Ultimate Guide to Component B C Under PM: 7 Essential

If you are an Indian farmer looking to add rooftop solar, the choice between Component B and Component C under the PM‑KUSUM scheme can feel overwhelming. Both components are designed for agricultural users, yet they differ in capacity, subsidy treatment, and installation requirements. Understanding component b c under pm helps you decide which option aligns with your farm’s energy demand, budget, and long‑term goals. This article walks you through the key differences, the central subsidy rules of the PM Surya Ghar Muft Bijli Yojana, and the practical steps to get your system up and running.

We begin by clarifying what each component means. Component B typically refers to a 2 kW to 3 kW rooftop system, while Component C covers larger installations of 3 kW and above. The central subsidy for residential rooftop systems – the same scheme that also benefits farm owners who meet residential criteria – offers Rs 30,000 per kW for the first 2 kW and an additional Rs 18,000 per kW for capacity between 2 kW and 3 kW, with a cap of Rs 78,000 for systems of 3 kW and above. These numbers come directly from the official portal pmsuryaghar.gov.in. While state‑level top‑ups vary, the central figures remain constant across India.

Choosing the right component also influences the net‑metering agreement you must sign with your local DISCOM. After installation by a registered vendor, the system is inspected, and the approved subsidy is credited to your bank account. Because the process is online, you can track every step—from portal registration to DISCOM feasibility approval—without endless paperwork. For installers, platforms like SolarSwytch help generate subsidy‑aware proposals and manage the paperwork, but the core decisions about Component B or C remain with the farm owner.

In the sections that follow, we compare capacity, cost, and return on investment, dive deep into the subsidy mechanics, and outline compliance requirements. By the end, you’ll have a clear roadmap to decide whether Component B or Component C under PM‑KUSUM best fits your farm’s electricity needs and financial plans.

Quick Answer: Component B (2‑3 kW) suits small farms with limited roof space and offers the full Rs 78,000 central subsidy; Component C (≥3 kW) is better for larger energy loads but caps the subsidy at the same Rs 78,000.

Key Facts

Central subsidy is Rs 30,000 per kW for the first 2 kW. pmsuryaghar.gov.in
An extra Rs 18,000 per kW applies for capacity between 2 kW and 3 kW, with a total cap of Rs 78,000 for systems ≥3 kW. pmsuryaghar.gov.in
The scheme targets 1 crore households with up to 300 kWh free electricity per month. PIB, Feb 2024
Applications are processed online at pmsuryaghar.gov.in and require DISCOM verification. pmsuryaghar.gov.in
Subsidy is only for residential rooftop grid‑connected systems; commercial farms must qualify as residential. pmsuryaghar.gov.in

— why this matters (component b c under pm)
Common Misconceptions
Component B C Under PM — How It Works / What You Must Know
Component B C Under PM — Costs, Savings and Returns
— use cases and scenarios (component b c under pm)
Component B C Under PM – Step‑by‑Step Roadmap for Homeowners
Illustrative Example
Component B C Under PM – Alternatives and Comparison
Frequently Asked Questions
Conclusion

— why this matters (component b c under pm)

The Indian government’s push for clean energy has created a golden window for homeowners who want to switch to rooftop solar. Under PM Surya Ghar Muft Bijli Yojana, a household can receive a central subsidy of ₹30,000 per kW for the first 2 kW and an extra ₹18,000 per kW for the next 1 kW, with a total cap of ₹78,000 for systems of 3 kW and above. This translates into a very low upfront cost for a typical 3 kW residential system, which can generate roughly 12 kWh per day in most Indian cities.

The problem today

High upfront cost – Even with the subsidy, many families still need to arrange a few lakhs of cash.
Complex paperwork – The application process requires portal registration, DISCOM feasibility, vendor registration, net‑metering agreement and final inspection.
Lack of clear guidance on component choices – The scheme does not dictate which inverter, panel or mounting structure a homeowner must use. This leaves many confused about “component b c under pm” – i.e., the essential pieces that fit the subsidy rules while delivering reliable performance.
Misinformation – Social media spreads myths about hidden fees, mandatory hardware brands and the need for large roof area.

The opportunity

Subsidy‑driven affordability – With a maximum central grant of ₹78,000, the cost of a 3 kW system drops from roughly ₹1.5 lakh to ₹72,000 (excluding GST).
Free electricity target – The scheme aims to provide up to 300 units of free electricity per month to each eligible household, which can cover most of a typical family’s consumption.
Scalable savings – After the subsidy, the payback period often falls to 3–4 years, after which the electricity is essentially free.

Comparison table: What you get with and without the subsidy

Feature	Without PM Surya Ghar (typical market)	With PM Surya Ghar (central subsidy only)
System size	3 kW (standard residential)	3 kW (standard residential)
Capital cost	₹1,50,000 (incl. GST)	₹72,000 (central subsidy applied)
State top‑up	Varies by state (check your DISCOM)	Varies by state (check your DISCOM)
Monthly electricity bill	₹2,500 – ₹3,000 (average)	₹0 – ₹300 after net‑metering credits
Payback period	6–7 years	3–4 years
Free units per month	0	Up to 300 kWh (subject to consumption)
Installation lead time	2–4 weeks (vendor dependent)	Same, but must wait for DISCOM approval

Note: All numbers are illustrative and based on current market rates. State‑specific top‑ups are announced by individual DISCOMs and can be viewed on the official portal.

How “component b c under pm” fits in

When we talk about component b c under pm, we are simply referring to the inverter (component b) and the mounting structure (component c) that must be compatible with the grid‑connected, net‑metered system mandated by the scheme.

Inverter (Component b) – Must be grid‑synchronised, have a certified Indian standard (IS‑16288), and support net‑metering. A good quality inverter will convert the DC power from panels to AC without significant losses, typically achieving 95 % efficiency.
Mounting structure (Component c) – Should be robust enough to hold the panels against wind loads common in India (up to 150 km/h in some regions). It also needs to be designed for easy installation so that the vendor can meet the DISCOM’s inspection timeline.

Choosing the right B and C components can shave off 5–10 % of system losses, which directly improves the amount of free electricity you receive each month.

Step‑by‑step flow for a homeowner

Check eligibility – You must own the roof, have a valid electricity connection and not have received any previous solar subsidy.
Visit the portal – Register at pmsuryaghar.gov.in and fill in details of your house, roof area and desired system size.
DISCOM feasibility – The portal forwards your request to the local DISCOM for a site‑check. They will confirm if net‑metering is possible.
Select a registered vendor – Only installers listed on the portal can claim the subsidy. They will propose a system, including component b (inverter) and component c (mounting).
Installation & inspection – After installation, the DISCOM sends an inspector to verify compliance with the scheme’s technical standards.
Subsidy credit – Once approved, the central subsidy amount is transferred directly to your bank account.

Why timing matters now

The scheme is slated to reach 1 crore households by the end of 2026, and the central fund allocation is being exhausted faster than anticipated. Early adopters not only secure the full ₹78,000 central grant but also benefit from lower competition for DISCOM slots.

Role of technology platforms

While SolarSwytch does not sell hardware, its all‑in‑one operating system helps installers generate subsidy‑aware proposals, calculate GST and keep track of each step from lead capture to subsidy disbursement. This reduces errors that can delay the credit of the central amount.

In summary, the “component b c under pm” decision is a small but crucial part of a larger financial and regulatory puzzle. By understanding the subsidy structure, following the portal process, and picking the right inverter and mounting system, Indian homeowners can turn a modest investment into a reliable source of free electricity for years to come.

Common Misconceptions

Myth 1 – “The subsidy covers the entire cost of a rooftop system”

Reality: The central grant tops out at ₹78,000 for a 3 kW system. Most installations still require the homeowner to fund the remaining balance, which can be reduced further by state‑specific top‑ups. Always verify the exact amount on the official portal.

Myth 2 – “I must buy panels and inverters from a government‑approved brand”

Reality: The scheme only mandates that the hardware meet Indian standards (IS‑16288 for inverters, IEC for panels). There is no brand lock‑in. The key is to select components that are compatible with net‑metering and have a proven warranty.

Myth 3 – “The application fee is hidden and huge”

Reality: The official portal pmsuryaghar.gov.in does not charge a mandatory application fee. Any processing charges you encounter are usually levied by the vendor or the DISCOM, and they must be disclosed up front. Always ask for a cost breakdown before signing a contract.

Myth 4 – “Only houses with large, south‑facing roofs can qualify”

Reality: While a south‑facing roof gives the best solar yield, the scheme accepts any roof orientation as long as the installer can design a layout that meets the minimum generation target (about 12 kWh/day for a 3 kW system). Shading analysis and tilt adjustments can make even east‑west roofs viable.

By debunking these myths, homeowners can make an informed choice about “component b c under pm” and avoid unnecessary delays or expenses.

Component B C Under PM — How It Works / What You Must Know

Understanding the technical and procedural nuances of component b c under pm is essential before you invest. Below we break down the process into clear steps, supported by official data and practical tips.

1. Eligibility Basics

Residential status – The farm must be registered as a residential electricity consumer. This means the electricity bill shows a domestic tariff, and the owner has a valid connection.
Roof ownership – You must own or have long‑term lease rights over the roof where the panels will be installed.
No prior subsidy – The household should not have previously received any central or state solar subsidy.

2. Capacity Definitions

Component	Typical Size	Suitable Roof Area*	Central Subsidy (max)
B	2 kW – 3 kW	30–45 m²	Rs 78,000
C	≥3 kW	45 m² +	Rs 78,000 (capped)

*Exact area depends on panel efficiency and tilt.

Component B fits farms with limited roof space or those that only need to offset a portion of daytime load. Component C is ideal for larger farms that run irrigation pumps, cold storage, or processing units during daylight.

3. The Subsidy Flow

Portal Registration – Create an account on the national portal pmsuryaghar.gov.in. Fill in details about the household, electricity connection, and roof ownership.
DISCOM Feasibility – The portal forwards your application to the local DISCOM. They verify load, roof suitability, and net‑metering feasibility.
Vendor Selection – Choose a vendor registered under the scheme. The vendor will submit a detailed proposal, including system design and cost breakdown.
Installation & Inspection – After installation, the DISCOM inspector checks compliance with technical standards.
Subsidy Credit – Once approved, the central subsidy amount (up to Rs 78,000) is transferred directly to your bank account.

4. Net‑Metering Requirement

Before the subsidy is released, you must sign a net‑metering agreement with your DISCOM. This allows excess solar generation to flow back to the grid, earning you a credit on your electricity bill. The agreement must be in place before the final inspection.

5. State Top‑Ups

While the central subsidy is fixed, many states offer additional top‑ups. The amount varies by state, and the process is also managed through the same portal. For exact figures, contact your state DISCOM or visit the portal’s state‑wise section.

6. Financial Calculations

The central subsidy reduces the upfront capital cost, but you still need to finance the remaining balance. For a 2.5 kW system (Component B), the central subsidy would be:

First 2 kW: 2 × 30,000 = Rs 60,000
Additional 0.5 kW: 0.5 × 18,000 = Rs 9,000
Total: Rs 69,000 (below the Rs 78,000 cap)

For a 4 kW system (Component C), the subsidy is capped at Rs 78,000, irrespective of the extra kilowatts.

7. Role of Software Platforms

Installers often use specialised software to generate subsidy‑aware proposals, track lead status over WhatsApp, and manage installation timelines. Platforms like SolarSwytch streamline these tasks, ensuring that every proposal reflects the correct Rs 30,000/Rs 18,000 calculations and GST impacts.

8. Timeline Overview

Stage	Approximate Duration
Portal registration	1��3 days
DISCOM feasibility	7–14 days
Vendor quotation & approval	5–10 days
Installation	7–15 days
Inspection & subsidy credit	5–10 days

These timelines can vary based on DISCOM workload and vendor availability.

9. Common Pitfalls

Missing roof ownership proof – Without clear documentation, the DISCOM may reject the application.
Applying as commercial – Farms classified under commercial tariffs are ineligible for the residential subsidy.
Delaying net‑metering – The subsidy is held back until the net‑metering agreement is active.

10. External Reference

For detailed technical standards on grid‑connected rooftop solar, refer to the Ministry of New & Renewable Energy (MNRE) guidelines at mnre.gov.in.

Component B C Under PM — Costs, Savings and Returns

Calculating the economic viability of Component B versus Component C requires looking at the total system cost, the subsidy impact, and the expected savings on electricity bills. Below we present a step‑by‑step analysis using the ground‑truth subsidy figures.

1. System Cost Estimates

The market price for a rooftop solar system (including panels, inverter, mounting, and installation) typically ranges from Rs 45,000 to Rs 55,000 per kW for residential projects. These figures are industry averages and do not include any state top‑up.

Component	Capacity	Capital Cost (₹)	Central Subsidy (₹)	Net Out‑of‑Pocket (₹)
B	2 kW	90,000 – 110,000	60,000 (2 kW × 30,000)	30,000 – 50,000
B	2.5 kW	112,500 – 137,500	69,000	43,500 – 68,500
C	3 kW	135,000 – 165,000	78,000 (capped)	57,000 – 87,000
C	4 kW	180,000 – 220,000	78,000 (capped)	102,000 – 142,000

All costs are in Indian Rupees (₹).

2. Annual Energy Production

Assuming an average solar irradiance of 4.5 kWh/m²/day and a system performance ratio of 0.80, the expected annual generation is:

2 kW → ≈ 2 kW × 4.5 kWh × 365 × 0.80 ≈ 2,628 kWh/year
2.5 kW → ≈ 3,285 kWh/year
3 kW → ≈ 3,942 kWh/year
4 kW → ≈ 5,256 kWh/year

3. Savings on Electricity Bills

The average residential tariff is about ₹8 per kWh. Net‑metering credits the same rate for excess generation.

Component	Annual Generation (kWh)	Annual Savings (₹)
B – 2 kW	2,628	21,024
B – 2.5 kW	3,285	26,280
C – 3 kW	3,942	31,536
C – 4 kW	5,256	42,048

4. Payback Period

Payback is calculated as Net Out‑of‑Pocket ÷ Annual Savings.

Component	Net Out‑of‑Pocket (₹)	Annual Savings (₹)	Payback (years)
B – 2 kW	30,000 – 50,000	21,024	1.4 – 2.4
B – 2.5 kW	43,500 – 68,500	26,280	1.7 – 2.6
C – 3 kW	57,000 – 87,000	31,536	1.8 – 2.8
C – 4 kW	102,000 – 142,000	42,048	2.4 – 3.4

Even the larger Component C systems recover their cost within three years, after which the electricity is essentially free.

5. Additional Benefits

Reduced carbon footprint – Each kWh of solar replaces roughly 0.7 kg of CO₂.
Energy security – During daytime, you can run irrigation pumps directly from solar, lowering dependence on grid outages.
Potential resale value – A rooftop system can increase the market value of your farm property.

6. Sensitivity to Electricity Prices

If tariffs rise to ₹10 per kWh, savings increase proportionally, shortening the payback by about 20 %. Conversely, lower tariffs lengthen the period but the system still remains profitable over a 25‑year lifespan.

7. Financing Options

Many banks and NBFCs offer solar loans at interest rates between 8 % and 10 % per annum. With the subsidy reducing the principal, monthly EMIs become affordable for most farming households.

— use cases and scenarios (component b c under pm)

1. Small‑town family home (2.5 kW)

Ramesh lives in a semi‑urban town in Uttar Pradesh. His monthly electricity bill is around ₹2,200. He applies through pmsuryaghar.gov.in, gets DISCOM approval, and hires a registered installer.

Component b (inverter) – A 2.5 kW three‑phase inverter with built‑in MPPT, certified for net‑metering.
Component c (mounting) – A lightweight aluminium frame suited for his sloping tiled roof.

The central subsidy of ₹78,000 (capped) reduces his system cost to ₹65,000 after GST. Within 3 years, he enjoys up to 300 units free electricity per month, cutting his bill to almost zero.

2. Urban apartment with limited roof space (3 kW)

Sneha owns a 3‑BHK flat in Mumbai with a shared terrace of 60 sq m. She wants to leverage the subsidy but worries about space.

Component b – A compact, high‑efficiency inverter that fits under a balcony railing.
Component c – A ballasted mounting system that requires no permanent roof penetrations, satisfying the building’s structural guidelines.

Because the scheme allows grid‑connected setups, Sneha installs the system via a registered vendor, obtains net‑metering, and receives the full central subsidy. She also checks the state‑specific top‑up through her local DISCOM portal.

3. Farmer’s farmhouse (5 kW hybrid, but only 3 kW eligible)

Arun runs a small farm in Madhya Pradesh. While his overall energy need is 5 kW (including pump), the residential subsidy applies only to up to 3 kW of rooftop solar.

Component b – A 3 kW inverter that can later be expanded to a hybrid inverter for pump operation under the PM‑KUSUM scheme.
Component c – A sturdy steel structure designed to hold panels against seasonal winds.

He first secures the PM Surya Ghar Muft Bijli Yojana subsidy for the 3 kW portion, then later adds a separate PM‑KUSUM pump system. For more on how the two schemes interact, read our guide on Solar for Farmers: PM‑KUSUM Pumps & Plants Explained.

4. Commercial office converting part of the roof (3 kW pilot)

A boutique IT office in Bengaluru wants to showcase sustainability but can only claim the residential subsidy for a pilot 3 kW installation on its staff housing area.

Component b – An inverter with advanced monitoring, allowing the office to view real‑time generation on a dashboard.
Component c – A modular mounting system that can be expanded later for a larger commercial setup (which would be funded through other schemes).

The pilot helps the firm meet its ESG goals while enjoying the subsidy’s cash relief.

5. Retrofitting an old house with roof repairs

Lakshmi’s 1990‑built house needs roof repairs before any solar can be installed. She worries the subsidy will be delayed.

Component b – She selects an inverter that supports partial shading, useful during the interim repair phase.
Component c – She opts for a mounting system that can be temporarily fixed and later made permanent once the roof work finishes.

By coordinating the roof repair schedule with the DISCOM’s feasibility visit, Lakshmi secures the subsidy without paying extra interest on a loan.

Linking the pieces together

All the scenarios above illustrate how component b c under pm—the inverter and mounting structure—play a pivotal role in unlocking the central subsidy and achieving reliable power generation. The right choices reduce technical losses, speed up DISCOM approvals, and keep the project within the scheme’s cost caps.

For installers looking to streamline proposals, calculate GST, and stay compliant with the subsidy rules, platforms like SolarSwytch provide a single pane of glass to manage every step—from lead capture on WhatsApp to final subsidy credit.

Component B C Under PM – Step‑by‑Step Roadmap for Homeowners

Check Eligibility – Verify that you own the roof, have a valid electricity connection, and have not received any prior solar subsidy. The scheme applies only to residential rooftop grid‑connected systems.
Calculate Desired Capacity – Decide how many kilowatts you need. The central subsidy is Rs 30,000 per kW for the first 2 kW and Rs 18,000 per kW for the next 1 kW. For a system of 3 kW or more, the total central subsidy caps at Rs 78,000.
Visit the Official Portal – Go to pmsuryaghar.gov.in. Register with your Aadhaar, mobile number, and electricity bill details.
Enter System Size – The portal will automatically compute the central subsidy based on the figures above. No other numbers should be entered.
Upload Required Documents – Provide proof of roof ownership, electricity bill, and a declaration that no earlier solar subsidy was taken.
DISCOM Feasibility Check – After submission, your local DISCOM will verify roof suitability and net‑metering feasibility. This step may involve a site visit by DISCOM staff.
Select a Registered Vendor – Choose an installer who is registered on the portal. The installer will generate the technical design, including panel layout, inverter size, and wiring diagram.
Prepare the Proposal – The installer can use a software platform like SolarSwytch to create a GST‑aware quotation that automatically reflects the Rs 30,000/ kW and Rs 18,000/ kW subsidies. This avoids manual spreadsheet errors.
Sign the Net‑Metering Agreement – Before any equipment is delivered, sign the net‑metering contract with your DISCOM. The agreement is mandatory for subsidy disbursement.
Installation Scheduling – The vendor will schedule the installation, typically within 2‑4 weeks after the DISCOM approval.
System Installation – Qualified technicians mount the panels, connect the inverter, and tie the system to the grid as per DISCOM guidelines.
Inspection by DISCOM – Once installed, the DISCOM inspector will verify that the system matches the approved design and that safety standards are met.
Commissioning & Net‑Metering Activation – After inspection, the DISCOM activates net‑metering. Your meter will now spin backwards when you generate surplus power.
Subsidy Credit – Within a few weeks of activation, the central subsidy amount (up to Rs 78,000) is transferred directly to your bank account.
State Top‑Ups (If Any) – Some states provide additional subsidies. The amount varies, so check your state DISCOM or the portal for details.
Monitor Savings – Use your utility bill to track how much electricity you are saving each month. The scheme aims to deliver up to 300 kWh free electricity per month for eligible households.
Maintenance Planning – Schedule periodic cleaning and inverter checks. Good maintenance ensures you continue to enjoy the free electricity quota.
Future Upgrades – If you later expand beyond 3 kW, remember that the central subsidy remains capped at Rs 78,000. Any additional capacity will be self‑financed, but you will still benefit from net‑metering credits.
Stay Updated – Policy details may evolve. Keep an eye on announcements from PM Surya Ghar Muft Bijli Yojana and your DISCOM’s notifications.
Share Your Experience – Help neighbours understand the process by sharing your journey on social media or community groups.

Following these steps ensures a smooth application, installation, and subsidy receipt, letting you enjoy clean, free electricity at home.

Illustrative Example

Scenario: Mr. Sharma lives in a semi‑urban house in Madhya Pradesh. He wants to install a rooftop solar system that can cover his average monthly consumption of 250 kWh. After consulting an installer, he decides on a 3 kW system, which, according to the central subsidy structure, will fetch the maximum central benefit of Rs 78,000.

Step‑by‑Step Calculation:

Item	Calculation	Amount
Base subsidy (first 2 kW)	2 kW × Rs 30,000	Rs 60,000
Additional subsidy (next 1 kW)	1 kW × Rs 18,000	Rs 18,000
Total central subsidy		Rs 78,000
System cost (approx.)	3 kW × Rs 70,000 per kW*	Rs 210,000
Out‑of‑pocket after subsidy	Rs 210,000 − Rs 78,000	Rs 132,000

*The per‑kW cost is used only for illustration; actual quotes will be provided by the installer.

Process Flow:

Portal Registration – Mr. Sharma creates an account on pmsuryaghar.gov.in and enters “3 kW”. The portal automatically shows a subsidy of Rs 78,000.
Document Upload – He uploads his property deed, electricity bill, and a self‑declaration that no prior subsidy was taken.
DISCOM Approval – The local DISCOM reviews the roof layout and confirms net‑metering feasibility within 7 days.
Vendor Selection – He selects a registered installer. The installer uses a software tool (e.g., SolarSwytch) to generate a GST‑aware quotation that already deducts the Rs 78,000 subsidy, showing a net price of Rs 132,000.
Net‑Metering Agreement – Before any panels arrive, Mr. Sharma signs the net‑metering contract with the DISCOM.
Installation – Technicians mount the panels, connect a 3 kW inverter, and link the system to the grid.
Inspection & Activation – DISCOM inspection is passed, net‑metering is activated, and his meter begins to spin backward during daylight hours.
Subsidy Disbursement – Within three weeks, Rs 78,000 is credited to Mr. Sharma’s bank account.
Monthly Savings – With an average generation of 4 kWh per kW per day, the 3 kW system produces about 360 kWh per month. After meeting his own demand (250 kWh), the surplus 110 kWh is exported, offsetting his bill and contributing toward the scheme’s target of 300 kWh free electricity per month.

Key Takeaways:

The central subsidy is calculated strictly on the first 3 kW. Any capacity beyond that will not attract additional central funds.
State‑level top‑ups, if available, can further reduce the out‑of‑pocket cost, but amounts differ by state.
Net‑metering must be in place before the subsidy is released.

This example demonstrates how a typical Indian homeowner can navigate the component b c under pm landscape, from eligibility to enjoying free electricity.

Component B C Under PM – Alternatives and Comparison

While PM Surya Ghar Muft Bijli Yojana is the flagship residential subsidy, other options exist for Indian homeowners. Below is a comparison of the main alternatives, focusing on eligibility, subsidy amount, and procedural complexity.

Feature	PM Surya Ghar Muft Bijli Yojana (central)	State‑Level Rooftop Subsidy	Private Solar Loans	Solar Lease / PPA
Target audience	Residential rooftop grid‑connected only	Residential, sometimes commercial	Any homeowner with credit	Any homeowner willing to lease
Subsidy amount	Rs 30,000/kW (first 2 kW) + Rs 18,000/kW (next 1 kW); max Rs 78,000	Varies by state; amounts not standardized	None (interest applies)	None (fixed lease rate)
Maximum system size for subsidy	≥3 kW (cap at Rs 78,000)	Usually up to 5 kW, but varies	No limit (subject to loan)	Typically 3‑5 kW
Application portal	pmsuryaghar.gov.in (national)	State DISCOM portals (different URLs)	Bank or NBFC portal	Lease company portal
DISCOM involvement	Mandatory net‑metering approval	Mandatory net‑metering approval	Required for net‑metering, but loan is separate	Required for net‑metering
Funding source	Central government	State government	Private financial institutions	Solar service provider
Repayment	No repayment; subsidy credited to bank	May require repayment if top‑up is a loan	EMI over 5‑10 years	Fixed monthly lease payment
Impact on GST	GST‑aware proposals can be generated via platforms like SolarSwytch	GST may apply on state top‑up	GST on loan processing fees	GST on lease payments
Complexity	Medium – portal, DISCOM, vendor registration	Medium to high – multiple state portals	Low to medium – loan paperwork	Low – provider handles installation & maintenance
Eligibility restrictions	No prior solar subsidy, roof ownership, valid electricity connection	Similar, but some states allow renters	Credit score, income proof	Credit check, lease term agreement
Free electricity target	Up to 300 kWh per month	Varies, often linked to subsidy amount	None	Depends on lease agreement

When to Choose Each Option

PM Surya Ghar Muft Bijli Yojana is ideal if you want a government‑backed cash subsidy and are comfortable with the portal process. It works best for systems up to 3 kW where the central cap of Rs 78,000 provides the maximum benefit.
State‑Level Rooftop Subsidy can supplement the central amount. Since the exact top‑up varies, check your state DISCOM’s website for details.
Private Solar Loans are useful if your desired system size exceeds 3 kW and you need additional financing. The loan interest is a cost, but you retain full ownership of the system and can still claim net‑metering credits.
Solar Lease / PPA suits homeowners who prefer a hassle‑free model: the provider installs, maintains, and you pay a fixed monthly fee. No upfront capital, but you do not own the asset.

For a deeper dive into how the broader PM‑KUSUM framework supports farmers, see the article on Solar for Farmers: PM‑KUSUM Pumps & Plants Explained.

If you are curious about the upcoming expansion of the scheme and its impact on subsidies, read PM‑KUSUM 2.0: What the Rs.50,000 Crore Expansion Means.

Choosing the right path depends on your budget, system size, and willingness to engage with government portals. Evaluate each alternative against the table above to decide which fits your rooftop solar aspirations best.

Frequently Asked Questions

1. What does “component b c under pm” refer to?

Component B is the inverter that converts DC to AC power, while Component C is the mounting structure that holds the panels. Both are essential parts of a rooftop solar system eligible for the PM Surya Ghar Muft Bijli Yojana subsidy.

2. How is the subsidy calculated for components B and C?

The central subsidy of ₹30,000 per kW (first 2 kW) and ₹18,000 per kW (2‑3 kW) is applied to the total system cost, which includes panels, inverter (Component B), mounting (Component C), wiring and installation. The amount is capped at ₹78,000 for systems of 3 kW and above.

3. Are there any state‑specific top‑up amounts for component b c?

State top‑ups vary by DISCOM. The official portal pmsuryaghar.gov.in provides links to each state’s guidelines. You should check there for the latest figures before finalising your proposal.

4. Can I choose any inverter brand for Component B?

Yes, but the inverter must meet Indian standards (IS‑16287) and be compatible with the panel voltage. Selecting a high‑efficiency inverter (≥96 %) helps you get more electricity out of the same system size.

5. Does the subsidy cover the cost of the mounting structure (Component C)?

Yes, the mounting structure cost is part of the total system cost considered for the subsidy. However, the subsidy amount is fixed, so higher‑cost mounts reduce the net cash benefit you receive.

6. How do I verify that my installer is registered for the scheme?

Visit pmsuryaghar.gov.in and search the vendor list. Registered installers can generate subsidy‑aware proposals and are authorized to claim the central amount on your behalf.

7. What is the role of net‑metering in receiving the subsidy?

A net‑metering agreement with your local DISCOM is mandatory. After installation, the DISCOM inspects the system, and once the agreement is active, the subsidy amount is credited to your bank account.

8. Is a battery required for Component B under the scheme?

No. Batteries are not part of the PM Surya Ghar Muft Bijli Yojana eligibility. You may add a battery later, but it will not be subsidised.

9. Can I install a system larger than 3 kW?

Yes, but the central subsidy is capped at ₹78,000 for any system of 3 kW or more. Larger systems may still be worthwhile for higher electricity savings, but the subsidy will not increase.

10. How long does the subsidy disbursement take after installation?

The exact processing time varies by DISCOM. After net‑metering activation and inspection, the DISCOM forwards the claim to the central authority, which then credits the amount to your bank account. Check the portal for any updates.

11. Do I need to pay any application fee for the subsidy?

The scheme does not prescribe a universal application fee. Any fee, if applicable, is determined by the state DISCOM. Refer to pmsuryaghar.gov.in for details.

12. What documents are required for the subsidy claim?

You will need proof of identity, address, electricity bill, ownership proof of the roof, a copy of the net‑metering agreement, and the invoice from the registered installer showing a breakdown of Component B and Component C costs.

13. Is GST applicable on the subsidy amount?

The subsidy is a direct cash transfer and is not subject to GST. However, the invoice you receive from the installer will include GST on the total system cost, which the installer can offset in their own filings.

14. Can I claim the subsidy if I have already received a solar grant before?

No. The eligibility criteria state that the household must not have availed any prior solar subsidy under any central or state scheme.

15. Does the roof orientation affect the subsidy amount?

No. The subsidy is based solely on system capacity, not on orientation or performance. However, better orientation improves energy generation, giving you more savings.

16. What if my roof is partially shaded?

Shading reduces output but does not affect subsidy eligibility. You may need to redesign the layout or use micro‑inverters (Component B) to mitigate shading losses.

17. Are there any penalties for exceeding the subsidy cap?

There is no penalty; the subsidy simply stops at ₹78,000. Any excess cost becomes your responsibility.

18. Can I transfer the subsidy to another bank account?

The subsidy is credited to the bank account provided during the application. Changing the account later requires a formal request to the DISCOM and may delay the transfer.

19. How often can I apply for the subsidy?

Each household can apply only once under the PM Surya Ghar Muft Bijli Yojana. Subsequent installations must be self‑financed.

20. Is there a limit on the number of panels I can install?

The scheme does not limit panel count, but the subsidy calculation stops at 3 kW. Installing more panels beyond that size will not increase the subsidy amount.

21. Do I need to submit a separate application for Component B and Component C?

No. The single application on pmsuryaghar.gov.in covers the entire system, including panels, inverter (Component B), mounting (Component C), and installation.

You can read about the farmer‑focused scheme in articles such as Solar for Farmers: PM‑KUSUM Pumps & Plants Explained and the upcoming expansion in PM‑KUSUM 2.0: What the Rs.50,000 Crore Expansion Means.

Conclusion

Choosing the right component b c under pm is more than a technical decision; it directly influences how much of the central subsidy you actually keep in your pocket. By selecting an efficient inverter and a durable mounting structure that suit your roof and local climate, you maximise the electricity generated and minimise future maintenance costs.

Remember to verify that your installer is registered on pmsuryaghar.gov.in, obtain a net‑metering agreement, and keep all invoices that clearly break down the costs of Component B and Component C. This transparency speeds up the subsidy credit to your bank account and ensures compliance with the scheme’s guidelines.

If you are ready to move forward, start by gathering your roof‑ownership documents and electricity bills, then log onto the official portal to begin the online application. For further reading on how solar policies are evolving for Indian households and farmers, explore the related post on PM‑KUSUM Scheme 2026: Solar Subsidy for Farmers Explained.

Finally, consider using a specialised solar‑installer operating system to manage leads, generate subsidy‑aware proposals, and track the installation from start to finish. Platforms like SolarSwytch help installers stay organised, which in turn gives you a smoother experience from quotation to the day your rooftop starts feeding free electricity into your home. Take the next step today – a brighter, cheaper, and greener future is just a few clicks away.