Agenda

1. Agenda Technology of HCPV HCPV GaAs cell Efficiency HCPV system HCPV module Tracker Mobile application Cost superiority Quotation and lead time

2. Technology of HCPV Lightweight, cheap, plastic Fresnel lenses are used to concentrate light. Light must be dispersed over cell not focused onto one spot. Cells mounted into receiver with built in heat-sink to dissipate heat. Ephemeris or auto guider used to track the sun so that solar rays are incident to panels. Exotic materials used for PV cell. Economically viable since less material is used.

3. High Concentration PV --HCPV HCPV systems help reduce photovoltaic conversion costs, our aim is to have them reduced by half in a short term scenario. The PV modules in the HCPV system run at 500 times sunlight concentration. They are also three times more efficient than standard solar panels. Solar Systems technology also automatically tracks the sun so it can produce more energy per unit area than fixed solar panels. The solar resource is widespread, which means there are flexible options for location. The technology can be easily upgraded - as solar cell technology develops the plant�s PV components can be replaced. The technology can be deployed in different sized configurations from 1MW to over GW scale. The heliostats and receiver fields will be appropriately sized and distributed over a number of separate locations and matched to the electricity network and other local requirements. The power station is made up of repeatable units of the technology which enables high volume production and reduces risk associated with building a large power station. The first project will result in a cost reduction of electricity grid scale solar power by approximately 75 per cent relative to traditional PV technology.

4. GaAs Cell

5. Efficiency

7. HCPV module

11. Tracker 7.5 kWp Tracker specs Tracking Method: 2-axes azimuthal and elevational tracking. Control: Sequential control method by implementing a solar track calculation algorithm from the GPS position data. Tracking Accuracy: �3� or better. Tracking without sun: Automatic. Return Function: Automatic to the East after sunset, return to stow position when wind >= 45km/hr. Azimuthal Traction: 30 cm F rolling pin bearing with 360� rotation. Elevational Traction: Dual telescopic. Linear Actuators. Loading Capacity: 2000kg. Collecting Surface: up to 64 m2, plat form may be specified by customer. Tracker weight: Approximately 700 kg (excluding pole weight).

15. Mobile Application

16. Cost superiority Parameter PV panel Tracking HCPV Solar concentration 1x 500x Solar watts / C? 0.1w 50w Cell area / ? 10,000 / C? 20 / C? Cell efficiency 15% 37% DC watts / ? 150w 370w Cell cost / ? US$600 US$200 US$ / DC watt $4.00 $0.54 Angle to sun 0� � 90� 0� Solar envelope 180� 240� Generation profile triangle square Hot summer afternoon cell efficiency loss: 30% -5% electricity generation poor excellent US$ / AC kWh US$0.45 $0.13 � $0.04

17. Quotation & Lead time

18. Q & A