGLE 
Solar cell Shingle showing attachment strip with electrical-mechanical spring clips. 
A recently designed silicon solar cell module does 
double duty. It is designed as a roof shingle for residences 
and similar structures, and provides both the all-weather 
protection of a shingle as well as the electrical power of a 
solar cell module. The module consists of an array of 
circular silicon solar cells bonded to a fiberglass substrate 
roof shingle with a fluorinated ethylene propylene (FEP) 
encapsulant (see figure). 
These solar power shingles are easily installed. An 
attachment strip is nailed to the roof. This strip has a 
U-shaped cross-section containing spring-loaded electrical 
connectors. As the shingles are pressed into the slots in 
the attachment strip, both electrical and mechanical 
attachments are obtained simultaneously. The attachment 
strip acts as an electrical bus and can be designed so that 
the attached shingles are connected in either series or 
parallel circuits. The shingles containing the solar cells can 
be interspersed with blank shingles to accommodate 
electrical load requirements less than the equivalent of full 
roof coverage.
Note: 
No additional documentation is available. Specific 
technical questions, however, may be directed to: 
Technology Utilization Officer 
Lewis Research Center 
21000 Brookpark Road 
Cleveland, Ohio 44135 
Reference: B75-10289 
Patent Status: 
Inquiries concerning rights for the commercial use of 
this invention should be addressed to: 
NASA Patent Counsel 
Mail Stop 500-113 
Lewis Research Center 
21000 Brookpark Road 
Cleveland, Ohio 44135 
Source: A.F. Forestieri, A.F. Ratajczak

and L.G. Sidorak

Lewis Research Center

(LEW-1 2587) 
Category 01,02 
This document was prepared under the sponsorship of the National
	 Government assumes any liability resulting from the use of the 
Aeronautics and Space Administration. Neither the United States
	 information contained in this document, or warrants that such use 
Government nor any person acting on behalf of the United States
	 will be free from privately owned rights.
https://ntrs.nasa.gov/search.jsp?R=19750000289 2020-03-19T20:17:16+00:00Z


Solar power roof shingle

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