Maximum Power Point Tracking

Upper curve:
Output current (I) of a solar panel as function of output voltage (V).
The maximum power point (MPP) is the point Pmax along the curve where the product I x V reaches its peak.

Lower curve:

Output power P = I x V as function of output voltage.
When using a PWM (not MPPT) controller the output voltage of the solar panel will be nearly equal to the voltage of the battery, and will be lower than Vmp.

Victron Energy B.V. | De Paal 35 | 1351 JG Almere | The Netherlands General phone: +31 (0)36 535 97 00 | Fax: +31 (0)36 535 97 40 E-mail: sales@victronenergy.com | www.victronenergy.com

BlueSolar charge controller

Battery voltage
Maximum battery current Maximum PV power, 12V 1a,b) Maximum PV power, 24V 1a,b) Maximum PV open circuit voltage Peak efficiency
Self-consumption
Charge voltage 'absorption' Charge voltage 'float'
Charge algorithm
Temperature compensation

Protection

Operating temperature Humidity

MPPT 75/50

12/24 V Auto Select
50 A
700 W (MPPT range 15 V to 70 V) 1400 W (MPPT range 30 V to 70 V) 75 V
98 %
10 mA
Default setting: 14,4 V / 28,8 V Default setting: 13,8 V / 27,6 V multi-stage adaptive
-16 mV / °C resp. -32 mV / °C

Battery reverse polarity (fuse) Output short circuit Over temperature

-30 to +60°C (full rated output up to 40°C)
95 %, non-condensing
ENCLOSURE
Blue (RAL 5012)
13 mm2 / AWG6
IP43 (electronic components), IP22 (connection area) 1,25 kg
130 x 186 x 70 mm

The BlueSolar 75/50-MPPT charge controller is able to charge a lower nominal-voltage battery from a higher nominal voltage PV array.
The controller will automatically adjust to a 12 or 24V nominal battery voltage.

Ultra-fast Maximum Power Point Tracking (MPPT)

Especially in case of a clouded sky, when light intensity is changing continuously, an ultra fast MPPT controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up to 10% compared to slower MPPT controllers.

Advanced Maximum Power Point Detection in case of partial shading conditions

If partial shading occurs, two or more maximum power points may be present on the power- voltage curve.
Conventional MPPT’s tend to lock to a local MPP, which may not be the optimum MPP.
The innovative BlueSolar algorithm will always maximize energy harvest by locking to the optimum MPP.

Outstanding conversion efficiency

No cooling fan. Maximum efficiency exceeds 98%. Full output current up to 40°C (104°F).

Flexible charge algorithm

Eight preprogrammed algorithms, selectable with a rotary switch (see manual for details)

Extensive electronic protection

Over-temperature protection and power derating when temperature is high. PV short circuit and PV reverse polarity protection.
PV reverse current protection.