Direct current (DC) is a continuous flow of electricity in one direction through a wire or conductor. 

DC is created by generators such as fuel cells or photovoltaic cells, and by static electricity, lightning, and batteries. By convention, electric current flows from a high to a low potential; for example, in a battery, from a positive to a negative pole.

This guide offers a brief overview of the usage of direct current (DC), covering its benefits and challenges. It explores DC applications across different sectors and explores its potential implementation in building infrastructure.

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Five minute guide to DC Power