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Jacara, Make your mistakes on paper and not on your home

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Jacara Models


Why an Audit Plaform?

There is simply no better way to reduce energy consumption than to compare options in an audit platform on an individual load basis. Avoid typical mistakes like incorrect technology selection or sizing. Avoid spending time and money focussing on stereotypical loads. A standard family home should use no more than 12kW.h/day without the aid of PV generation. Identify and focus on the correct appliances. Avoid disappointment later, make sure you have all the facts.


Random energy facts

  • Seven out of ten disappoinng outcomes and unmet expections regarding PV systems are due to electricity consumption-generation profile mismatch
  • Taking measures to implement efficiency could reduce your electricity bill by up to 85%.
  • An energy efficient three-bedroom home should consume less than 12kW.h per day without PV generation.
  • When combining correct efficiencies and PV generation, the average ROI is 40% faster than using PV generation only.
  • An electric stove/oven uses less than 5% of the energy in a standard home, yet rate in the top three appliances to consume energy in the home.
  • A standard non-efficient fridge could use more than 6kW.h/day compared to 0.3kW.h/day for an efficient model of similar capacity.
  • Under sizing a solar geyser will result in daily consumption from grid, while oversizing will result in overheating and water wastage.


About Jacara Audit

The energy profile of a home is not a single dynamic mass changing unpredictably. It is actually made up of numerous loads that are generally repetitive by nature. Jacara Models allow the isolation and dealing with loads on an individual basis.

Accurate data recorded over a two week period together with our unique audit platform is the first step towards energy independence. Using a specialized audit platform avoids guessing, whilst aiding in the correct selection of technology and size of efficiency measures. Understand, prioritise and plan the impact and viability of energy efficiency measures.

Many significant residential loads are seasonal, even this can accurately be incorporated into Jacara. Incorporate seasonal effect by removing or reducing specific loads during non-operational months as well as adding loads from the Jacara Database for appliances that were non-operational during data collection.


Jacara Audit Benefits

  • Identifying problem appliances
  • Compare efficiency options
  • Individual appliance ROI
  • Consumption breakdown
  • Pre/Post energy profile
  • Daily energy profile
  • Seasonal energy profile
  • Appliance comparison
  • ROI chart
  • Financial simulation
  • Individual load visualization

Jacara Designer


Why a PV Designer?

There is simply no better way to predict the financial viability of a PV system and fine tune the design than to use a PV design simulator. Avoid typical mistakes like incorrect system selection or generation-consumption profile mismatch. Use the correct battery technologies as well as the sizing to meet expectation. Our financial simulator will calculate battery life and incorporate battery life for an accurate ROI. Avoid disappointment later, take the time to ensure correct design.


Random PV facts

  • Only one in every ten residenal solar systems sold in Southern Africa has been designed using a PV simulaon tool.
  • The average PV module sold to a household in Southern Africa will only produce 62% of its potentional capability due to throttling or storage losses.
  • Very few utilities in Southern Africa permit the feedback of excess PV-generation. In most cases these utilities will require the prevention of feedback or might bill you for excess generation.
  • The average home can only reduce 38% of their electricity bill by means of PV generation alone.
  • The cost of storing energy in traditional batteries range between R2.47 and R27.00 per kWh.
  • An electricity bill should not be the main factor used to design a PV Systems.
  • PV module angles should be determined by seasonal requirement, and not maximum yield.
  • Battery replacement should always be modelled into any battery related PV design.


About Jacara PV Designer

Any PV design should start with the actual energy profile of an efficient home, and this is exactly what Jacara Designer does. Jacara Designer utilizes the highly accurate post efficiency data directly from Jacara Models in the PV simulation platform. The data from Jacara Models will incorporate seasonal changes accurately, understand this requirement and design system to incorporate this element. Eliminate the need to “oversize” and remove the guessing margin.

Jacara is the only PV design platform that includes all the common tariffs, including generator, and can accurately simulate the feasibility of all the different types of PV systems taking all these factors into account. Unlike most PV design tools that are simply yield simulators, Jacara Designer brings all the variable factors into one platform to give you an accurate simulation of what is actually going to transpire, allowing you to make an informed decision.


Jacara Designer Benefits

  • Design any system type
  • Design across different inverter brands
  • Emulate inverter reaction
  • Incorporate seasonal effect
  • Include any tariff type
  • Compare different systems types
  • Generation-consumption profile match
  • ROI and cash flow charts
  • Include battery replacement cost where applicable
  • Compensate accurately for losses or shortall
  • Panel direction consumption profile match
  • Individual load visualization
  • Panel inclination seasonal profile match

Jacara Designer Systems

Brief description of all available systems
and there attribues

  • Island

    Independent power from utility
  • Choose Utility, generator or no backup at all
  • PV modules should be oversized for consumption
  • Energy storage need to cater for daily cycling
  • Design should cater for average worst month conditions
  • Ideal system for no power, or high connection charges
  • Grid Tie

    PV Generation only
  • Grid tie will export surplus energy
  • No power in case of grid failure
  • Tariff will determine viability
  • Generally most affordable PV system
  • Ideal where you can export power to the grid
  • Smart Grid

    Grid-Tie Throttled
  • Smart Grid will throttle inverter to prevent energy export
  • No power in case of grid failure
  • Tariff and consumption profile determine payback
  • Very affordable PV system
  • Ideal for own consumption during daytime
  • ESS

    Smart Grid with Surplus Recovery
  • Daytime surplus will be stored
  • Luxury of back-up in case of grid failure
  • Generation less than total consumption
  • Higher in cost than Smart Grid due to storage
  • Ideal for backup and own consumption clients
  • Multi-Hybrid

    Grid-tie with backup
  • Export surplus energy to grid
  • Back-up in case of grid failure
  • Generation less than overall consumption
  • Uses standby batteries instead of cyclic batteries
  • Ideal for clients that export energy and require backup
  • Hub2 Hybrid

    Smart Grid with surplus recovery
  • Surplus recovery system where Inverters don’t communicate
  • Offers backup in case of grid failure
  • Grid-tie PV generates through power outages
  • Requires batteries for cyclic use
  • Ideal for own consumption clients with older inverters
  • Backup

  • Back-up only
  • No generation
  • Should always have monitoring
  • Typically use standby batteries
  • Ideal for clients with no option of generation
  • Grid Parallel ESS

    Grid Connected through Island Inverter with Surplus Recovery
  • Daytime surplus will be stored
  • Luxury of back-up in case of grid failure
  • Generation less than total consumption
  • Cross between Smart Grid and ESS
  • Energy Storage System without grid inverters

Tariff Types

All the types of electricity tariffing Jacara offers


Flat rate

Fixed rate per kW.h of energy consumed. This tariff could have line charges


Time of Use

The rates vary depending on time of day, day of week and time of the year


Maximum Demand

Tariff has a fixed cost per KW.h consumed but also a maximum demand charge for largest peak draw


Bulk Tariff

Energy is charged in blocks. As the user consumes more the cost of energy increases



Small Scale Energy Generator. This tariff is used where import and export have different rates. Usually also has a fixed charge associated


Generator as Main Supply

Calculates the fuel and maintenance cost of operating a generator for electricity


License Comparison

Single User License Company License
Starting at
per month
Starting at
per month
All audit software
All audit software
  Access to all paid systems
Access to all paid systems
  All tarrifs types include
All tarrifs types included
  Online Billing
Online Billing
  Pricing Control of parts
Pricing Control of parts
  Custom designed solar systems
Custom designed solar systems
  Basic Support
Basic Support
  Priority Support
Priority Support
  Usage Statistics (Coming Soon)
Usage Statistics (Coming Soon)
  Number of Users
Number of Users 1 User 10 Users
  Expandable User Licenses
Expandable User Licenses
  Customizable Reports
Customizable Reports

Jacara Pricing

Single User License

1 User Only

  • R250 Audit Tool
  • R150 Per Designer System

Company License

10 Users

  • R1750 Audit Tool
  • R750 Per Designer System

Jacara Gallery

Images demostrating Jacara