Beacon Power Corp. filed with U.S. regulators on Monday to periodically sell up to $50 million in common and preferred stock, depositary shares, warrants and units.

The Wilmington, Massachusetts-based company said in a registration statement with the U.S. Securities and Exchange Commission that it would use the proceeds from the shelf offering for general corporate purposes.

Those purposes could include the repayment of future debt and potential acquisitions.

Under a shelf registration, a company may sell securities in one or more separate offerings with the size, price and terms to be determined at the time of sale.