Marathon Development, LLC

05/29/2026

When building inspectors and municipal officials need standby generators or electrical work, they call MDL Generator Supply.

We are proud to have completed projects for multiple building inspectors and officials.
That level of trust doesn’t happen by accident — it comes from experience, professionalism, and doing the job the right way every time.

If the people who inspect the work trust MDL Generator Supply, you can too.

⚡ Licensed Electrical Services
⚡ Kohler Standby Generators
⚡ Expert Installation & Service
⚡ Trusted by Industry Professionals

Contact MDL Generator Supply at 803-233-2563 today for your backup power and electrical needs.

05/25/2026

This Memorial Day, we honor and remember the brave men and women who made the ultimate sacrifice for our freedom.

From all of us at MDL Generator Supply, thank you to those who served and to the families who continue to carry their legacy. Wishing everyone a safe and meaningful Memorial Day weekend.

05/22/2026

MDL Generator Supply is excited to team up with Winters Electric to power progress in Rock Hill School District Three. By supplying industry-leading Kohler generators, we are helping ensure schools stay operational, secure, and ready for anything.

When reliability matters, MDL delivers—providing trusted power solutions that keep our communities moving forward.

Contact us today at 803-233-2563 or visit mdlgeneratorsupply.com to learn how we can keep your home or business powered with confidence.

Marathon Development, LLC provides generator sales, installation, repair, and service for Kohler and Cummins generators across South Carolina.

05/21/2026

Be ready before the next outage. Stay cool during the summer heat with reliable standby power.

05/11/2026

Thinking about installing a standby generator for your home or business? Ask yourself this: do you really want to trust a long-term investment to the cheapest bidder?

A standby generator is more than just a purchase — it’s an investment in your home, your business, your comfort, and your peace of mind for years to come. You need a company you can rely on long after the installation is complete.

At MDL Generator Supply, we may not be the cheapest option, and we’re okay with that. Our focus is on doing the job the right way with proper code compliance, manufacturer specifications, clean appearance, safety, and long-term reliability.

Our own technicians complete the entire installation from start to finish. We do not subcontract our jobs out. When you choose MDL Generator Supply, you get our team, our workmanship, and our commitment every step of the way.

We’re not just selling you a generator — we’re partnering with you for your long-term energy independence.

If quality and peace of mind matter to you, give MDL Generator Supply a call today.

05/08/2026

Keep your generator ready when it matters most ⚡

At Marathon Development, LLC, we offer professional load bank testing to ensure your generator performs at full capacity when you need it. Regular testing helps identify hidden issues, prevents unexpected failures, and keeps your system running efficiently and safely.

Whether you’re preparing for storm season or maintaining critical backup power, our team delivers reliable, thorough testing you can trust.

Don’t wait for an outage to find out there’s a problem—schedule your load bank test today.

Call us to get on the schedule!

04/24/2026

Power up your adventures with MDL Generator Supply! ⚡️

With the recent major recall affecting Generac portable generators, now is the perfect time to make sure your equipment is safe, reliable, and ready when you need it most. Don’t let unexpected issues leave you in the dark—upgrade with confidence.

We’ve got Cummins portable generators IN STOCK and ready to go—just in time for camping season, tailgating, and all your outdoor plans. Whether you’re deep in the woods, cheering on your team, or hosting the ultimate backyard gathering, you can count on dependable power.

🔥 Why choose a Cummins portable generator?
• Proven, trusted performance
• Quiet operation—ideal for campsites & events
• Easy to transport and set up
• Built with safety and durability in mind
• A reliable alternative you can feel confident using

Inventory is on hand and ready to go — but it won’t last long. Stop by MDL Generator Supply or message us today to secure yours before your next trip.

MDL Generator Supply – Power you can count on, wherever life takes you.

04/20/2026

⚡️ Don’t wait for the next outage—be ready with reliable backup power from MDL Generator Supply!

Right now, we’re offering Kohler Generators with a FREE 10-Year Warranty—giving you long-term peace of mind. 🏡🔌

💰 Flexible financing available:
• Payments starting as low as $175/month
• 12 MONTHS ZERO INTEREST option available

That means you can protect your home and family today without breaking the bank.

✅ Automatic backup power when you need it most
✅ Trusted performance from a top-tier brand
✅ Affordable options to fit your budget

⏳ Hurry—this promotion ends May 15, 2026!

Storm season, unexpected outages, or just wanting uninterrupted comfort—now is the time to invest in dependable power.

📍 Contact MDL Generator Supply today for a free quote or to learn more!
💬 Message us now and let’s get your home protected.

MDL Generator Supply – Powering your peace of mind.

04/17/2026

Exciting progress in Aiken! Marathon Development, LLC is proud to support the Aiken SPCA Albrecht Center by installing a new Cummins standby generator and transfer switch💡🐾.

This powerful system will ensure the center can keep its lights on, systems running, and animals safe—no matter what the weather brings. We’re honored to contribute to a project that helps the community care for its four-legged friends!

03/20/2026

⚡ JUST ARRIVED — LIMITED STOCK! ⚡
The Cummins Onan P11000iTF tri‑fuel portable generator is finally here — and it’s ready to power anything, anywhere!

⚡ Tri-Fuel Flexibility: Runs on gasoline, propane, or natural gas.

🔌 Heavy-Duty Power: Includes a 50AMP outlet for big jobs and RV hookups.

🏕️ Perfect For: Emergency backup, camping, tailgating, construction sites, food trucks, or anywhere you need reliable remote power.

These won’t last long—stop by today or call to reserve yours before they’re gone!