“No More Brownouts: How a Farmer in Palawan Keeps His Business Running 24/7 with the CM-N Series Hybrid Inverter”

Case Study: Reliable Power for a Typhoon-Prone Island

Location: Barangay Bacungan, Puerto Princesa, Palawan, Philippines
Date: March 15, 2025
Person: Ricardo “Ricky” Morales, 48, a rice farmer and small grocery store owner

Background: Living with an Unstable Grid

Palawan is known for its stunning natural beauty, but its remote location means frequent power interruptions. For Ricky Morales, who runs a sari-sari store and a small rice mill, every brownout meant spoiled goods, lost income, and frustrated customers.

“Every week, we had at least two blackouts,” Ricky recalls. “Sometimes they lasted 6 to 8 hours. My refrigerator would defrost, rice mills would stop mid-cycle, and I had to rely on a noisy, fuel-guzzling generator just to keep the lights on.”

The local grid voltage also fluctuated wildly—from 170V to 280V—damaging sensitive appliances. On top of that, Palawan’s hot, humid climate (temperatures up to 36°C) and frequent typhoons made outdoor equipment rust and fail quickly.

The Challenge: Finding a Durable, All-in-One Solution

Ricky needed a power system that could:

• Run his refrigerator, rice mill, lights, fans, and security cameras.

• Switch instantly to battery or solar when the grid failed.

• Withstand high heat, humidity, and dust from unpaved roads.

• Be affordable and easy to maintain without technical support.

He had tried cheap inverters before, but they broke down within months. “They couldn’t handle the surge from my rice mill motor,” he says.

The Solution: CM-N Series Off-Grid Hybrid Inverter

In January 2025, Ricky installed the CM-3500-24N (3.5kW) model from the CM-N Series. The system included:

• 4 pcs of 410W solar panels (total PV power 1,640W)

• 2 pcs of 24V gel batteries (200Ah total)

• The CM-N inverter with built-in 100A MPPT and detachable dust cover

Why this product suited Palawan perfectly:

The Result: Zero Spoilage, Lower Bills, Peace of Mind

After two months of use, Ricky’s life has changed:

• No more spoiled goods. The refrigerator runs continuously, even during 8-hour brownouts.

• Lower electric bill. His monthly utility bill dropped from ₱4,500 to ₱1,200 (savings of 73%).

• Rice mill works full time. The 5-second overload protection handles the mill’s startup surge without tripping.

• No generator noise or fuel cost. The inverter’s 93% battery-to-inv efficiency keeps his batteries charged with just 3–4 hours of sun per day.

“Last week, Typhoon ‘Ambo’ knocked out power for two days,” Ricky smiles. “My store stayed open. Neighbors came to charge their phones and buy ice. I even sold more rice because I could mill it on the spot.”

He also loves the Wi-Fi remote monitoring (optional). “I check my solar production and battery level from my phone while I’m working in the field.”

Community Impact

Inspired by Ricky’s success, three other families in Barangay Bacungan have ordered the same CM-N Series inverters. Local electricians are now being trained to install and maintain them.

“This is not just a product,” Ricky says. “It’s a lifeline for islanders like us. We no longer wait for the grid to fix itself. We have our own power plant.”

Key Selling Points for the Philippines

• ✅ Built for tropical heat and dust – detachable cover + wide operating temp (-10°C to 55°C)

• ✅ Handles voltage swings – 90–280VAC input range for home appliances

• ✅ Typhoon-ready – PV input up to 500Vdc allows long DC runs from panels to inverter (safe and efficient)

• ✅ Max charge current 100A – fast charging from solar + AC together

• ✅ EQ function – extends battery life in off-grid areas