Solazone shop in Davao: (082) 315 4858

Cell phone: 09673567456

or fill in this contact form


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Off-grid Solar Power

Solar power systems for isolated houses, resorts, boats, farms, packing sheds, and anywhere that is running a generator.

Our solar power systems start from small DC solar lighting kits for mountain village houses, to giant AC-coupled stand-alone systems for entire island resorts.


How many solar panels will I need?

For every kilowatt of solar panels installed at the latitude angle, the following table will give a rough estimate of the power that you can expect.
Remember that shading, cloud cover, dust and pollution will affect the output of any solar power system.

To know what size solar system will completely run your house, look at the average kilowatt usage per day on the back of a recent power bill, then divide that number by the annual average figure in the table below.

Nearest city
Best month
Worst month
Annual average
General Santos City


Larger Stand-Alone (Off-grid) Solar Power Systems

Often referred to as “off-grid” power systems, these are self-sufficient power systems that provide reliable, useable power to the end-user, without the need to connect to a mains grid electricity supply.

They are common in remote and rural areas, where mains grid electricity either doesn’t exist or is too expensive to get connected.

Power is predominantly provided by renewable energy, such as solar or wind, which is used or stored in deep cycle batteries for later. 

A pure sine-wave inverter then provides the 240 volt AC power for the house, and sometimes a generator is integrated to provide backup power for when there is insufficient renewable energy available.

Solazone supplies solar power systems, lighting, pumps and refrigeration to those dependant upon solar power. 

Our experience over the past 36 years means we almost always have a suitable solution for your budget.


Ask for a Sizing Form, fill it in, and return the completed form, to  This email address is being protected from spambots. You need JavaScript enabled to view it. for your quote based on your needs.


Selectronic - the well-proven Australian technology, distributed and installed in the Philippines by Solazone.


SPPRO Series2 inverter distributed by Solazone


Selectronic Sp Pro AU Series Inverter sizes


Model Rated Output
SPMC240 24 Volt, 3000 W continuous
SPMC241 24 Volt, 4500 W continuous
SPMC481 48 Volt, 5000 W continuous
SPMC482 48 Volt, 7500 W continuous
SPMC1201 120 Volt, 7500 W continuous
120 Volt, 15,000 W continuous
SPLC1202 120 Volt, 20,000 W continuous


All models carry the following features:

  • Low distortion sine wave Interactive Inverter Charger with grid feed ability
  • Advanced thermal techniques provide excellent high-temperature performance
  • 63 amp AC transfer switch with anti-chatter protection
  • Grid feeds with excess renewable
  • “Grid Lockout” setting can allow battery charging “Off Peak”
  • Automatic changeover when the grid fails without using a second inverter
  • World leading 300% surge capacity
  • True 100% charge capacity
  • Five stage battery charging with dual float points and adjustable temperature compensation
  • Battery midpoint monitoring with automatic equalization
  • Simple LED display, with the AC LEDs directly powered from the monitored voltage
  • Redundant safety disconnect for pluggable operation
  • Plug and play or fully configurable via computer
  • Eighteen months of logged daily totals
  • Four months of sampled data at 30-minute sample rate
  • Adjustable 30/15/10/5/1 minute sample rate
  • Easy to use configuration/monitoring software supplied standard
  • “Partial state of charge” control can minimize generator run time
  • Superbly quiet
  • All PCBs conformal coated with mil-spec silicone
  • 4 x addressable relay outputs and 3 x digital outputs
  • 4 x addressable digital inputs and 2 x analog inputs
  • 2 x user definable shunt inputs
  • Low battery shutdown override in case of emergency
  • Discretionary load control
  • External solar regulator bypass function
  • 2 x serial ports with power for accessories
  • Variable speed fan with service alert
  • Lifetime monitored capacitors with service alert
  • Warranty, 5 yrs + 2 for SP PRO accredited installers
  • 100% Australian designed and manufactured
  • Field serviceable modular design*

    *Conditions Apply


View the Selectronic product details here.


Be amazed at what we can design for you.  Call us with your requirements now.


Solazone shop in Davao: (082) 315 4858

Cell phone: 09673567456

or fill in this contact form


Contact Form
Name: (*)
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Email: (*)
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Phone Number:
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