Solar Air Conditioners-Zhejiang Eternal Hybrid Tech Co., Ltd.

SOLUTION · SOLAR AIR CONDITIONING

From one unit to many, turn sunlight into cooling first

For homes, shops, offices, and C&I sites: multiple air conditioners can share one front-end solar system, with grid coordination or storage selected by daytime and nighttime cooling needs, outage requirements, and investment limits.

Solid green · Solar power Solid amber · Grid power Cyan marker · Optional storage Solid teal · Air-conditioner output Dashed gray · Inactive branch

REAL-TIME HYBRID COOLING

Use sunlight first; let the grid fill only the gap

Rooftop solar feeds cooling first through the DC bus. When changing cloud cover reduces solar output, the grid supplies the missing power in real time so indoor cooling remains stable within the configured operating range.

On a sunny office rooftop, 90 percent solar and 10 percent grid power cooperate through Eternal HS3000 to drive the air conditioner steadily

PARAFLOW SHARED ENERGY

One solar system supports multiple standard-priced air conditioners

Paraflow centrally manages solar energy at the front end and distributes it dynamically according to room demand. When an empty room stops cooling, available solar power shifts to the units still running.

Three hotel rooms share one rooftop solar system and one Eternal HS3000; two rooms are cooling while the empty room branch is inactive

OPTIONAL ENERGY STORAGE

Add storage only when needed and use daytime surplus for night cooling

When daytime cooling demand is low and solar energy remains available, surplus power can charge optional storage. At night, it can support standard air conditioners according to critical rooms, target duration, and load priority.

A day-and-night split scene: solar charges optional storage through Eternal HS3000 by day, and storage supports bedroom cooling at night

SOLAR-FOLLOWING OUTAGE MODE

During an outage without storage, the compressor can still follow sunlight

After a daytime grid outage, once available solar power exceeds the minimum operating threshold, the compressor can adjust smoothly with solar output and reduce repeated starts and stops.

In a bright workshop with the grid cabinet offline, outdoor solar drives the air conditioner through Eternal HS3000 while a sun-and-cloud curve shows compressor output following available solar power

CONFIGURATION · CHOOSE WHAT YOU NEED

Storage is optional—choose by actual usage hours

First determine whether cooling demand occurs mainly by day or night, then decide whether to add storage based on outage frequency, target runtime, and investment limits.

No-storage configuration

Best suited to daytime cooling loads

The system uses available solar first, with real-time grid support when the grid is available.

Simpler initial configuration with less unnecessary battery investment
Balance solar utilization and target cooling while the grid is available
Follow sunlight during daytime outages after minimum conditions are met

Optional-storage configuration

Add nighttime cooling and outage capability

Store surplus daytime solar and support evening use according to storage capacity and load strategy.

For homes and projects with defined nighttime cooling needs
Design around critical rooms, target duration, and load priority
Actual runtime depends on usable storage, ambient temperature, and load

Not sure which configuration fits? Size the system by air-conditioner count, usage hours, and local solar conditions.

Discuss your configuration

SOLAR AC SYSTEM · LEARN MORE

Explore the complete solar air-conditioning solution

Visit the Eternal Watt website to learn more about energy coordination, compatible products, and project support for solar air conditioning.