Past Competitions

The GAP Green competition has been running annually since 2011. Get to know the past winners and finalists by browsing the video clips below.


Green Finalists for 2016


1st Place


Nubrix recycles waste paper to create quality affordable bricks to be used for building. The bricks are three times cheaper than conventional bricks and just as strong as conventional bricks. Nubrix aims to be the premier supplier of paper bricks.


Kusini Water

2nd Place


A solar powered membrane purification system that uses off-waste material such as macadamia nut shells to purify water at source. The aim is to increase access to water across South Africa.


3rd Place



Roof tiles made from 99% waste materials. A tile weighs a quarter of a traditional concrete tile, but is twice as strong and not brittle (<0.1% breakage). Thevia’s benefits and pricing yields an 8–15% saving on the total roof installation cost.


Share Water System

4th Place


Share Water System is an innovative water measuring system. It uses low power consumption and enables household owners to limit their daily water usage. This will tackle water restriction facing the country. An amount of water will be allowed to go into a household depending on the family size. The SWS will promote water sharing and responsible usage.


4th Place


 A LED lamp powered by a salt water battery, using novel materials to improve efficiency and operation. Has applications for off-grid lighting and small-scale power supply in under served areas.

Green Finalists for 2015


1st Place

briGado is a sustainable, manually operated brick making kit, designed to address the issues of housing and unemployment. It equips users in rural and informal settings with the opportunity to make bricks and build their dream homes, and also creates a platform for entrepreneurship, where individuals can use brick-making as a source of income.

OSP cement technology

2nd Place

OSP cement is a unique, sustainable technology for the complete absorption and recycling of used/waste lubrication oils (ULO) that destroy our flora and fauna and increase risk of cancer. South Africa needs to recycle millions of litres of ULO and OSP presents a more affordable solution that eliminates environmental impact.

Small-scale water purification with CSP

3rd Place

A solution to provide clean, drinkable water from sea and brackish water using sunlight. The system is based on a novel solar concentrator, manufactured using cheap, off-the-shelf components. Nano-carbons absorb the sunlight causing the water to evaporate; producing distilled, fresh water just like rain is made in nature.

NH1-MSsp water security system

4th Place

4th Element Group is developing and installing innovative solutions for rural and urban bulk water schemes, including renewable energy control units at pump sites and an accurate pipeline leak detection/management system which is aimed at reducing water losses.


myWATT has developed a simple, vendor-neutral energy auditing software that enables electricians and end-users to make informed decisions on energy efficiency interventions, at much lower cost than traditional audits. The application has an intuitive interface and workflow which supports systematic collection of data and recommended solutions.

Waste plastics to fuel pilot plant

Noncikelelo Investments is localising an innovative, on-site waste plastic to fuel (PTF) pyrolysis technology to convert PP, PE and PS plastics into a liquid petroleum product for internal combustion engines or as a heat source. The plant has high conversion efficiency, and on-site processing will reduce energy usage and overall costs significantly.

Biogas green energy plant

Biogas green energy plant produces biogas for domestic and industrial purposes, and to generate electrical power. The plant uses an anaerobic process for the production of methane gas and carbon dioxide, and recycles and filters waste water for reuse. A number of existing installations have demonstrated significant energy savings for customers.

PQRS training and information platform

PQRS is a brand agnostic training, marketing and information portal for solar PV technology; targeting the South African market, locally available brands, installers, suppliers and installations of solar PV systems. Stakeholders can market their services and products as well as training potential clients in the respective technology through the platform.

Green Finalists for 2014

Ultrasonic biodiesel processing

An existing biodiesel plant modified to incorporate a licensed ultrasonic technology. This technology aims to reduce energy consumption and improve mixing effectiveness of existing biodiesel production which typically relies on a mechanical stirrer to agitate the oil and catalyst content in heated tanks. The modification of the existing plant can be achieved at a lower cost than importing the system on a turnkey basis.

Zuka Gud

Vegetable, fruit and garden waste is recycled through a process called vermicomposting to produce a liquid organic fertiliser. This is achieved by feeding the waste to red wriggler worms which are kept in worm factories. The worms eat the waste during decomposition, and give off their leachate (urine). The leachate is harvested and sold to farmers for use as fertilizer.

e’Lite Build – structurally insulated panel

The e’lite™ Build structurally insulated panel (SIP) building system improves on the benefits of traditional SIP structures. It uses recycled honeycomb paper core, expanded and dried in the shape of a natural honeycomb encased in a timber frame and laminated on either side with composite sheets of wood-based and fire-proof sheeting. It improves on the existing SIP system in that the core insulation is not petroleum-based and the outer protective layers are composite thereby providing the necessary protective properties such as fire, water and intrusion protection, and requiring no additional protective layers / work.

SWAG – Solar, Wind, AC and Generator

Multiple renewable and grid-based energy sources are connected to an intelligent controller that learns a user’s power consumption over time, and manages the introduction of the different energy sources depending on current and predicted demand. In addition, excess power can be fed back to the grid.

Green Tower- hybrid solar PV and heat pump solution

The patented Green Tower combines efficient water heating using a hybrid solar heat pump with optional hot water storage, rain/borehole water storage, gray water recycling and solar PV electricity generation. Using a modular and affordable design with factory pre-assembly of key components into an ergonomic frame, installation and commissioning is simplified. The main advantage of a Green Tower is standard installation with little impact on the roof structure while accommodating optional hot water storage and solar PV system.

Heat Pump Dryer

A heat pump technology has been developed for the drying of various South African fruits. The innovation enables fine control over the drying temperature, relative humidity and air velocity enabling better management of product quality than existing methods. In addition, experimental tests have demonstrated a 70% saving in electricity.

SolarPlus Energy Intelligent Controller

Solar Plus delivers solar heating to households with no upfront cost, instead charging a fixed monthly fee for energy. This is managed through a proprietary integrated controller and management platform; enabling real-time energy demand management, remote management, troubleshooting and consumption reporting via the web. The capital cost for renewable energy is eliminated and homeowners move off their reliance on the grid.

Green Finalists for 2013

The Lightie

1st Place

The Lightie is an extremely efficient, patent-pending, test-tube shaped solar powered “light bulb”. It is a picosolar device, designed to bring affordable lighting to poor households that still use paraffin for their lighting needs. The Lightie’s innovative design has been crafted to screw on & fit flush through the mouth of a standard soda bottle, thus converting the bottle into a multi functional & waterproof solar powered lantern.


2nd Place

Entoprotein seeks to meet the challenge of rising animal feed prices by developing insect larvae-based protein that will compete with fish meal as one of the current staples, and lower the cost of livestock farming for emergent farmers.

Contra Rotating Wind Generator

3rd Place

The Contra-Rotating Wind Generator makes use of two counter rotating blade sets, revolving around a stationary shaft. Counter rotating blades produce high relative speeds, and along with placing the active part on the tips of the blades, the device can generate electrical current at low rotation speeds. In addition, the design of the mounting bracket allows the blades to turn into the wind exceedingly fast, further increasing efficiency and adding to average total charge.

Mellow Cabs

4th Place

Mellowcabs manufactures and operates attractive, electrically assisted, three-wheeled pedicabs. Mellowcabs are public transport vehicles, providing first and last mile transport services. The main source of income is not from carrying passengers but rather through selling advertising space on and in the vehicles. Mellowcabs have been designed to be very safe and extremely visible, and to offer optimum advertising space on an aesthetically pleasing design.


Aquatech by Miqube is a design for a highly portable, modular, eco-friendly, habitable survival module that will enable its users to easily transport, deploy and install a unit that is able to support their living needs in terms of energy, water and sanitation, without any dependence on infrastructure.


The SunGenius is a built-in solar oven mounted on a fixed structure on the north facing wall of a house in such a way that it forms a channel from the inside of the house to the inside of the oven.

Khaya Power Pack

The Khaya Power Pack (KPP) is the central component of a low-cost, convenient power system for areas with no grid electricity supply. Key system components include: * The Khaya Power Pack, a portable rechargeable battery designed to be sturdy and have a low potential for abuse. The battery itself can neither be over discharged nor quickly drained, because the Protection System prevents this.

Green Finalists for 2012


1st Place

Is an easy to assemble, easy to clean, safe, odourless, low cost, waterless toilet which is a sustainable alternative to polluting water through waterborne sanitation and pit latrines.

Low Energy LED Lighting

2nd Place

Are locally designed and developed LED lights which are drop-proof with very low heat emission, designed for solar or low-power environments such as informal settlements and rural areas or on-grid replacements.

Smokeless Coal

3rd Place

Is a combination of waste coal, clay and water to produce a smokeless energy source which burns for longer than normal coals.

Landfill Waste to Bioethanol

4th Place

Is a proposal for a commercial cellulosic bioethanol plant which utilises acid mine drainage waste, soft agricultural waste and landfill mass as input to generate ethanol as an output for the medical, fuel, and cosmetics sectors.

Handy Power Chargers

Handy Power kinetic chargers are simple and affordable plug-in solutions for keeping laptops, desktops, cell phones, lamps and radios working when there is no electricity.

Water Purification & Conservation

Is a portable water treatment plant that converts raw water into high quality drinking water and includes a mechanism to ensure that only a controlled amount of water is released at one time, preventing wastage.

The Leak-Less Valve

Is installed on existing toilets and stops the entry of water into the cistern when a leak is detected.

Solar Powered Aquaponics

Integrates three different technologies (aquaculture, hydroponics and solar power generation) to produce high-quality vegetables and fish in a soilless environment.


Are high-tech, electrically assisted human-powered vehicles that facilitate first and last mile transport solutions in a variety of contexts.

Hydro Electric Generator

Uses gas and hydraulic fluid to store energy for use in the production of electricity.

Green Finalists for 2011

Phatwa Senene

1st Place

Phatwa Senene won the top prize in the green category for The No.1 Button, a simple device that’s intended to reduce the amount of water wastage in RDP toilets. The No. 1 Button has the potential to save 2,052 litres of water a month in an average household. It can be easily installed on current toilets in less than 1 minute and without having to make any adjustments to the toilet.

OneGreen Engineering

2nd Place

Jan Davel of OneGreen Engineering won second prize for the OneGreen Dry Brayton Cycle, which uses heat generated from waste to produce electricity. It is unique as it uses no water, no gas treatment or scrubbing. The capacity is 0,2 to 2 MW per unit allowing a total plant potential of up to 20 MW.

3rd Place

Carel Snyman, director of won third prize for their Electric Bicycle concept, a peddle assist or pure electric bicycle platform. Working on electricity, these vehicles emit no CO2 and can easily be charged in community solar charging facilities.

William Harley

4th Place

The SHS Flywheel developed by William Harley was one of the finalists in the 2011 Green Theme of the Gauteng Innovation Competition.