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Prometheus Solar

A Solar Electric Company Serving Northern Arizona

Testimonials

Ryan Holtz has been a great comfort to my concerns by explaining to me the workings and the life span I can expect out of my equipment, then proceeding to check everything for me and repair what is needed… We are more confident now, as the years have come and gone, thanks in part to all in Prometheus Solar for the kindness and the time taken to explain to us the workings of our equipment and the quick responses to any needs we have had concerning our equipment. – Lorene Horner ~ Happy Jack, AZ

Whatever review signifies multiples of 5s, that’s what we want to give you.  The men who came and installed our battery, etc., upgrades knew well what they were doing; they were courteous and patient with us, and we appreciate their help. That’s on top of the great service Prometheus has given us since 2012. Our genuine appreciation doesn’t show officially, but our gratefulness is nonetheless real! – Dick and Jeanice Conner ~ Merrill Crater

I just wanted to thank you guys for the great work.  It is a real blessing to finally find someone who can do it right.  It was a pleasure to watch a true professional install and resolve issues easily.  We will be looking for a place to buy in Ecuador this fall or winter, and you are our choice for solar.  We found Vilcabamba a wonderful area, with great people, amazing food, climate, etc. – Larry and Kathy Bassett ~ Paulden, AZ

Thank you for the informative bid. My mom was able to read it and understand it (which is a miracle most days). You were the most thorough person I came across during my solar bid process. You didn’t forget any detail, which to me is huge….I am really impressed. Thank you so much. — Kelly G .~ Flagstaff, AZ

Ahe hee (Thank You) for your expertise in installing the solar equipment that has brought great cool joy to our precious mom. We told her the sun was cooking and singing (radio) for her and cooling her off- and you made it all possible. – Marie B. ~ Teesto, Navajo Nation

Thank you for your assistance in streamlining Tuweep’s solar utility system. I appreciate all your hard work, extra time and energy, and dedication to perfection. Your work always exceeds expectation and is a perfected end product. – Todd S. ~ Grand Canyon National Park

Thank you again for taking such great care of us–and our solar system! It is doing so very well. – Kathryn S. ~ Fredonia, AZ

The system is working AWESOME! I haven’t even started my generator once… thank you. Your name will come up in conversation and be a regular reference to all I speak to. – Scott G. ~ Flagstaff, AZ

Many thanks Ryan, Today the system was absorbing at 11am, I was really excited!!!! I told Cherie she could use the vaccum any time she wanted to now!!!!~! I can’t thank you enough. – Dayle H. ~ White Horse Park, AZ

Check out our process here. Or learn more about solar here.

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Prometheus Solar - 5660 E. Penstock Ave., Unit #3 Flagstaff, AZ 86004 - info@prometheussolar.com - 928-527-1034

© Copyright 2025 Prometheus Solar. All Rights Reserved. Website by RC Vane

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Ryan Holtz

Owner & Off-Grid Specialist

Ryan graduated from West Point with a degree in Mechanical Engineering.

Ryan got started by studying with Solar Energy International and the Solar Living Institute. He loves developing and sharing solar technology. Ryan has taught solar energy classes at Coconino Community College, Willow Bend Environmental Center and all around Arizona. Some of Ryan’s favorite moments in solar work are watching a solar customer’s meter spin backward for the first time, and providing solar power to Navajo and Hopi families living off-grid who have never had electricity in their homes.

One of Ryan’s main goals is to make solar energy accessible to everyone by offering solar options that are affordable and easy to use. He acknowledges there are some hurdles to widespread solar energy use, but believes that with a little ingenuity like the Plug and Play Solar Kits, it will soon become a normal part of everyone’s daily life.

In his free time, Ryan is often outdoors. He enjoys mountain biking, running, disc golf, hiking and camping.  His favorite thing to do is sit around a campfire with his wife, Carolyn, and their dog Tully.

ryan@prometheussolar.com

Kelly Paduchowski

Grid-tied Solar Specialist

Kelly Paduchowski, a woman of many hats, is likely the first person you will reach when calling us. She will design a quality grid-tied PV system for you and will help install it too.Kelly began installing solar in 2007 and became a PV designer in 2009. She received her NABCEP certification in 2010. Kelly has taught Photovoltaic courses through Coconino Community College and for the National Park Service.Kelly’s other interests include mountain biking, camping, nutrition and well-being, and spending time with her husband and toddler.

kelly@prometheussolar.com

Jim Corning

Founder

Jim Corning’s professional life revolves around aviation, energy, and engineering. He was a student at MIT in the 1970s, and saw firsthand how the oil shortages of the ‘70s plunged our country into a place of scarcity. Since then, he has worked in the oil industry on the Arctic coast, built electric motorcycles, organized sustainable living fairs, taught classes on solar electric systems, and helped Ryan Holtz start up Prometheus Renewables. Jim’s goal is to help Americans find a way to energy abundance, and it gives him great pleasure to see Prometheus’ clients harvesting their own clean solar power, right at home.

When Jim charges his Chevy Volt with solar power, he enjoys the abundance of driving on sunshine. It’s very liberating.

When he’s not working, Jim loves hiking, mountain biking, flying and backpacking around the beautiful mountain west with his wife Holly.