Sulas Industries has developed a groundbreaking approach to solar tracking that uses no motors, gears or electronics. Sulas’ patented HelioDrive technology uses the power of the sun, acting on a small amount of phase change material through simple optics, to actuate a single moving part to accurately and cost effectively track the sun's path across the sky. The large hydraulic force generated by the HelioDrive can be used to rotate a collection of photovoltaic (PV) panels, allowing them to follow the sun and increase their energy yield. The HelioDrive is highly scalable and has the capability to be cost effectively applied to projects ranging from a single solar panel to large-scale utility level solar projects. By removing the cost and reliability barriers that have traditionally inhibited the use of solar tracking, and by significantly reducing upfront, operating and maintenance costs, the Sulas HelioDrive has the potential to become the industry standard for reliable, cost-effective solar tracking.