Zero Export & Grid-Limit Solution
Solar Storage for Homes That Must Keep Energy from Flowing Back to the Grid
Anti-Backflow · Self-Consumption · Grid Compliance
Use solar locally, store more surplus at home and dynamically limit output to suit zero-export and grid-curtailment requirements.
User pain points
Grid rules can make ordinary solar output a compliance risk.
When feed-in is prohibited or tightly limited, a household needs control that responds to real-time demand—not an output setting that stays fixed while loads change.
Export can be prohibited or severely limited.
Uncontrolled surplus power can create a barrier to installing or expanding home solar.
Household demand changes every minute.
Static output limits cannot always prevent unwanted reverse flow as appliances turn on and off.
Surplus solar should not simply be wasted.
Without storage coordination, users can lose the value of energy they have generated.
Zero-export control logic
Measure demand. Regulate output. Keep more solar at home.
GEECO control coordinates solar devices and storage against household load, with a fast response designed to keep unwanted energy from reaching the grid.
SenseRead whole-home consumption and grid direction.
RegulateAdjust micro-inverter and micro-storage AC output dynamically.
StoreDirect suitable surplus energy into the battery for later use.
GEECO CONTROLFast output adjustmentOur solution
Our solution
Anti-backflow controller, micro-inverter and micro-storage configuration for zero-export, grid-limited and self-consumption markets.
Reliable anti-backflow control meets zero-export requirements.
GEECO’s patented 100 ms reverse-flow interruption technology dynamically regulates output to avoid surplus power being sent to the grid, supporting local grid-connection requirements.
A patented anti-backflow controller makes the whole system plug and play.
The dedicated controller senses household electricity demand without requiring the same home-grid electrical connection changes as a meter, enabling practical whole-home plug-and-play control.
Reliable through-wall communication without WiFi dependency.
Long-wave communication and a proprietary carrier-modulation algorithm provide strong interference resistance and signal sensitivity for reliable communication through walls without depending on WiFi.
Precisely regulate grid-tied output for local feed-in limits.
As household load changes, the system adjusts the AC output of micro-inverters and micro-storage units in real time to avoid exceeding local permitted feed-in power.
Built-in EMS stores surplus energy and reduces waste.
When household electricity use is lower than PV generation, the system routes suitable surplus energy into the battery for night-time or high-tariff use, increasing solar utilization.
Recommended product solution
Anti-Backflow Controller + Micro-Inverter + Micro Storage
For zero-export, grid-limited and self-consumption-focused household solar markets.
Configuration direction
Choose control and storage around your existing solar setup and local grid rule.
Control design should follow your grid requirement.
Send your local feed-in rule, existing solar equipment, household load profile and desired storage plan for a starting configuration.
Request System MatchingDifferentiated highlights
Differentiated highlights
100% reverse-flow interruption achieves functional zero export.
Compared with the reverse-flow delay of conventional controllers, GEECO interrupts reverse flow within two grid cycles to prevent the meter from recording exported electricity.
Long-wave wireless communication can pass through three walls.
Rather than relying on a router or conventional WiFi, long-wave communication provides more reliable signal transmission.
The anti-backflow controller is plug and play like a home appliance.
The controller is designed for simple installation and whole-home electricity sensing without requiring complex power-meter modification.
Grid-limit settings adapt to different regional rules.
Feed-in limits can be configured around local policy, supporting zero export, limited-power grid connection and other market requirements.
Overload monitoring and safety protection protect household circuits.
The system monitors current and load changes to reduce line-overload risk and improve household PV operating safety.
Customer testimonials
Compliant solar can still be useful solar.
Somchai P., Thailand: “We can use solar without worrying about feed-in.”
“The system adjusts to what the house needs, so more energy stays with us.”
Application: micro-inverter + anti-backflow controlLucía G., Argentina: “Daytime energy is no longer simply lost.”
“With storage, more of the solar we generate can be used later at home.”
Application: storage-enhanced self-consumptionRafael S., Brazil: “The system fits a changing grid policy.”
“We focus much more on using our own solar rather than exporting it.”
Application: regulated home solar outputCertification support
Documentation for your final system scope.
Confirm reports and installation requirements against local regulations and selected equipment.
Request Certification Documents
System matching
Keep solar useful—and within your grid rule.
Tell us your export restriction, existing equipment and household energy goal.
Get a System ProposalFAQ
Questions about zero-export solar.
What does zero export mean?
It means household solar prioritizes local use and the system controls surplus power to avoid feeding electricity back into the public grid.
Why is an anti-backflow controller needed?
When PV generation exceeds household use, an ordinary solar system may send surplus power back to the grid. The controller monitors load and regulates output to reduce this compliance risk.
What is different about GEECO anti-backflow control?
Fast-response reverse-flow control regulates compatible micro-inverter or micro-storage output when export risk is detected, supporting stable zero-export operation.
Does the installation require meter or distribution-box modification?
The solution is designed to minimize alteration. The exact requirement still depends on local electrical rules, existing wiring and installation method, and should be confirmed before installation.
Can zero export work without a battery?
Yes. Control plus a micro-inverter can provide basic export limitation; storage helps retain surplus solar for later use.
Can several devices be coordinated together?
Yes. The controller is designed to coordinate multiple compatible micro-inverter and storage devices against changing load.
Does this remove all installation requirements?
No. The final installation must still follow local electrical rules and the requirements of the local utility or authority.