Find 1stess on Facebook & LinkedIn | Energy Storage Solutions

For energy storage importers, procurement teams and EPC contractors, evaluating a manufacturing partner involves more than comparing product prices. Product coverage, technical coordination and responsive communication all matter when planning a residential or commercial energy storage project.

1stess invites professional buyers to search “1stess" on Facebook and LinkedIn and connect with our team to discuss product requirements, sourcing plans and project needs.

As the energy storage brand of Shenzhen First Tech Co., Ltd., 1stess is a one-stop solution manufacturer for residential, commercial and industrial energy storage systems. Our core portfolio includes hybrid inverters, home batteries and containerized battery energy storage systems.

Hybrid Inverters

For solar installers, distributors and EPC contractors, inverter selection starts with the application. Share your grid conditions, power requirements and battery configuration with our team to discuss suitable solar hybrid inverter options and system compatibility.

Home Batteries

Our residential battery storage portfolio supports buyers serving the home energy storage market. Discuss your required battery capacity, installation format and inverter communication requirements to identify an appropriate configuration for solar self-consumption and backup power applications.

Container BESS

For commercial and industrial energy storage projects, 1stess provides container BESS solutions with project-specific configuration support. Requirements may include power and energy capacity, PCS and EMS integration, cooling, fire protection and site conditions. Applications include peak shaving, load shifting, solar energy storage and backup power.

A clear specification at the beginning helps buyers coordinate the stages that follow.

1stess provides end-to-end technical service support, covering solution design, product selection, system configuration, delivery coordination, installation guidance and after-sales communication.

With 100 MWh+ of project experience and a founder with 15+ years of industry experience, we help professional buyers discuss both product requirements and practical project considerations.

For procurement teams reviewing compliance, our team can provide applicable certification documentation for the selected products and discuss target-market requirements.

1stess focuses on overseas markets and supports professional buyers through export-oriented communication and order coordination.

Our service response commitment is within one hour on weekdays and within four hours on weekends. Financing options can also be discussed for large orders, subject to order assessment and agreed terms.

Whether you are expanding a distribution portfolio or sourcing equipment for an EPC project, early communication helps clarify technical scope, documentation needs and delivery expectations.

Find 1stess on Facebook and LinkedIn to connect with our team.

To help us respond with relevant information, send your target country, application, required power and battery capacity, purchase quantity and expected delivery schedule.

From hybrid inverters and home batteries to container BESS, connect with 1stess to discuss your next energy storage requirement.