Night-Time Savings: How Smart Export Control Is Letting Rooftops Earn More After Sunset

Rooftop owners are finding new value after sunset. By combining batteries, export control and tariff-aware discharge strategies, households and small businesses can reduce evening grid purchases and—where local rules permit—sell energy into higher-priced windows or participate in grid flexibility programmes.

How export control works for rooftops

Export control limits or schedules how much energy a rooftop system feeds to the grid and when. Coupled with a battery and a smart inverter, it allows owners to store surplus day-time solar and dispatch selectively during evening tariff spikes or discharge to meet critical loads during outages.

Practical checklist for homeowners

• Confirm local interconnection & export rules with your DISCOM.
• Choose a smart inverter that supports export limiting and scheduled dispatch.
• Size your battery to cover typical evening consumption — avoid oversizing for better ROI.
• Ask vendors for real discharge performance and degradation projections.

What vendors should offer

Vendors should provide export-control configuration, tariff-aware scheduling, monitoring dashboards, and clear guarantees about export limits and battery cycle-life. Transparent simulation reports (yearly kWh shifted to evening, expected savings) help customers make informed choices.