Hybrid solar systems in Kerala — net metering + outage backup
A hybrid system is an on-grid solar plant with a lithium battery bolted on. You still earn KSEB net-metering credits during the day, but when the grid drops out — monsoon storm, transformer fault, summer load shed — your essentials keep running silently.
- ₹3.7L5 kW + 5 kWh
- 10 yrsBattery life
- InstantBackup
- Solar partSubsidy
What hybrid solves
Standard on-grid solar shuts down during a power cut (anti-islanding safety). Hybrid keeps a 'protected loads' panel alive: fridge, fans, lights, modem, CCTV, basic plug points. In Kerala's monsoon belt, that's the difference between sleeping comfortably and waiting out a 6-hour outage in the dark.
Typical Kerala configurations
3 kW solar + 3 kWh battery → ₹2.8–3.4 lakh after subsidy. Runs fans, lights, fridge, Wi-Fi for 6–8 hours. 5 kW solar + 5 kWh battery → ₹3.7–4.7 lakh after subsidy. Adds one 1.5 T inverter AC + TV. 10 kW solar + 10 kWh battery → ₹7.5–9 lakh after subsidy. Whole-villa backup including 2 ACs.
Hardware
Hybrid inverters: Deye SUN-5K/8K/10K, Sungrow SH-RS, Growatt SPH. Batteries: Pylontech US5000 / BYD HVS / Luminous Li-On — LiFePO₄ chemistry with 6,000–10,000 cycle life. All paired with KSEB-approved bi-directional meter for net metering.
Frequently asked questions
+What is a hybrid solar system?
Hybrid solar combines on-grid solar with a battery backup. By day the system runs loads and exports surplus to KSEB (net metering still works). When the grid goes down, the battery and panels keep critical loads running — fridge, lights, fans, router, Wi-Fi camera — without the lights blinking.
+Why hybrid is popular in Kerala
Kerala has frequent monsoon outages and load-shedding in summer. Hybrid keeps your home running through outages while still earning net-metering credits — best of both worlds.
+Hybrid solar price in Kerala?
Add roughly ₹40,000–80,000 per kWh of lithium battery on top of an on-grid system. A 5 kW solar + 5 kWh lithium battery hybrid in Kerala runs ₹4.5–5.5 lakh before subsidy, ₹3.7–4.7 lakh after PM Surya Ghar.
+Does PM Surya Ghar subsidy apply?
Yes — the solar portion (panels + grid-tied inverter capacity) is fully eligible. Battery is excluded from the subsidy but qualifies for some commercial-bank green loans at 7–9%.
+Which battery brands?
We install lithium-iron-phosphate (LiFePO₄) batteries from Pylontech, BYD, Luminous Li-On, Polinovel — 6,000+ cycle life, 10-year warranty, zero maintenance.