Hosted By:
srp logo no tag

Generators; Invasive Mussels; Historic Preservation

CLEAN CURRENTS 2026

Time: 2:30 PM - 3:30 PM

Day: 9/23/2026

Room Number: CC Central: Intelligence Theater

New: Add Sessions to Your Calendar

Interested in a session? Click “Add to My Calendar” to save it and stay on schedule. Available on mobile and desktop. Calendar Note: The event may download as an .ics file first. On mobile, tap the downloaded file to open it in your calendar app. On desktop, open the file to add the event to your calendar.

This session features the following presentations:



Click a presentation title below to jump to its details:
Ultra-low Partial Discharge - Comparison of New and Old HV Winding Electrical Insulation Performance
How ASI Marine Protects Hydropower from Invasive Mussels
The Advisory Council on Historic Preservation's (ACHP) Anticipated Regulatory Changes and Likely Effects for Hydro Developers/Licensees

Ultra-low Partial Discharge - Comparison of New and Old HV Winding Electrical Insulation Performance
presented by Arwyn Thomas, PhD, Preformed Windings, and Ratanak So, PhD, U.S. Army Corps of Engineers



This presentation provides insights into the development of ultra-low partial discharge insulation systems to increase the life of hydro generators and improve reliability. It provides direct comparisons of new and old windings from the Chief Joseph facility.

How ASI Marine Protects Hydropower from Invasive Mussels
presented by Dan Butts, ASI Marine



Zebra, Quagga, and now Golden mussel are already moving through North American waterways, finding intakes, penstocks, and fire protection systems before most hydropower operators have a program in place. Drawing on nearly 40 years managing invasive mussel programs, ASI Marine lays out a proven Risk Assessment, Monitor, Control framework built to keep hydropower assets running.

The audience will walk away with three things:

-- 1. Certainty that mussel infestation is a matter of when, not if

-- 2. A repeatable framework of: Risk Assessment, Monitor, Control, for getting ahead of it

-- 3. Proof, at scale, that the framework holds up on a real hydropower asset

The Advisory Council on Historic Preservation's (ACHP) Anticipated Regulatory Changes and Likely Effects for Hydro Developers/Licensees
presented by Troutman Pepper Locke



This presentation focuses on anticipated changes to the Advisory Council on Historic Preservation's regulations governing consultation under section 106 of the National Historic Preservation Act. The audience will benefit from hearing about how these proposed changes, which are expected to be significant and far-reaching, will affect hydropower facilities, including the consultation process required for license amendments and relicensing actions.

Sponsored by:



ASI Logo

Preformed Windings Logo

TPL Logo



Image of Generators; Invasive Mussels; Historic Preservation
Tyler Gipson

Session Leader

Hydropower Engineer at U.S. Department of Energy (DOE)

Image of Generators; Invasive Mussels; Historic Preservation
Arwyn Thomas

Speaker

Chief Technical Officer at Preformed Windings

Image of Generators; Invasive Mussels; Historic Preservation
Ratanak So

Speaker

Electrical Engineer, Hydroelectric Design Center (HDC) at U.S. Army Corps of Engineers

Image of Generators; Invasive Mussels; Historic Preservation
Dan Butts

Speaker

Vice President, Biofouling at ASI Marine

< Back to Program