Meet the Team

Leadership Team

Josh Howes

Chief Executive Officer (CEO)

David Diaz

Chief Strategy Officer (CSO)

Chris Nuttle

Chief Financial Officer (CFO)

Nelson Marin

Chief Technology Officer (CTO)

Kelly Moffett

Chief Operating Officer (COO)

Engineering

Brian Montenegro, P.E.

Executive Director, Energy Engineering

Steven Nuttle

Executive Director, Energy Tax Engineering

John Robinson ll

Executive Director, Residential Energy Programs

Mazu Lopez

Senior Engineering Manager

Otoniel Cantillo Ulloa

Software Engineer

Daniel Davila

Project Manager

Matt Sullivan

Associate Project Engineer

Dylan Ganci

Engineering Operations Coordinator

Vincent Casella

Associate Project Engineer

Chad Shafer

Project Engineer

George Essler

Project Engineer

Neal McKiernan

Project Manager

Gabriel Powell

Project Manager

Client Services

Peter Randolph

Vice President, ESCO Partnerships

Pete Jones

Energy Tax Consultant

Frank Reinhart

Vice President, Sales & National Accounts

Weston Lustig

Director, Business Development – Energy Tax & Engineering

Jon Leite

Director, Business Development – CPA & Real Estate

Steve Nanos

Vice President, CPA & Real Estate Partnerships

Jann Pierce

Senior Energy Tax Consultant

Mark Rossetti

Senior SALT Consultant

Gregory Hawkins

Energy Tax Consultant

Administration

Marla Lopez

Quality Assurance Analyst

Renee Yvette

Accounting Coordinator

Makenzie Howes

Administrative Coordinator

Latest Blogs & News

Walker Blue Selected as Approved Utility Allowance Provider by Florida Housing Finance Corporation

Blog, Energy Engineering, Section 8 & Public Housing | January 8, 2026

Case Study: Texas High School Geothermal Project Qualifies for $10M ITC

Case Study, ITC, Tax Incentives | January 6, 2026

Case Study: Kentucky High School Solar Project Qualifies for $126K ITC

Case Study, ITC, Tax Incentives | December 19, 2025

Year-End Planning for Energy Tax Incentives: Deadlines That Matter Going Into 2026

179D, ITC, Tax Incentives, Tips & Advice | December 18, 2025

Webinar: What Design Engineers Need to Know About the Investment Tax Credit (ITC)

ITC, Tax Incentives, Tips & Advice | November 18, 2025

Case Study: Michigan Middle School Solar Project Qualifies for $1.4M ITC

Case Study, ITC, Tax Incentives | November 18, 2025

Webinar: Cutting Operating Costs with Federal Energy Tax Incentives

ITC, Past-Webinars, Tax Incentives, Tips & Advice | November 10, 2025

Understanding the Apprenticeship Requirements for Energy Tax Incentives

179D, Compliance, ITC, Tax Incentives, Tips & Advice | October 30, 2025

Sponsoring: NAESCO New Orleans Regional Meeting, Feb 11

Industry Events | October 15, 2025

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