ABOUT US
Our Mission
To be the top-of-mind partner for new construction solar design and scalable solar operations.
We accelerate clean energy production, usage, storage, and delivery into the grid by helping solar businesses scale their impact faster.
In doing so, we strengthen the long-term sustainability of the solar industry.
Every day, we partner with solar companies across the installation ecosystem to drive that impact forward.
That’s the work. That’s the mission.
Our Values
How we operate and what you can expect working with us.
Partnership Mindset
We operate as an extension of your team, aligned to your goals and outcomes.
Education Over Pressure
We equip teams and customers to make informed decisions, not rushed ones.
Operational Excellence
We don’t just design, we build systems that improve speed, accuracy, and scalability.
Radical Transparency
Clear expectations, honest feedback, and no hidden complexity.
Built for Reliability
Every design and system is built to perform reliably in the real world, long-term.
Do Right by the Customer and the Industry
We prioritize long-term outcomes over short-term wins, even when it means saying no.
Built from experience scaling solar teams past $100M in revenue.
Trusted by solar teams nationwide to reduce soft costs, increase close rates, and scale more profitably.
How We Help
From Design to Scalable Systems
Design
- Solar Design (New Construction & Residential Layouts)
Proposal-ready Aurora layouts from builder plans so your team can move faster, present with confidence, and close more deals. - Tesla Solar Roof Project Intake & Design
End-to-end intake through Tesla submission so projects move cleanly from survey to install-ready layouts without delays or rework. - Commercial Modeling & Advanced Analysis
Accurate production and financial modeling to validate projects early, reduce risk, and improve deal confidence before execution.
Systems
- Aurora Solar Platform Optimization
Optimize your Aurora platform with standardized designs, pricing logic, and proposal templates that increase speed, consistency, and close rates. - Proposal, Pricing & Contract Automation
Connecting design outputs to pricing, proposals, and contracts, reducing manual work and accelerating speed to close. - CRM & Workflow Systems
Implementation and optimization of systems like Zoho and Salesforce. Increase pipeline visibility, automate workflows, and eliminate handoff friction from sale to install.
Scale
- Revenue Analytics & Performance Dashboards
Design and implementation of real-time analytics dashboards (Zoho Analytics, CRM reporting, and custom data models) to improve forecasting accuracy, track performance, and drive better decision-making across sales and operations. - Revenue & Operations Systems Consulting
Building scalable processes across sales, design, and operations – improving close rates, shortening sales cycles, and building more efficient, scalable operations. - Sales & Marketing Strategy Consulting
Refine your positioning, sharpen your messaging, and build go-to-market strategies that generate qualified demand, differentiate your brand, and increase conversion.
Most teams start with design support, then scale into systems, automation, and full operational infrastructure.
Meet the Team
John Sheldon II
Founder & Principal Consultant
John is a solar operator and strategist with 18+ years of experience across sales, operations, and business development. He has helped scale installation companies past $100M in revenue by improving close rates, shortening sales cycles, and building systems that drive predictable growth.
At GreatSun, John focuses on new construction solar design, Aurora Solar optimization, and building the infrastructure behind high-performing teams including: CRM systems, proposal workflows, pricing automation, and pipeline visibility.
His work is built for one outcome: helping solar companies move faster, close more deals with confidence and reliably install clean solar energy. He’s been inducted into the prestigious Marquis Who’s Who in America Biographical Registry and acknowledged as a Top Pinnacle Professional for his contributions to the field of Solar Energy.
john.sheldon@greatsunconsulting.com
(720) 443-0567
Maisha Sheldon
Director of Growth & Partnerships
Maisha has been in the solar industry since 2010, bringing deep experience in marketing strategy, relationship development, and go-to-market execution.
She leads how GreatSun connects with partners and clients, focusing on building trust, strengthening relationships, and creating clear, effective messaging that drives growth. Her approach blends creativity with strategy to help solar companies stand out while maintaining a strong, professional brand presence.
maisha.sheldon@greatsunconsulting.com
(702) 900-6707
★★★★★
What partners say
“Been working with GreatSun Consulting for over a year now. He’s always done an excellent job getting designs done accurately. Very timely, great communication. Would recommend him to anyone for your 3D design needs.”
Energy Consultant
Residential & Commercial Solar
U.S. Installer
★★★★★
“I had the pleasure of working with John and was thoroughly impressed by his professionalism, attention to detail, and genuine commitment to delivering outstanding results. From the beginning, he approached the project with a strategic mindset, taking time to understand the bigger picture and how his contributions would align with my business goals. What really stood out to me was his ability to go above and beyond – he didn’t just check the boxes or do the bare minimum. He offered thoughtful insights, refined details I hadn’t even considered, and made sure everything was polished to a high standard. His communication was always clear, respectful, and polite, making the entire experience smooth and enjoyable. He approached every interaction with integrity and patience, which made a big difference. If you’re looking for someone who truly cares about the quality of their work and the success of your project, I highly recommend working with John. I’m grateful for his support and look forward to collaborating again in the future.”
Owner
Residential Solar
U.S. Installer
WHY GREATSUN
Built by operators, not just consultants
We’ve led teams, built systems, and scaled solar businesses…not just advised them.
Speed without sacrificing accuracy
Proposal-ready designs delivered fast, with production estimates you can trust.
New construction focused
We specialize in working from builder plans, a niche most teams struggle to execute efficiently.
Systems that actually scale
From Aurora to CRM workflows, we build processes that improve close rates and reduce friction.
Simple, transparent engagement
Clear pricing, fast turnaround, no unnecessary complexity.