Our Team


The firm’s Principal, William Bethurum IV PE is recognized as an expert in the design of large scale facilities. Mr. Bethurum has more than 29 years experience  throughout a wide variety of industries including oil & gas, industrial process and manufacturing, water/wastewater, advanced technology, governmental, commercial, mission critical facilities and data centers.

Returning to Southern California after college Mr. Bethurum began his career designing oil and gas facilities while studying finance at Cal State Long Beach where he was a member of Beta Gamma Sigma academic honor society with 4.0 GPA. During his first year out of college he was lead engineer on a $30M water processing project for a major Los Angeles refinery. After returning to Arizona in the mid ’90s he joined with former employer Jacobs Engineering to design local microelectronic facilities. He started Industrial Power Engineering Corp. (later renamed General Power Engineering) in 1996. A subsequent partnership with Day and Zimmermann Int’l. led to a lead engineering position at Intel Fab 12 and design of large scale microelectronic facilities including a $60M microelectronic facility for Motorola in Austin, TX. In 2006, partnering with local process engineer, RT Engineers, he engineered a $90M, 8MGD wastewater treatment facility expansion for the City of Surprise. In 2012 he completed an $80M mission critical facility located in Phoenix. Major clients include or have included,

Motorola Phoenix, AZ/Austin, TX, Arco Los Angeles Refinery, TRW, Mobil Torrance Refinery, Southern California Gas Co., Maricopa County, Shutterfly, Southern California Edison, Medtronic, SAS, City of Surprise, City of Phoenix, ON Semiconductor, State of Arizona, Valero, WL Gore, Iridium, Nextel, Praxair, ASM, YMCA, Tokyo Electron, FujiFilm, Hilton Worldwide, and many regional architects, private corporations, and investors.

By way of industry credentials, Mr. Bethurum is a graduate of Arizona State University and is a registered electrical engineer in the states of Arizona, California, Nevada, Colorado, and member of National Society of Professional Engineers, International Association of Electrical Inspectors (Associate), and Illuminating Engineering Society.

Personal interests include architectural design, construction, running and strength training, and golf. He has two daughters, Isabella, and Gianna. Pets include two English Yellow Labs, Baz and Tobe. Personal accomplishments include a solo descent of KT22 peak in Squaw Valley in near darkness at the age of 10. A former surfer, skater, and bass player. A life long LA Dodgers fan.

Lubianca Rasmussen has 15 years of office administration in several sectors such as medical, non-profit, oil & gas and construction. She enjoys facing new challenges which are like “solving puzzles”. She appreciates learning new processes, procedures and discovering new platforms. No two days are ever the same and helping a variety of people both internally and externally become more effective is extremely rewarding.

Her strength lies with making a difference in streamlining processes and procedures for organizations to run smoothly and more efficiently.

She is an Alumni of The American Musical and Dramatic Academy of NYC and music is a part of her daily life. She often sings “Ave Maria” for events such as wedding, funerals and quincañeras. She loves spending time with her family, discovering new restaurants especially locally owned with unique menus and visiting new places in her area like museums, theaters and parks.

East Saile – Senior Technical Designer. Enjoys macro & landscape photography, off-roading, jet-skiing and is an avid sports fan.

Derrick Tang – Electrical Engineer. A graduate from Arizona State University with a degree in Electrical Engineering. Enjoys to travel around the world, experience different cultures and try different foods.

Angela O’Dell – CAD Technician. Has 6 years industry experience. Enjoys hiking, fishing, comedy, and cooking.

Irina Ambris- Revit Operator/ CAD Drafter. Native to AZ. Has 6yrs experience in design and remodeling.  Enjoys abstract painting, designing, riding horses, singing Mariachi and driving scenic routes to the beach. 

Cruz Espinosa – Electrical Designer.  A student at Arizona State University. Enjoys playing the guitar, snowboarding during the winter, and taking trips to California to go surfing.

Kunal Bansal – Construction and Technical Design Intern. I am a Senior at Arizona State University. I enjoy doing CAD, working on small projects and being outdoors. I absolutely love soccer and watch and play it religiously. I can talk about it all day but I like watching any sport. I like being put in challenging situations to come up with creative solutions. I enjoy learning new things in different fields and gaining different experiences, any experience is a learning experience.

Avanti Malikar – Project coordinator. A student at Arizona state university Construction management.  Globe trotter , love exploring things, travelling, Epitome of fun loving and optimism. Being Versatile, Integrity, self believe and having a positive attitude are the guidelines of my life 

Sahil Kale – Project coordinator. I am from Nagpur city which is the center of India and is also called the orange city of India. I am pursuing a master ‘s in Construction Management and Technology, from Arizona State University. For fun I like gardening, playing any kind of sports and riding a car.

Volta Alumni

Lucas Acton –  Jan. 2021 to Apr. 2022

 “If you come out of an internship with design experience as vast as Volta allows, I think you are probably more experienced than most grads that have been at a large engineering company for multiple years given the nature of those large companies not giving much responsibility to new grads or interns. I’ve learned a lot during my time at volta, and feel that volta has prepared me for the workforce ten fold more than what school or any other internship ever would have.”