Solar vs Inverter Calculator
Compare rooftop solar with a conventional home inverter and battery on cost, backup and bill savings — and see which one actually answers your problem.
यहाँ से शुरू करें
- क्या भरें
- इनवर्टर और बैटरी की कीमत भरें। सोलर पक्ष आपकी साझा योजना से आता है।
- नतीजे का मतलब
- सोलर बिल घटाता है; इनवर्टर बिजली जाने पर बैकअप देता है और बिल में कुछ नहीं बचाता, क्योंकि वह ग्रिड से चार्ज होता है।
उदाहरण और सीमाएँ देखें
- आसान उदाहरण
- ₹25,000 का इनवर्टर 25 वर्षों में बैटरी बदलने पर करीब ₹1,75,000 लेता है और बिल पर ₹0 बचाता है।
- ध्यान रखें
- ऑन-ग्रिड सोलर बिजली जाने पर बैकअप नहीं देता। केवल हाइब्रिड सिस्टम दोनों काम करता है, और उस बैटरी पर सब्सिडी नहीं है।
अपना परिणाम कैलकुलेट करें
अपने आँकड़े दर्ज करें। बदलाव के साथ अनुमान और चार्ट अपडेट होंगे।
सोलर बनाम इन्वर्टर
इस तुलना का सोलर पक्ष आपके साझा प्लान से आता है, इसलिए साइज़ और टैरिफ़ साइज़िंग या बिल बचत टूल में सेट करें।
ये अलग-अलग समस्याएँ हल करते हैं। इन्वर्टर बिजली जाने पर ग्रिड की बिजली जमा करता है और बिल कभी कम नहीं करता; सोलर बिल कम करता है और बिना बैटरी कोई बैकअप नहीं देता।
- सोलर की शुद्ध लागत
- ₹1,02,000
- सब्सिडी के बाद, बिना बैटरी
- इन्वर्टर लागत
- ₹25,000
- वही पैसा, अलग काम
- सोलर की जीवनकाल बचत
- ₹7.87L
- पहले वर्ष की बचत सिस्टम के जीवनकाल तक दोहराई गई
- इन्वर्टर से बिल बचत
- ₹0
- ग्रिड से चार्ज होता है, इसलिए कोई यूनिट बचती नहीं
- इसी अवधि में इन्वर्टर लागत
- ₹1,75,000
- प्रति आउटेज लगभग 2–6 घंटे का बैकअप, जो ग्रिड से रीचार्ज होता है। 25 वर्षों में हर 4 वर्ष पर बैटरी बदलने का अनुमान है।
इन्वर्टर बिजली जाने का जवाब है; सोलर बिल का। केवल बैटरी वाला हाइब्रिड सिस्टम दोनों करता है, और उसकी बैटरी पर सब्सिडी नहीं मिलती।
अपनी गणना समझें
Solar and an inverter are usually compared because both involve a battery or an inverter on the wall, but they solve different problems. An on-grid solar system generates electricity and reduces the units you buy; it normally shuts down during a power cut for safety and provides no backup. A home inverter generates nothing: it stores grid power in a battery and returns it during an outage, and it never reduces your bill because it recharges from the same grid at the same tariff. Comparing them on bill savings alone therefore flatters solar, and comparing them on backup alone flatters the inverter.
Solar vs Inverter Calculator क्यों उपयोग करें
Households usually start with one of two complaints: a large bill, or frequent outages. The right answer is different in each case. If outages are rare, an on-grid solar system plus an existing inverter covers both needs at the lowest cost, because the inverter was already installed for backup. If outages are frequent and long, a hybrid system with a battery keeps critical loads running — but the battery adds substantial cost and receives no subsidy, so the payback lengthens considerably.
Solar vs Inverter Calculator कैसे उपयोग करें
- 1
Enter your inverter quote
The price of the inverter and battery set you are considering, or already own. Modern multi-kilovolt-ampere units with two batteries often land in the ₹20,000 to ₹40,000 range.
- 2
Set the solar size and tariff
Solar cost and saving come from the shared plan, so set the system size and tariff in the sizing or bill savings tool first.
- 3
Compare the bill-saving lines
The inverter line stays at zero because it does not generate electricity. That is not a modelling limitation; it is the point.
- 4
Decide with the outage frequency in mind
If outages are rare, on-grid solar plus the existing inverter is usually cheapest. If they are frequent, price the hybrid premium and ask whether the battery is worth it.
उदाहरण
3 kW on-grid solar against a 2 kVA inverter
An on-grid 3 kW system after subsidy compared with a ₹25,000 inverter and battery set, over 25 years.
- Solar net cost after subsidy
- ₹1,02,000
- Solar first-year saving
- ₹31,469
- Solar saving over 25 years, flat
- ₹31,469 × 25 = ₹7,86,725
- Solar outage backup
- none
- Inverter cost
- ₹25,000
- Inverter bill saving
- ₹0
- Inverter battery replacements
- floor(24 ÷ 4) = 6 over 25 years
- Inverter lifetime outlay
- ₹25,000 × 7 = ₹1,75,000
- Backup provided
- roughly 2–6 hours per outage
The inverter answers outages and costs money over time; solar answers the bill and earns money over time. A household needing both is usually best served by on-grid solar alongside the inverter it already owns.
इसकी गणना कैसे होती है
The two options are costed over the same horizon, 25 years by default. Solar is entered once at its net cost after subsidy, and its lifetime saving here is simply first-year saving × years, with no escalation or degradation. The payback calculator models those separately.
The inverter is entered at its purchase price and repeated on its battery cycle: cost × (1 + floor((years − 1) ÷ battery life)). With a 4-year battery over 25 years that's six replacements on top of the first purchase.
Its bill saving is zero by construction, because the battery is charged from the grid at the tariff it later displaces.
Backup is attributed to the battery rather than the panels, so a grid-tied system with no storage is shown with no backup at all.
मान्यताएँ और सीमाएँ
- The inverter is assumed to provide backup only and to produce no bill saving, because it is charged from the grid.
- Battery replacement is modelled on a fixed cycle. Actual life depends on depth of discharge, ambient temperature and maintenance.
- The hybrid premium per kW is a market planning range for a compliant system and excludes the subsidy, which does not cover storage.
- Backup hours depend on battery capacity, the loads connected and how deeply the battery is discharged; a range is shown rather than a promise.
- Solar figures come from the shared plan and inherit the generation, tariff and subsidy assumptions of the other tools.
अक्सर पूछे जाने वाले प्रश्न
Does a home inverter reduce my electricity bill?
No. A conventional inverter charges its battery from the grid and returns that energy during an outage. The same units are billed either way, so the bill is unchanged. Only a system that generates electricity, such as solar, reduces units purchased.
Does on-grid solar work during a power cut?
Not on its own. Grid-tied inverters shut down when the grid fails, to protect lines and anyone working on them. Backup requires a battery, which means a hybrid or off-grid system.
Is a hybrid solar system worth the extra cost?
It depends on your outages and your bill. The battery portion adds a significant premium per kW and earns no subsidy, so it pays only when reliability is genuinely valuable to you. Where outages are rare, an on-grid system plus an existing inverter is usually cheaper.
How long does an inverter battery last compared with solar panels?
A lead-acid battery bank typically needs replacing every few years, while solar modules carry a performance warranty of around 25 years with slow degradation. The comparison table in the calculator costs these different lifetimes explicitly.
Can I add a battery to solar later?
Often yes, if the inverter is hybrid-capable. Checking this at purchase is important, because a grid-tied inverter cannot be retrofitted with a battery without being replaced.
Which option has a faster payback?
On-grid solar has a payback because it produces a saving each month. An inverter has no financial payback at all in bill terms — it is bought for backup, and its value is measured in hours of power during outages.