AC Coupled Energy Storage Systems
Unlock the Full Potential of Your Grid-Tie PV System
Easily and cost-effectively expand your existing Grid-tie PV System with our AC Coupled Energy Storage System (ESS) solution, fully compatible with the "Octopus Go" Smart Tariff.
The Government recently announced Zero VAT on new residential energy storage batteries when purchased from your installer. Take advantage of our cost effective battery installation service (starting at just £199) and eliminate VAT on your battery installation! Click here to request a quote or contact us via live chat or call 020 8064 0335 for live expert advice.
Empowering You When It Matters Most
Customers often inquire about integrating a battery backup solution into their grid-tie solar systems (those equipped with solar panels but lacking battery storage). Grid-tie systems, as mandated by regulations, deactivate during grid power outages to prevent solar panels from feeding power back into the grid during maintenance. However, customers have distinct needs:
- Keep essential appliances running during a grid outage.
- Automatically charge batteries when solar panels are active, optimizing power usage.
- Utilize low nighttime tariffs to charge batteries and harness stored energy during peak hours.
Achieving this necessitates integrating a battery backup without backfeeding into the grid.
The AC Coupling Solution
The most prevalent solution is AC Coupling, which involves incorporating an AC Coupled Charger Inverter, a Battery Bank, and a critical loads panel into your existing grid-tie system. The critical loads panel is essential for powering vital devices during grid outages. The AC Coupled Charger Inverter, the existing grid-tie inverter, and critical appliances are connected to this panel.
Here's how it works:
- When the grid operates normally, solar panels supply daytime critical loads first, then charge the batteries, and any surplus power is exported to the grid.
- During a grid outage, the mains power panel loses supply, and no energy flows to the grid. Only the appliances connected to your critical loads panel remain operational.
- Even during a grid outage, the AC Coupled Charger Inverter continues generating power. The grid-tie inverter detects that the grid remains active, allowing the solar array to produce power, covering critical loads and replenishing the batteries.
- Batteries can subsequently power essential appliances at night, even if the grid remains offline, utilizing the stored energy generated during the day.
AC Coupling: Your Fail-Safe Power Solution
AC Coupling provides a fail-safe method to power critical appliances such as lighting, freezers, and water pumps in the event of a grid power outage. It also allows your system to export excess power to the grid when grid power is active while ensuring your battery bank remains fully charged.
Empowering Solar-Powered Homes
AC Coupled Energy Storage Systems have gained popularity among households already equipped with solar panels and a grid-tied inverter. Homeowners are realizing the advantages of storing solar-generated energy and utilizing it at their convenience.
Compatible with Octopus Energy
The Fox ESS AC1 Charger Inverter is specially designed for seamless integration with intelligent Agile tariffs. Octopus Energy leads the way as the first energy supplier to offer such a tariff, but the Fox AC1 Charger Inverter is equally compatible with other energy providers.
Reliable Backup Power
The AC1 AC Charger Charger Inverters are engineered to collaborate with external backup generators, ensuring a continuous supply of electricity during prolonged grid outages, even when the battery storage is depleted.
AC Coupling is your reliable path to uninterrupted power for essential appliances and efficient energy management, and it's fully equipped to work seamlessly with your preferred energy provider. Experience the resilience of On-Grid + AC Coupled ESS. Enhance the capabilities of your grid-tie system, ensuring power when you need it most.