Matching solar modules to MPPT charge controllers

Life used to be so simple; in a 12V battery system you took a ‘12V’ solar module, watched carefully that the maximum PV current would not exceed the charge controller maximum current and the system would work.

Unfortunately due to the fact, that with PWM controllers the PV module is not feeding the battery from its maximum power point (MPP), the system loses a lot of energy. In the following diagram you can see, the area of the MPP in blue  (Vmpp * Impp) is up to 30% larger than the PWM area (Vbatt * ~Isc) within the IV curve. IV curve So, with the advent of the newer Victron Energy Blue Solar MPPTs, things changed for the better when compared to PWM solar charge controllers.Continue reading

Pacific Powerboat magazine: Quattro packs a punch

It’s good to see Victron’s products appearing in magazines, and making a difference to boat owners. This time it is the southern hemisphere’s turn.

When SeaChange, a 15m powercat luxury catamaran from Darwin in Australia, needed an upgrade, Ynovex Pty Ltd., put together a package that gave the boat a whole new lease of life.