Herb Hayden, P.E. CEO and President, Southwest Solar Technology LLC Herb created Southwest Solar Technology LLC (SST) in 2012 to develop distributed-scale solar dish-based systems, including advanced Dish Concentrating PV (CPV), and related high efficiency combined heat-and-power (CHP) and solar thermal applications. The current SST CPV dish development is designed for a target rating 15 kW electric output, with 20-25 kW of byproduct heat available, using advanced integrated optics, thermal management and power conversion in a proprietary CPV module. An alternative application of the SST dish is 40 kW thermal power at higher temperatures. SST also includes expertise in advanced hybrid electronic/thermal power module R&D and manufacturing, dba Omni Power Modules. Prior to SST LLC Herb created SST Inc in 2008 to develop and manufacture a solar dish-based air turbine technology. A key accomplishment of that activity was the world’s largest commercial solar dish, over 320m2 collector area required for size of the turbine engine, and on-sun proof of concept demonstration and test of the solarized-turbine design, one of the few teams in the world that has operated an air turbine on sun. After the US economic slowdown in 2010 with a decline in US utility interest in large scale solar, the large dish-turbine development was halted in favor of the current distributed scale CPV Dish / CHP activity, leveraging the technology lessons-learned. From 1992 to 2008 Herb managed the Solar Test and Research (STAR) center for Arizona Public Service (APS), the largest electric utility in Arizona. This unique research facility was devoted to real-world demonstration of solar technologies and innovation. Herb led the development and installation of over six megawatts of innovative solar generation technology at multiple sites across Arizona. Much of this pioneering work lead directly to present day designs in PV trackers and CPV systems. This work included:

• Development of next-gen CPV designs using multi-junction cells, including the Dish-CPV system that was the world’s first grid-tied use of multi-junction CPV technology

• Development of the Amonix tracker/structural/system and large-module CPV designs. • Single-axis photovoltaic (PV) tracking systems, including the pioneering APS Prescott

Airport Project designs later acquired by SunPower and used around the world. • Development of a new single-axis PV tracker design, used for construction of a 2 MW

system at Denver International Airport in Colorado, and at Fresno Airport in California • Solar Dish Stirling demonstrations with SAIC and Solar Thermal Motors (STM). Two

operational dishes at APS STAR, one of which also operated at the Pentagon (US DoD) • Demonstration of solar hydrogen generation using the Dish Stirling systems, and

nighttime operation of the Stirling engines using the hydrogen that was produced • Technical review of solar trough and power tower system R&D and plant design • Advanced inverter and power conversion

In addition to larger grid-tied solar applications, Herb also led the development of the experimental APS Remote Solar Electric Service. This program provided off-grid solar power services to 50 homes and ranches in rural Arizona, as well as several unique larger scale “solar hybrid” PV-battery-diesel systems for military, national park and commercial customers in the US southwest and Mexico. Notable off-grid systems included the Dangling Rope Marina at Lake Powell, US Army Yuma Proving Grounds, and the wind-PV hybrid system at San Juanico, Baja Mexico. Herb was key in arranging intergovernmental cooperation in addition to technical conduct of the project. Herb created several patents related to solar tracking structures and control systems. His technology application, innovation and collaboration includes work with leading labs and R&D and manufacturing companies around the US. Herb has served on several solar work groups, including: DOE Concentrating Solar Power Peer Review Commission, 2002, IEEE CPV Standards Committee, and IEA Task 8 for Very Large Scale PV Power Generation Systems, Arizona Corporation Commission solar working groups. Herb has also provided testimony regarding large-scale solar generation to the US House of Representatives Committee on Science and Technology, 2007. Prior to his solar work, Herb performed project management and engineering for APS telecommunications systems, worked four years at Motorola Government Division in the development of highly advanced electronic systems. Herb served 3 years in the US Army in tactical microwave telecommunications systems. Herb is a PE in Arizona, having received his BS in Electrical Engineering with honors from Arizona State University in 1983. Patents and patent filings: • 7,647,924 System for Supporting Energy Conversion Modules • 6,662,801 Celestial Tracking Apparatus and Method of Controlling Wind Stow Therefor • 6,563,040 Structure for Supporting a Photovoltaic Module in a Solar Energy Collection

System • 6,559,371 High-Concentration Photovoltaic Assembly for a Utility Scale Power Generation

System • 2007/0012312 Structure for Supporting Energy Conversion Modules and Solar Energy

Collection • 2006/0243319 Clustered Solar-Energy Conversion Array and Method Therefor • 2003/0151505 Sensor Loop with Distributed Power Sources and Method Therefor • 13/206,258 CPV System and Method Therefor • Provisional patent for concentrating mirror design Papers, testimony and industry participation: • Member Arizona Governor’s Solar Energy Task Force (2011 – 2013)

• CPV semi-dense array design for dish and tower collectors; SPIE Optics + Photonics Conference 2012

• Testimony Regarding Large-Scale Solar Generation to the US House of Representatives Committee on Science, Space and Technology; 2007

• Analysis of Five Years of Field Performance of the Amonix HCPV System; PowerGen 2006 • Performance Parameters for Grid-Connected PV Systems; IEEE PV Specialists Conference,

2005 • Recent Progress and Future Potential for CPV Systems; World Renewable Energy Congress,

2004 • DOE Concentrating Solar Power Peer Review Commission, 2002 • IEEE CPV Standards Committee (past member) • IEA Task 8 for Very Large Scale PV Power Generation Systems (past member) APS Prescott Solar Power Plant, Prescott Valley Arizona 6 MW solar project design, with 3.7 MW completed of tracking PV and High Concentration PV (CPV) (2000-2006) Development and first time use of many designs that were used in commercial systems installed worldwide by others APS STAR Center, Tempe Arizona Most diverse and active utility solar research and test site in the world at the time (1992-2008). Included PV module testing, PV trackers, CPV and Dish Engine systems under test/demo operation