A converter-meter arrangement (known as Uninterrupted DC Power Module or UDPM) has been designed which enables the conversion of utility supply to DC with power-factor correction and with the 10% limit, to power DC appliances. This module also provides an AC output to power conventional home equipment, so that the home can continue to use the investment already made. This ac line is however cut-off during brown-out. The UDPM also meters DC power usage.