PH: 087 700 4819 // 082 500 1204
Solarflex SA is dedicated to supplying reliable
Flexible, Fold Up and
Framed Solar Panels to recreational product users in South Africa.
We also deal in industry solar related 12v products.
Cape Town: Administration, Operations, Sales and Distribution
Steve Davies: firstname.lastname@example.org
Renewsys Solar Panels
Solarflex SA is an Authorised Dealer of RenewSys (India) PV Solar Panels.
"let there be light"
RenewSys manufactures Solar PV Modules DESERV™ in a wide range of configurations and power outputs,
to suit applications from small home lighting to utility scale mega power plants.
The PV modules come in configurations of 36 Cells, 48 Cells, 54 Cells, 60 Cells and 72 cells.
The RenewSys Solar Modules are manufactured on state-of-the-art equipment,
and use certified components from world class suppliers.
The three most critical components - EVA Encapsulant, Backsheet and Cell - are manufactured in-house,
ensuring highest quality and reliability.
Authorised Dealer for CS Solar Flexible Solar Panels and
CS Solar Fold Up Solar Panels.
CS Solar flexible solar panels utilise back contact SunPower solar cells,
with efficiencies from 22.4% to 23.6%.
Japanese-imported ETFE materials allow the solar panels to resist very high temperatures.
The ETFE Encapsulation features excellent waterproof characteristics
The FSP series solar panels are flexible and have a curvature of up to 30%.
The thinfilm lightweight panels have an aerodynamic design that can reduce
wind resistance when installing on the rooftop of the Campervan, Caravan or
Supplied with 50cm lead connections and MC4 connector.
Delivery, Courier or Collection.
We make use of courier services, packages can be delivered anywhere within South Africa.
(all courier services are quoted on a per order basis)
R 145.00 for delivery within a 25km radius
from Kuils River.
Typically a courier delivery fee within South Africa to Major Centres of a solar panel
and Regulator with cables at @ R 295.00 Inc Vat.
Please note any courier services to a Regional or Rural address are considerably more
than when delivering to a Major Metro area.
Please ask for a courier quotation prior to delivery.
Once you have decided to go ahead with a purchase I would forward an invoice which contains
the banking details for an EFT transfer.
Once the proof of payment has been received I despatch the item accordingly and
forward the waybill tracking details.
All I would need is a contact phone number and physical address for delivery
by the courier service if necessary.
Final delivery would normally be @ 4 – 5 days from confirmation of order and receipt of payment.
Basic Technical Info
Solar power is generated when
photovoltaic modules convert direct sunlight into electricity.
Direct current (DC) flows from the photovoltaic modules through a regulator to a battery
or battery bank where the power is stored.
12v DC appliances can be powered directly from the batteries.
Watts / Volts = Amps.
To power alternating current (220V AC) appliances, inverters are required.
The inverter converts DC power into AC power.
Battery Charge Regulators or Controllers.
PWM or MPPT controllers, on very small applications there is not much advantage gained by deploying an MPPT Charge Controller, although they are more efficient.
A 20Amp Battery Charge Controller will suffice for one PV 100Watt Solar Panel.
The Volts supplied at maximum power from a 12V solar module can be between 14-22 Volts per panel,
depending on the brand of panel and type of panel.
Please note that MPPT Charge Controllers require an input source of more than 5 volts above the battery voltage
from the solar panel, ie a recommended
minimum of 18volt output from the solar panel for the MPPT charge controller
to start operating.
Solar Panel Connectors.
Please note that connectors on the panels supplied may differ with the connectors on view.
Most good quality connectors available in South Africa will be acceptable to operate the
panels with most appliances available in South Africa.
2 Core cable of 1.5mm to 2.5mm mm squared wiring in a UV encapsulation will suffice for wiring on short lengths.
In marine operations water resistant connectors are recommended for best results.
If in doubt please contact your nearest reseller.
Download Information on Panels, Chargers and Batteries:
Solar Panels: Watts, Amps and Volts Explained
General Information on Solar Panel and Battery Installations
Different Types of Solar Panels Explained - A Brief Guideline
Types of Batteries Information Part 1
Battery Types: Types of Batteries Information Part 2
Batteries: Deep Cycle Battery Charging
Batteries: Terminology A to Z
Charge Controllers: PWM and MPPT Information
Glossary of Terms.
Maximum Power Point (Pmax)
It is where the combination of the volts and amps results in the highest wattage (Volts x Amps = Watts)
Open-circuit voltage (Voc)
The open circuit voltage is the maximum voltage that the solar panel can produce with no load on it
(i.e. measured with a multimeter across
the open ends of the wires attached to the panel).
Maximum Power Point Voltage (Vmp)
This is the voltage that occurs when the module is connected to a load and is
operating at its peak performance output
under standard test conditions
The Vmp is the voltage when the power output is the greatest.
It is the actual voltage you want to see when it is connected to the MPPT solar equipment
under standard test conditions.
Short Circuit Current (Isc)
The short-circuit current (ISC) is the current through the solar cell when the voltage across the solar cell is zero
(i.e., when the solar cell is short circuited).
Current at maximum power (Imp)
The Imp is the current (amps) when the power output is the greatest.
It is the actual amperage you want to see when it is connected to a
Battery Charge Controller under standard test conditions in bulk-charge mode.
The actual current varies with sun strength on the panel.
Alternating Current (AC)
Alternating current is electrical current that continually reverses direction.
Change in direction is expressed in cycles per second.
An Amp is a unit that measures the rate of flow of an electrical current.
Amps Per Hour.
The amount of power required to efficiently operate the load.
A breaker is a device that connects/disconnects power to a circuit.
A brownout can cause significant data loss and voltage fluctuations.
A circuit is a continuous loop of current.
Ambient Temperature is the average temperature of the environment.
A Brownout is a temporary drop in electric power. Although power is not completely lost.
A Circuit Breaker is a switch that protects the load from overcurrent conditions.
The Critical Load is known to be the devices or equipment that has or will fail as
a result of power loss/power problems; subsequently causing loss of data or
function and promoting unsafe operating conditions.
Direct Current is the movement of an electrical charge in one direction.
A fault is a short circuit in the power system.
A ground references the connection of an electric circuit to the earth.
Harmonic Distortion refers to the distortion of the sine wave.
Hertz is a unit of frequency; one hertz is equal to one cycle per second.
Hot, Neutral, Ground
The Hot, Neutral, and the Ground are the three most common wires in a circuit.
An inverter is an electronic device that produces alternating current (AC) from direct current (DC)
A load is any device that requires energy.
Noise is known as electrical signals that produce negative effects in the circuits of the electronic
Over voltage is typically described as any voltage value of 10% above nominal for at least a minute.
Power Conditioning is the isolation of sensitive equipment from the effects of electrical noise and
voltage fluctuations otherwise referred to as “dirty power”.
Power Factor is the ratio of watts (W) to volt-amperes (VA).
A rectifier is a device that converts AC power to DC power.
A sag is a decrease in voltage or current.
A short circuit usually causes a circuit breaker to blow. A short circuit is inevitable when the
electric current does not reach the powered device.
A surge is a short transient wave of current/power in an electrical circuit.
An under voltage is a measured voltage that falls below the nominal voltage for more than one
An Uninterruptible Power Supply (UPS) is a system that most often uses batteries to supply
continuous power to a load when the utility is not present or is not at an acceptable level.
A volt is a measurement of electrical pressure.
Voltage Distortion is the distortion of the alternating current (AC) voltage.
Watts is the measurement of the amount of electrical power drawn by the load.
Amps x Volts = Watts.
Typically a load will state amps per hour drawn, the most useful term being watts which is volts x amps = watts.
Assume a 12 v device drawing 3 amps per hour = 36 watts.
Alternatively a 3 amp per hour load operating at 13 volts will use 39 watts of power in the equivalent time.
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