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  • Consultation


    We see consultation as a training exercise. Therefore we assist in all aspects of solar analysis, vetting, and verification.
  • System Design

    System Design

    A properly designed solution will deliver expected results. We model all our PV solutions according to customer requirements.
  • Procurement


    Cost - quality balance is a tricky thing. we stock only NRS-097 compliant equipment, at a competative price.
  • Installation and Construction

    Installation and Construction

    Installations for PV solutions are rife, but we take meticulous care that all regulatory requirements are met through our installations.
  • Customer Service

    Customer Service

    With equipment lasting more than 30 years, long term relationships is important. We want satisfied customers.
  • Remote Monitoring

    Remote Monitoring

    Electricity generation is a mission critical activity.Through remote monitoring we can act before the electricity stops flowing.

Reference Installations

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Steca Solsum

Common price: R 810,40 Please contaxct us for price Weight: 0.15 kg
Width: 145 mm
Length: 30 mm
Height: 100 mm
Brand: StecaSteca
Solsum Model

The Steca Solsum charge controller is an easy to use charge controller with simple LED read-outs indicating battery state of charge. Automatic battery voltage detection makes for a simple installation without additional configuration.

Features include:

  • Automatic Voltage detection
  • PWM Contol
  • Temperature compensation
  • Monthly equalisation charge
  • Overcharge protection
  • Battery deep discharge protection
  • Reverse polarity protection


Operating performance

System Voltage 12V (243V)
Own consumption <4mA

DC Input

Solar module Open Circuit Voltage (Uoc) 47V
`Module Short circuit current I(sc) 10A
Terminals 42mm / 62mm - AWG 6/4

DC Output

Load current 10A
Connection voltage 12.4V...12.17V (24.8.V..25.4V)
Deep discharge protection 11.2V...11.6V (22.4V...23.2V)
Terminals 142mm / 62mm - AWG 6/4

Battery management

Battery voltage 9V...17V (17.1V...34V)
End-of-charge voltage 13.9V (27.8V)
Boost charge voltage 14.4V (28.8V)
Equalisation charge voltage 14.7V (29.4V)
Battery type Liquid Lead Acid


Protection IP31
Temperature range


Downloads Product Datasheet

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