Saisi x Indonesia’s Obi Island | Saisi Synchronized Clocks Safeguard Grid-Connection of PV Project on Obi Island, Indonesia

A new wave is surging in the Southeast Asian green energy sector! The distributed photovoltaic (PV) project on Obi Island, Indonesia, equipped with Saisi’s clock synchronization "intelligent core", has been successfully connected to the grid, serving as a key pillar in Indonesia’s energy transition strategy.

I. Obi Island, Indonesia – A Benchmark Isolated-Network Green Power Project

2026 marks a critical watershed in Indonesia’s energy strategy: starting in April, Indonesia has fully suspended imports of C48 diesel and accelerated its national goal of "100GW of PV installed capacity", striving to break away from fossil fuel dependence and safeguard energy sovereignty. As a core project under the Belt and Road Initiative and a key base for Indonesia’s new energy vehicle battery material industrial cluster, the distributed PV project on Obi Island is a vital component of Indonesia’s energy transition blueprint. Upon completion, it will generate over 40 million kWh of electricity annually and reduce carbon emissions by more than 41,700 tons per year, directly supporting Indonesia’s accelerated target of completing energy transition in 3–4 years.

However, constrained by geographical conditions, Obi Island is remotely located, and its park power system has long operated as an isolated network relying on captive power plants, forming an independent microgrid model of "PV + captive thermal power". Unlike conventional power stations connected to the main grid, the output of off-grid PV fluctuates drastically with solar radiation. Inverters and thermal power units must coordinate in real time to maintain stable voltage and frequency – any time deviation could lead to system instability.

II. Green Power Launches on the Island, Where Precise Timing Is Paramount

As a distributed PV project far from the mainland grid, Obi Island features a complex environment with high temperature, high humidity, frequent grid fluctuations, and geographically dispersed equipment. In this context, precise timing has become essential for the stable operation of the project.

Leveraging three mature and reliable technological strengths, Saisi power synchronization clocks precisely meet the project’s timing requirements and safeguard the green power project on Obi Island.

Dual-Source Redundancy for All-Weather Stable TimingSaisi’s synchronized clock system adopts redundant backup of BDS + GPS dual satellite signals with seamless automatic switching. Even if one satellite signal is interrupted by island cloud cover or electromagnetic interference, high-precision timing remains uninterrupted. Equipped with Saisi’s ultra-high-stability oven-controlled crystal oscillator (OCXO), the device sustains accurate time output even when external signals are lost.

Full-Link Synchronization for Distributed ScenariosIn response to the project’s multi-regional, distributed layout, Saisi synchronized clocks are equipped with abundant I/O interfaces including IRIG-B, dry contact pulses, DCF77, TTL, NTP, and PTP. They provide unified time signals to hundreds of PV devices, monitoring terminals, and protection devices simultaneously, achieving precise time synchronization across power generation, collection, transmission, and regulation, ensuring efficient grid integration of distributed PV.

Highly Immune Design for Extreme Island EnvironmentsAdopting an industrial-wide temperature design (-10℃ to 60℃), the equipment operates stably under extreme conditions. It has passed power automation product type tests, electromagnetic compatibility (EMC) certifications, and international CE certification. Featuring moisture-proof and anti-electromagnetic interference capabilities, it reliably withstands Obi Island’s high-temperature, high-humidity, and high-salt-spray climate.

III. Saisi Time & Frequency Illuminates the Globe, Forging Ahead with Independent Innovation

The successful implementation of the distributed PV project on Obi Island, Indonesia, represents a major breakthrough for Saisi in the overseas new energy sector. It not only validates the adaptability of Saisi’s clock synchronization solutions in off-grid PV and extreme island environments but also provides a replicable "Saisi Solution" for energy transition in similar island and remote regions worldwide.

As spring tides rise, so does the momentum of progress. As a leading enterprise in China’s time-frequency synchronization industry, Saisi centers on technological independence, boasting full industrial chain self-reliance – from clock chips, crystal oscillators, and atomic clocks to complete clock systems. With continuously optimized product performance, Saisi is steadily expanding into the global market.

Saisi Global Footprint

To date, Saisi’s clock synchronization technologies and product solutions have served more than 30 countries across four continents. From green power stations in Southeast Asia to the Addis Ababa–Djibouti Railway artery in Africa, and metro networks in Mexico, Saisi uses precise time-frequency technology to connect the "time pulse" of global interconnection. Moving forward, Saisi will continue to forge ahead, writing new chapters in independent innovation and global expansion.