We are confronted with DC current every day as solution provider for sustainable energy storage systems. The accelerating energy transition will have a huge impact on the actual AC grid stability due to potential local overloads. To avoid such AC grid overloads it is our conviction that DC microgrids “behind the AC grid meter” are an efficient way to reduce such risks and will contribute to the overall grid stability. The philosophy must be to use the maximum of renewable energy directly as DC power, without efficiency decreasing DC-AC conversion. Actually, we are living with the dilemma, that the production of DC power is exponentially growing every day but the relevant standards and knowhow for a seamless adoption of DC power are missing. ODCA is an ideal platform to contribute to the adoption of DC.