Ground-mounted solar panel array installed beside a long site office building under a blue sky in the Philippines.

    ⚙️ Case

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    2022-06-07

200 kWh Energy Storage Microgrid for 24/7 Clean Power on Cagbalete Island - Philippines

Cagbalete Island, Quezon, Philippines

Commissioned:2022-06-07

Client:Community

  • 100 kW

    Hybrid Inverter

  • 200 kWh

    Battery Capacity

  • 65%+

    Diesel Reduction

  • 92%+

    Round-Trip Efficiency

  • Three workers in safety gear and helmets carefully install ground-mounted solar panels at a site, crouched in a dirt area.
  • Wide front view of neatly arranged ground-mounted solar panel arrays surrounded by site enclosures and greenery.
  • Three-panel collage showing engineers in safety vests connecting wiring on battery racks, inspecting an electrical box, and securing power cables.

Project Overview

Located on Cagbalete Island in Quezon Province, Philippines, this microgrid project deploys a Megarevo MPS100 100 kW hybrid inverter integrated with a 200 kWh lithium iron phosphate battery energy storage system. Commissioned in mid-2022, the installation supports continuous power for local households, small businesses, and community facilities, combining solar PV input to deliver stable 24/7 electricity and cut diesel generator usage by more than 65%.

The system provides peak shaving, seamless backup during grid outages, and high self-consumption of renewable energy, achieving over 92% round-trip efficiency. With modular design for easy expansion, the project enhances energy resilience, lowers operating costs, and advances the Philippines’ rural electrification and clean energy targets.

Challenge & Solution

Challenges

  • Unreliable power supply across remote island communities and facilities
  • Heavy diesel dependence increases fuel consumption and operating costs
  • Grid outages require reliable backup power for critical loads
  • Variable solar generation requires efficient energy storage and management

SUNPAL ESS Solutions

  • 100 kW MPS100 hybrid inverter coordinates multiple power sources
  • 200 kWh LiFePO₄ battery enables reliable renewable energy storage
  • Intelligent EMS supports peak shaving, backup, and self-consumption
  • 92%+ efficiency and modular design enable flexible system expansion

Key Technical Specifications

ParameterSpecification
Hybrid InverterMegarevo MPS100
Inverter Rated Power100 kW
Battery Energy Storage Capacity200 kWh
Battery ChemistryLiFePO₄
Round-Trip Efficiency≥92%
Operating ModeHybrid Solar / Battery / Grid / Backup
Diesel Generator Reduction≥65%
System ApplicationIsland Microgrid / Rural Electrification

Project Timeline

Feb 2022 | System Delivery
The MPS100 hybrid inverter, 200 kWh battery storage system, and supporting equipment were delivered to Cagbalete Island for project deployment.

Apr 2022 | System Installation
The engineering team completed battery, inverter, solar input, and power distribution installation for the island microgrid application.

May 2022 | System Integration
The hybrid inverter, battery storage, solar PV input, and backup power sources were integrated for coordinated energy management.

May 2022 | Testing & Commissioning
Engineers completed system testing, operational verification, backup switching checks, and energy management configuration before final handover.

JUN 2022 | Commissioned
The 100 kW hybrid solar + 200 kWh energy storage microgrid entered operation, providing stable 24/7 electricity for the local community.

Feedback from Project Manager

"The system has made a real difference for the community. We have been able to reduce diesel generator use significantly while keeping power available when it is needed. The installation went smoothly, and the team was very responsive during commissioning. We are pleased with the results and see good potential for expanding the system in the future."

Project Information

  • Location:

    Cagbalete Island, Quezon, Philippines

  • Application:

    Rural Electrification / Island Microgrid

  • Inverter Rated Power:

    100 kW

  • Battery Capacity:

    200 kWh

  • Battery Chemistry:

    LiFePO₄

  • Diesel Generator Reduction:

    65%+

  • Round-Trip Efficiency:

    92%+

  • Operating Mode:

    Hybrid Solar / Battery / Grid / Backup

  • Client:

    Community

  • Commissioned:

    June 2022

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