ECD Receives $26.9 Million from the Exercise of Warrants


Rochester Hills, Mich., May 4, 2005 ? Energy Conversion Devices, Inc. (ECD
Ovonics) (NASDAQ:ENER) announced today that it has received $26.9 million from
the exercise of warrants.

Warrants to purchase 1,928,462 shares of ECD Common Stock at an exercise price
of $13.96 per share were exercised by purchasers of units in the private
placements of November 2003 and January 2004. Each unit consisted of one share
of Common Stock and one warrant to purchase a share of Common Stock.

About ECD Ovonics:
ECD Ovonics is the leader in the synthesis of new materials and the development
of advanced production technology and innovative products. It has invented,
pioneered and developed its proprietary, enabling technologies in the fields of
energy and information leading to new products and production processes based on
amorphous, disordered and related materials. ECD Ovonics' proprietary advanced
information technologies include Ovonic phase-change electrical memory, Ovonic
phase-change optical memory and the Ovonic Threshold Switch. The Company's
portfolio of alternative energy solutions includes Ovonic thin-film
continuous-web amorphous solar cells, modules, panels and systems for generating
solar electric power; Ovonic NiMH batteries; Ovonic hydride storage materials
capable of storing hydrogen in the solid state for use as a feedstock for fuel
cells or internal combustion engines or as an enhancement or replacement for any
type of hydrocarbon fuel; and Ovonic fuel cell technology. ECD Ovonics designs
and builds manufacturing machinery that incorporates its proprietary production
processes, maintains ongoing research and development programs to continually
improve its products and develops new applications for its technologies. ECD
Ovonics holds the basic patents in its fields. More information on ECD Ovonics
is available on www.ovonic.com.

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Contacts:
Stephan W. Zumsteg, Vice President and CFO
Ghazaleh Koefod, Investor Relations
Energy Conversion Devices, Inc.
248.293.0440