Renewable energy power systems

A renewable energy power system comprising:

• at least one UPS having at least one multi-port DC bus, said at least one multi-port DC bus having three necessary power couplings;
• at least one additional power coupling in addition to said three necessary power couplings, said at least one additional power coupling adapted to couple at least one external DC load and at least one external DC source to said at least one multi-port DC bus;
• at least one responsive energy storage means coupled to supply power to said at least one
• multi-port DC bus and operable to maintain a substantially constant power level on said at least one multi-port DC bus;
• at least one low-pressure hydrogen storage tank;
• at least one high-pressure hydrogen storage tank;
• at least one high-pressure hydrogen pump, operable to pump hydrogen from said at least one low-pressure hydrogen storage tank into said at least one high-pressure hydrogen storage tank;
• at least one variable-vane turbine, operable to extract mechanical energy from at least one pressure differential between high-pressure hydrogen and a lower-pressure destination;
• and
• at least one DC motor-generator mechanically coupled to said at least one variable-vane turbine and mechanically coupled to said at least one high pressure hydrogen pump, wherein said at least one motor-generator is coupled to said at least one multi-port DC bus and is operable in a first mode as a motor to drive said at least one high pressure hydrogen pump using power from said at least one multi-port DC bus and is operable in a second mode as a generator driven by said at least one variable-vane turbine to supply power to said at least one multi-port DC bus.

A renewable energy power system comprising:

• at least one UPS having at least one multi-port DC bus;
• at least one exterior portion of said at least one UPS;
• at least one responsive energy storage means electrically coupled to said at least one multi-port DC bus;
• and
• at least one motor-generator mechanically coupled to at least one variable-vane turbine and mechanically coupled to at least one high pressure hydrogen pump, wherein said at least one variable-vane turbine is configurable to drive said at least one motor-generator to produce DC power coupled to said at least one multi-port DC bus.