Sun harvester's concept of hybrid battery working in conjunction with a vehicle mounted solar array and alternator system architecture has gained some amazing results. Over the last 18 months a 20 ft lorry powering a very large digital sign and other on-board electrical appliances has yielded excellent results proving the unique technology can harvest energy from both the vehicle alternator and the solar panels. The next stage is to apply our architecture over a fuelled generator supply base on refrigerated vehicles. This will produce the data and key evidence on operational cost savings and the reduction in co2 emissions. On-going discussions are taking place to include a number of retail logistical companies to partner with Sun harvester in this study prior to its commercialisation into the vast refrigerated supply chain in the UK and worldwide.