EXHIBIT 15.1 LETTER FROM INDEPENDENT ACCOUNTANTS We are aware that our reports on the unaudited interim financial statements, included on Form 10-QSB of DCH Technology, Inc. for the periods ended June 30, 2000 and September 30, 2000, are being included in the Registration Statement on Form S-3, which incorporates such interim reports by reference. Los Angeles, California November 29, 2000