A hybrid solar system becomes significantly more useful when it combines a hybrid inverter with lithium battery storage.

Instead of using solar power only when the sun is available, a battery allows excess solar energy to be stored and used later. This can help reduce grid dependence and provide backup power during electricity outages.

Among the hybrid inverter options available in India, Deye is an important brand to consider for solar-plus-storage applications.

But there is one question almost every buyer asks:

How much does a Deye hybrid inverter with a lithium battery actually cost in India in 2026?

The answer depends on the inverter capacity, battery size, solar-panel capacity, installation requirements and the equipment included in the package.

In this guide, we break down the expected cost of a Deye hybrid inverter + lithium battery solar system, explain different system sizes and show what you should check before buying.

Note: Prices in this article are indicative market ranges for planning purposes. Actual prices can vary based on the exact Deye model, lithium battery brand and capacity, seller, GST, warranty, installation and current availability.

Deye Hybrid Inverter + Lithium Battery: Quick Cost Guide

A complete solar-plus-storage system can include:

Solar Panels + Deye Hybrid Inverter + Lithium Battery + Structure + Protection + Installation

Indicative 2026 planning ranges could look like this:

System Size	Typical Deye Inverter	Approx. Complete System Cost*
3kW	3kW Hybrid	₹2.5 lakh – ₹3.8 lakh
5kW	5kW Hybrid	₹3.5 lakh – ₹5.5 lakh
8kW	8kW Hybrid	₹5.5 lakh – ₹8 lakh
10kW	10kW Hybrid	₹6.5 lakh – ₹10 lakh

*Indicative ranges. Actual project pricing can vary substantially based on panel brand, lithium battery capacity and brand, structure, protection equipment, installation and other components.

The most important point is that the inverter capacity does not determine the complete system cost by itself.

Battery capacity can have a major impact on the final quotation.

What Is a Deye Hybrid Inverter?

A hybrid inverter manages energy from solar panels, batteries and the electrical grid.

A simplified system looks like:

Solar Panels → Deye Hybrid Inverter → Home

with the battery connected to the inverter:

Deye Hybrid Inverter ↔ Lithium Battery

and the grid providing another source of electricity.

Depending on the model and configuration, the system can use solar energy for household loads, charge the battery and use stored energy when required.

Deye's hybrid inverter portfolio includes different capacities and configurations. Its SG04LP1 series, for example, includes 3kW, 3.6kW, 5kW and 6kW models and supports lithium-ion and lead-acid battery configurations.

Larger Deye hybrid inverter models are also available for higher-load applications.

Why Add a Lithium Battery to a Deye Hybrid Inverter?

A solar system without battery storage is primarily designed to use solar electricity during the day.

A battery changes the way the system operates.

During the day:

Solar → Home Load

and excess energy can be:

Solar → Battery

Later, when solar generation decreases:

Battery → Home Load

This can be useful for homeowners who:

• Experience frequent power cuts

• Want backup electricity

• Want to use more of their solar energy

• Have time-of-use electricity considerations

• Want to reduce dependence on the grid

The actual benefit depends on your electricity tariff, consumption pattern, solar generation and battery usage.

Deye Hybrid Inverter + Lithium Battery System Components

A complete installation normally contains several components.

1. Deye Hybrid Inverter

The inverter is the central component that manages energy between the solar panels, battery, grid and home loads.

Popular residential capacities include:

• 3kW

• 5kW

• 6kW

• 8kW

• 10kW

The exact available model depends on the product series and market.

2. Solar Panels

Solar panels generate DC electricity from sunlight.

The number of panels required depends on:

• Desired solar capacity

• Panel wattage

• Available roof area

• Inverter PV input limits

• Energy consumption

• Solar generation target

3. Lithium Battery

The battery stores energy generated by the solar panels.

Battery capacity is generally expressed in kWh.

For example:

5kWh battery

stores less energy than:

10kWh battery

The appropriate capacity depends on your backup requirement.

4. Mounting Structure

Solar panels need a suitable rooftop mounting structure.

The cost depends on:

• Roof type

• Structure material

• Tilt requirements

• Installation height

• Wind conditions

• Number of panels

5. DC and AC Protection

A properly designed installation may require:

• DC isolators

• AC protection

• Surge protection

• Appropriate breakers

• Earthing

• Other electrical safety components

6. Cables and Accessories

Solar cables, battery cables, connectors and other accessories contribute to the final system cost.

7. Installation and Commissioning

Installation charges vary according to system size and site conditions.

Deye 3kW Hybrid Inverter + Lithium Battery Cost

A 3kW hybrid system can be suitable for smaller homes with moderate electricity requirements.

A typical system may include:

• 3kW Deye hybrid inverter

• Approximately 3kW solar panels

• 5kWh lithium battery

• Solar mounting structure

• DC/AC protection

• Wiring

• Earthing

• Installation

An indicative complete system budget can be around:

₹2.5 lakh – ₹3.8 lakh

The final price can change significantly depending on the battery brand and capacity.

Who Should Consider a 3kW System?

A 3kW Deye hybrid system can be considered if you mainly want backup for:

• Fans

• Lights

• Refrigerator

• Television

• Wi-Fi

• Computers

• Other essential loads

If you want to run multiple air conditioners during an outage, a 3kW system may not be appropriate.

Deye 5kW Hybrid Inverter + Lithium Battery Cost

The 5kW category is one of the more relevant options for medium-sized homes.

A typical configuration might include:

• 5kW Deye hybrid inverter

• Around 5kW solar panels

• 5–10kWh lithium battery

• Solar structure

• Protection equipment

• Wiring

• Earthing

• Installation

A broad 2026 planning range for the complete system could be:

₹3.5 lakh – ₹5.5 lakh

The battery capacity is one of the biggest variables.

For example, a 5kWh battery and a 10kWh battery can produce a substantial difference in the total project price.

Deye 8kW Hybrid Inverter + Lithium Battery Cost

An 8kW system is more suitable for larger homes and higher electricity consumption.

A system may include:

• 8kW Deye hybrid inverter

• Around 8kW or suitably sized solar array

• 10–15kWh lithium battery

• Mounting structure

• Protection equipment

• Wiring

• Earthing

• Installation

An indicative complete system budget can be approximately:

₹5.5 lakh – ₹8 lakh

The final price depends heavily on the battery and solar-panel selection.

At this size, professional electrical design is particularly important.

Deye 10kW Hybrid Inverter + Lithium Battery Cost

A 10kW hybrid solar-plus-storage system is designed for higher electricity requirements.

It may be appropriate for:

• Large villas

• Large independent homes

• High-consumption properties

• Offices

• Larger backup systems

A typical configuration could include:

• 10kW Deye hybrid inverter

• 10kW or suitably designed solar array

• 10–20kWh lithium battery

• Mounting structure

• Protection equipment

• Wiring

• Earthing

• Installation

A broad indicative budget can be around:

₹6.5 lakh – ₹10 lakh

Larger systems should be designed according to the property's actual load and electrical connection.

How Much Lithium Battery Do You Need?

This is one of the most important questions when planning a hybrid system.

Do not select the battery simply because it matches the inverter capacity.

A:

5kW inverter

can work with different battery capacities depending on the system design.

For example:

5kW inverter + 5kWh battery

and

5kW inverter + 10kWh battery

are very different backup systems.

The inverter determines the maximum power the system can deliver.

The battery determines how much energy is available.

Simple Battery Calculation

Suppose your essential backup load is:

1.5kW

and you want:

4 hours of backup

The theoretical energy requirement is:

1.5kW × 4 hours = 6kWh

You would then need to account for usable battery capacity, inverter losses, operating limits and other system factors.

Therefore, a battery with a nominal capacity slightly above the theoretical requirement may be needed.

Example: What Can a 10kWh Lithium Battery Run?

A 10kWh battery does not mean that every appliance can run for a fixed number of hours.

For example, if the connected backup load is:

1kW

the theoretical energy duration would be around:

10 hours

But if the load becomes:

2kW

the theoretical duration becomes:

5 hours

Real-world performance will vary because of:

• Inverter efficiency

• Usable battery capacity

• Battery management settings

• Depth of discharge

• Temperature

• Changes in appliance consumption

This is why backup should be calculated using your actual load profile.

Deye Battery Compatibility

Battery compatibility is an important consideration.

Deye publishes compatibility information for its inverter and battery systems. For example, its documentation lists compatible inverter models with the Deye AI-W5.1-B battery system.

The exact battery compatibility depends on:

• Inverter model

• Battery voltage

• Battery chemistry

• BMS communication

• Maximum charging current

• Maximum discharge current

• Firmware/configuration requirements

Never assume that any lithium battery can simply be connected to a Deye inverter.

Before purchasing, request confirmation of compatibility for the exact inverter and battery model numbers.

Deye Hybrid Inverter + Lithium Battery: Example System

Let's consider a medium-sized home that wants solar generation and backup.

Requirement

• Medium-sized home

• 5kW peak requirement

• Backup for essential appliances

• Solar generation during the day

• Lithium battery storage

Possible configuration

5kW Deye Hybrid Inverter

Approximately 5kW solar array

10kWh lithium battery

Solar structure

DC/AC protection

Wiring & earthing

Installation

The actual system should be designed after assessing the household's electricity consumption and backup requirement.

Deye Hybrid System Cost: Where Your Money Goes

A common mistake is to compare only inverter prices.

A complete system can be broken down into:

Component	Approximate Share of Project
Solar Panels	Major component
Deye Hybrid Inverter	Major component
Lithium Battery	Major component
Structure	Smaller component
Protection Equipment	Smaller component
Cables	Smaller component
Installation	Varies
Earthing	Varies

The battery can significantly affect the final project cost.

If you increase battery capacity from 5kWh to 10kWh or 15kWh, the total investment can rise considerably.

Does a Bigger Battery Always Make Sense?

Not necessarily.

Suppose your home experiences short power cuts of only one or two hours.

You may not need a very large battery.

On the other hand, if your area experiences long and frequent outages, a larger battery can provide more useful backup.

The right battery size depends on:

Backup load × Backup duration

rather than simply choosing the largest battery available.

Deye Hybrid Solar System for Air Conditioner Backup

Air conditioners are among the most demanding household appliances.

If you want to run an AC during a power cut, consider:

• AC running power

• Compressor starting characteristics

• Number of ACs

• Other simultaneous loads

• Inverter surge capacity

• Battery capacity

A system designed only for lights, fans and refrigerator may require much less battery capacity than one designed to run an AC.

Therefore, clearly tell your installer which appliances you want to operate during an outage.

Can Deye Hybrid Inverter Work Without a Battery?

Depending on the exact model and configuration, Deye hybrid inverters can be used in systems where battery storage is not initially installed.

However, if your primary objective is reliable backup, a battery is necessary.

If you are planning to add a battery later, make sure the inverter model and system design can accommodate that future expansion.

PM Surya Ghar Subsidy and Deye Hybrid Solar Systems

The PM Surya Ghar: Muft Bijli Yojana provides central financial assistance for eligible residential rooftop solar installations.

Under the current central subsidy structure, the central subsidy can reach ₹78,000 for eligible systems of 3kW and above.

However, you should not simply subtract ₹78,000 from the cost of a Deye hybrid inverter and lithium battery.

The subsidy applies to eligible rooftop solar installations subject to the scheme's applicable requirements.

The exact eligibility of a proposed system should be verified before purchase, particularly where battery storage and specific equipment configurations are involved.

Is Deye Hybrid Inverter with Lithium Battery Worth It?

A Deye hybrid system can make sense if your priorities include:

• Solar electricity

• Battery backup

• Reduced grid dependence

• Better use of solar energy

• Backup during outages

• Flexible energy management

But the economics depend on your usage.

If you rarely experience power cuts and your main objective is reducing electricity bills, a battery may increase your initial investment substantially.

If power backup is important and outages are frequent, the additional battery investment can provide much more practical value.

What to Check Before Buying

Before finalising a Deye hybrid solar system, ask the installer for a detailed quotation.

The quotation should specify:

Inverter

• Exact Deye model

• Rated capacity

• PV input

• MPPT specifications

• Warranty

Battery

• Brand

• Exact model

• Nominal capacity

• Usable capacity

• Voltage

• BMS

• Warranty

Solar Panels

• Brand

• Model

• Wattage

• Number of panels

• Total DC capacity

• Product warranty

Installation

• Mounting structure

• DC protection

• AC protection

• Earthing

• Cables

• Installation

• Commissioning

Commercial Details

• GST

• Transportation

• Warranty

• After-sales support

• Estimated delivery time

How to Reduce the Cost of a Deye Hybrid Solar System

You do not necessarily need to reduce the inverter capacity to reduce the project cost.

Instead, optimise the entire system.

1. Size the Battery Correctly

Do not purchase more battery capacity than you need.

2. Prioritise Backup Loads

Instead of backing up the entire home, you can create an essential-load circuit.

3. Choose the Solar Capacity Based on Consumption

Install enough solar generation to meet your energy requirement without unnecessarily oversizing the system.

4. Compare Complete Quotations

Compare the full bill of materials instead of comparing only inverter prices.

5. Check Warranty and After-Sales Support

A slightly cheaper system may not be better if service support is poor.

Final Verdict

A Deye hybrid inverter with a lithium battery can provide a powerful combination of solar generation and backup power for Indian homes.

For smaller requirements, a 3kW system can be considered.

For many medium-sized homes, a 5kW system with a suitably sized lithium battery can provide a good balance.

Larger homes may require 8kW or 10kW systems, particularly when multiple high-power appliances are involved.

The most important thing is not to choose the largest inverter or battery.

Instead, design the system around:

Your electricity consumption + peak load + backup requirement + solar generation target.

Once these numbers are known, you can select the appropriate Deye inverter, lithium battery and solar-panel capacity.

For an accurate quotation, ask for an itemised Deye solar system proposal covering the inverter, battery, panels, structure, protection, installation and warranty.

Frequently Asked Questions

How much does a Deye hybrid inverter with lithium battery cost in India in 2026?

A complete system can range broadly from around ₹2.5 lakh for smaller configurations to ₹10 lakh or more for larger systems. The final price depends heavily on solar capacity, lithium battery size, inverter capacity, panel brand and installation.

How much does a Deye 5kW hybrid solar system cost?

A 5kW Deye system with lithium battery can broadly fall in the ₹3.5 lakh–₹5.5 lakh range depending on battery capacity, solar panels, installation and other components.

What size battery should I use with a Deye 5kW inverter?

There is no fixed battery size. A 5kWh battery may suit limited essential-load backup, while 10kWh or more may be appropriate when longer backup is required.

Can I use a lithium battery with a Deye hybrid inverter?

Yes, compatible Deye hybrid inverter models support lithium battery systems. However, compatibility must be confirmed for the exact inverter and battery model.

How long will a 10kWh battery last?

It depends on the load. A theoretical 1kW load could use 10kWh over approximately 10 hours, while a 2kW load would use the same energy in approximately 5 hours. Actual backup time will be lower or different depending on usable capacity and system efficiency.

Can a Deye hybrid inverter run an AC during a power cut?

It can be possible with an appropriately sized inverter and battery system. The AC's running and starting requirements, along with other simultaneous loads, must be considered.

Is a lithium battery necessary with a Deye hybrid inverter?

Not necessarily for every operating configuration, but a battery is required if your objective is to have stored energy available for backup during grid outages.

Does PM Surya Ghar subsidy cover the lithium battery?

The central subsidy is associated with eligible residential rooftop solar installations under the applicable scheme rules. Do not assume that the full cost of a lithium battery is directly subsidised. Verify the current programme requirements before purchase.

What is the biggest factor affecting Deye hybrid system cost?

Battery capacity can have a significant effect on the final cost, followed by solar-panel capacity, inverter size, equipment selection and installation requirements.