Off-grid Solar Systems with LiFePO4 (Lithium) Batteries

We are excited to offer the following prices on complete solar systems with Lithium battery packs, managed by state of the art battery management systems that are fully integrated with the inverters and gives you online monitoring of all aspects of your system. On top of that we can now offer a 5 year warranty on the complete system. The batteries have a life expectancy of more than 10 years and the panels more than 20 years. We also have access to a comprehensive local (Cape Town) repair service on the Voltronic inverters.

System1:  4kW Inverter, 3kWh Battery, 1.8kW PV (R65,488)
System2:  4kW Inverter, 6kWh Battery, 3.0kW PV (R105,826)
System3:  8kW Inverter, 6kWh Battery, 3.6kW PV (R128,326)
System4:  8kW Inverter, 9kWh Battery, 6.1kW PV (R182,460)
System5: 12kW Inverter, 12kWh Battery, 7.3kW PV (R236,002)

Prices exclude VAT and installation, but include all the components you need such as wiring, lightning protection, combiner box etc.

Installation, if required, varies per site and can be quoted. It typically ranges from R10,000 to R25,000 for the systems listed.

We are constantly striving to improve our already well designed energy solutions. Our ability to offer after sales support on all products is a non-negotiable aspect of our business. With the owner’s qualification in Electronic Engineering and attention to detail you are in safe hands.

Off-grid Solar Pumps

An off grid solar pump (where you replace your dedicated Eskom connection with solar power) has a very good return on investment. No need to replace your existing pump and motor, just the electricity supply. Indicative payback figures are as follows:

kW    System Cost      5 Year Saving   10 Year Saving
2.2    R51,120.14        R133,915.98     R339,962.31
5.0    R97,000.50       R167,250.22     R424,585.41
10     R179,999.00     R226,775.65     R575,698.09
15     R262,897.50     R286,301.07     R726,810.77
20     R340,746.50     R345,826.50     R877,923.44
25     R417,794.50      R405,351.93     R1,029,036.12
30     R495,894.00     R464,877.36     R1,180,148.80

The “Solar Cost” includes the solar charge controller, solar panels and cost of wiring, lighting protection etc. This is all you need apart from the structures to mount the solar panels.

Note: No batteries involved. The panels have a 20 – 30 year lifespan. Budget on replacing the solar charge controller two or three times in a 20 year period (this is a relative small cost).

Solar power is a perfect fit for water pumping with storage. It can be used for direct irrigation as well, but remember you are dependent on the weather!

The following assumptions were used in the calculations:
R/USD: R15.30
Monthly Eskom connection fee: R1500
Eskom price per kWh: R1.20
Eskom yearly price increase: 9%
Sun hours: An average of 5 hours per day pumping through the year.

Please send me your email address and I will reply with the spreadsheet with the calculations.