Solar Battery System store your own power.সৌৰ বেটাৰী প্ৰণালী store your own power.
A solar battery system stores surplus solar energy so you can use it at night or during an outage. It is essential for off-grid systems and optional for hybrid systems.A solar battery system stores surplus solar energy so you can use it at night or during an outage. It is essential for off-grid systems and optional for hybrid systems.
Why add storage
Solar generates during the day, but homes use plenty of power at night and during outages. A battery bridges that gap — storing surplus energy for when you need it. It's the backbone of off-grid systems and the reason hybrid systems keep the lights on.
Battery types
| Type | Strengths | Trade-offs |
|---|---|---|
| Lithium (LiFePO4) | Longer life, deep discharge, low maintenance | Higher upfront cost |
| Lead-acid | Lower upfront cost | Shorter life, heavier, more maintenance |
See the details and options in solar batteries.
Sizing for backup
Sizing starts with what you want to keep running and for how long. Most homes protect essentials — lighting, fans, internet and refrigeration — rather than every appliance. For off-grid, sizing also accounts for low-sun days (autonomy).
Trade-offs
Batteries add cost and need eventual replacement, which is why on-grid systems skip them. If you have a reliable grid and don't need backup, an on-grid system is usually the better investment.
Solar calculatorসৌৰ কেলকুলেটৰ
Estimate your system size and savings.আপোনাৰ প্ৰণালীৰ আকাৰ নিৰ্ণয় কৰক আৰু সঞ্চয়ৰ পৰিমাণ।
Use our calculators to estimate the system you need from your monthly bill, your generation, savings and payback period. Results are labelled estimates with their assumptions.মাহেকীয়া বিলৰ পৰা প্ৰয়োজনীয় প্ৰণালী, বিদ্যুৎ উৎপাদন, সঞ্চয় আৰু পেবেক সময়ৰ হিচাপ কৰক।
- System size calculatorপ্ৰণালীৰ আকাৰ কেলকুলেটৰ
- Savings calculatorসঞ্চয় কেলকুলেটৰ
- Generation calculatorউৎপাদন কেলকুলেটৰ
- Payback calculatorপেবেক কেলকুলেটৰ
- Panel area calculatorপেনেল ক্ষেত্ৰফল কেলকুলেটৰ
Related pagesসম্পৰ্কিত পৃষ্ঠাসমূহ
FAQপ্ৰশ্নোত্তৰ
Common questions সাধাৰণ প্ৰশ্নসমূহ
Do I need a battery with solar?Do I need a battery with solar?
Only if you want backup or you're going off-grid. A grid-connected on-grid system works without batteries. Batteries are required for off-grid, and optional for hybrid.Only if you want backup or you're going off-grid. A grid-connected on-grid system works without batteries. Batteries are required for off-grid, and optional for hybrid.
Lithium or lead-acid battery?Lithium or lead-acid battery?
Lithium (LiFePO4) batteries cost more upfront but last longer, need less maintenance and tolerate deeper discharge. Lead-acid is cheaper initially but heavier, shorter-lived and needs more care. We help you weigh both for your use case.Lithium (LiFePO4) batteries cost more upfront but last longer, need less maintenance and tolerate deeper discharge. Lead-acid is cheaper initially but heavier, shorter-lived and needs more care. We help you weigh both for your use case.
How long do solar batteries last?How long do solar batteries last?
Lifespan depends on chemistry, depth of discharge and cycle count. Lithium batteries generally last longer than lead-acid. We'll explain realistic expectations for the battery you choose.Lifespan depends on chemistry, depth of discharge and cycle count. Lithium batteries generally last longer than lead-acid. We'll explain realistic expectations for the battery you choose.
How much backup will I get?How much backup will I get?
It depends on battery capacity and the load you run. We size backup around the essentials you want to keep powered — lights, fans, internet, refrigeration — rather than the whole house.It depends on battery capacity and the load you run. We size backup around the essentials you want to keep powered — lights, fans, internet, refrigeration — rather than the whole house.
Sewaro Energy service informationSewaro Energy সেৱা তথ্য
Tell us about your roof and electricity use. We'll recommend the right system and handle subsidy and net-metering paperwork where applicable.আপোনাৰ ছাদ আৰু বিদ্যুৎ ব্যৱহাৰৰ বিষয়ে কওক। আমি সঠিক প্ৰণালী নিৰ্বাচনত সহায় কৰিম আৰু প্ৰযোজ্য হ'লে ৰাজসাহায্য আৰু নেট-মিটাৰিঙৰ কাম চম্ভালিম।
Ready to power your home with solar? engineered to last.আপোনাৰ ঘৰখন সৌৰ শক্তিৰে আলোকিত কৰিবলৈ সাজুনে? যি টিকিব বহু বছৰ।
Tell us about your roof and your electricity bill. We'll help you size the right system and handle the subsidy and net-metering paperwork.আপোনাৰ ছাদ আৰু মাহেকীয়া বিদ্যুৎ বিলৰ বিষয়ে কওক। আমি সঠিক প্ৰণালী নিৰ্বাচনত সহায় কৰিম আৰু ৰাজসাহায্য তথা নেট-মিটাৰিঙৰ সকলো কাম চম্ভালিম।