Residential Photovoltaic Energy Storage System
While grids green up and tariffs swing hour by hour, GRAMUU gives households a simple edge: a slim lithium-iron cabinet that drinks cheap solar by day, feeds the home at peak prices, and keeps essentials humming.
Maximize Your Solar Potential
Pack your rooftop’s extra daylight into a sleek home battery, then let it run the evening shift—less grid, lower bill, zero sunshine wasted.
30+
Years Industry Experience
1B+
Global Sales Volume (RMB)
4+
Core Product Categories
30+
Countries & Regions Served
Diverse Product Lines
Various specifications and comprehensive product portfolio, supporting full OEM customization to meet your market needs.
Our Advantages
Why Choose GRAMUU?
Industry-Leading R&D
Superior R&D investment compared to peers, and a forward-thinking R&D strategy, ensure that our products start at a level higher than current standards.
Premium Components
We carefully select highly reliable electronic components from top-tier global suppliers to ensure product quality is guaranteed from the source.
Advanced Manufacturing
First-class production facilities, precise production process control, and skilled workers ensure that the product manufacturing process is fully controlled.
Attentive Service
Our customers are our top priority. Providing excellent service not only increases customer satisfaction but also drives our future improvements.