There are more direct current (DC) powered devices than ever, but we still use alternating current (AC) power grids. This means that we’re powering a DC world with AC power. LED lighting, telecom equipment, variable speed motors, EVs, and any devices that use semiconductors or batteries, all require DC power. In fact, DC devices currently makes up about 74% of total electrical loads in homes that use electric vehicles and HVAC equipment with DC motors. If these DC devices receive AC power, they have to convert it to DC, which is usually an inefficient conversion process that wastes energy.
Another problem with distributing AC power is that it suffers from more line losses/voltage drop than DC power of the same voltage. Ultimately, this increases operating costs.
These problems largely affect LED lighting and telecom operations, as well as highly contributes to energy waste in commercial buildings (30% is wasted on average).
The Cence DC power distribution system eliminates the need for multiple, inefficient AC to DC conversions in order to save energy, and reduce operating costs. To achieve this, our centralized drivers make one, highly efficient AC to DC conversion, and distribute DC power to devices that need it. The Cence system also involves smart technology such as wireless sensors and a digital twin, cloud-based app. This layer of intelligence enables monitoring and automation, resulting in even more energy savings. In total, the Cence power system saves DC applications, such as LED lighting and telecom, up to about 40% in energy.
As for the problem with line losses, the solution is distributing high-voltage DC power along cables in order to get more power to a device, without losing as much along the way. You can read about that in our blog article about line losses.
Cence also provides the solution to more specific power distribution problems, such as in the telecom and LED lighting markets. Read about them here: