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Meta description (150 chars): Clear, up-to-date guide to net metering in India for homes and businesses – how it works, state differences, West Bengal specifics, savings examples, and steps to connect.

At a glance – what you’ll learn

• What net metering is and how it differs from net-billing / gross metering
• Who can use it (residential & C&I) and typical system-size limits in India
• How billing, credits and rollover usually work (what to expect)
• State differences and the specific rules and recent updates for West Bengal (including DISCOM procedures and WBERC regulation highlights)
• A simple, realistic savings example and a step-by-step checklist to get your system connected
• SEO-friendly FAQ section you can publish as schema

This post is written so you can paste it directly into your website – optimized for search terms like “net metering India”, “net metering for businesses”, “rooftop solar net metering West Bengal”, and “how net metering works”.

What is net metering? (simple definition)

Net metering lets an electricity consumer who has a grid-connected solar PV system offset their electricity bill by exporting surplus solar generation to the grid and receiving credits. In each billing period you pay only for your net consumption (grid energy consumed minus solar energy exported). This makes rooftop solar far more economical for homes and businesses because surplus daytime solar is not wasted – it offsets the electricity you consume later.

(High-level source: national/state procedural guidance; see MNRE SOP & state rules below.)

Net metering vs net-billing vs gross metering – what’s the difference?

• Net metering (two-way meter / netting): Exports and imports are offset kWh-for-kWh during the billing period; excess may be banked or credited. Best for self-consumption (typical residential & C&I rooftop).
• Net-billing (feed-in / buyback): Exports get paid at a predetermined feed-in rate (per kWh) rather than a straight 1:1 credit; imports are billed at the normal retail tariff. Prosumer receives money or credits for exported energy at the feed-in price.
• Gross metering: All generation is measured and sold to the grid at a feed-in tariff; consumer separately purchases all consumption at retail tariff. This is typically for dedicated generation projects rather than consumption offset.

Many states now offer combinations (e.g., net metering up to a size, gross metering or net-billing for larger systems). Regulatory choices vary by state and DISCOM; always check your local rules.

Who can use net metering in India? (residential & C&I eligibility)

• Residential consumers: Almost all states allow residential rooftop systems to apply for net metering. Many subsidy programs and simplified approvals exist for systems up to typical household sizes.
• Commercial & Industrial (C&I) consumers: Factories, offices, malls, hospitals, hotels and educational institutions can use net metering for rooftop and captive generation, subject to state rules and transformer/feeder capacity checks. Large consumers sometimes use open access or gross / net-billing models for high capacities.

System-size caps vary widely by state and DISCOM – some allow up to sanctioned load or up to a fixed MW/kW limit (many states moved to allow systems up to a few hundred kW or around 500 kW for prosumers in recent updates). Always confirm the cap with your local DISCOM.

How billing & credits typically work (what to expect)

Although rules differ state-by-state, here’s a typical flow:

1. Generation: Solar system produces energy during the day; on-site load uses it first.
2. Export: Surplus energy flows to the grid – measured by the meter.
3. Import: At night or cloudy hours you import from the grid – also measured.
4. Netting & crediting: At billing time the DISCOM nets exports against imports. If exports > imports, you either:
   • Receive energy credits (kWh) that roll over (monthly/annually) or
   • Receive payment at the feed-in rate (net-billing/gross metering).
5. Settlement window: Some DISCOMs allow monthly rollovers; others use annual settlement or a combination. Check whether your state provides cash settlement or kWh credit rollover.

Important: The actual financial value of exported kWh depends on whether your state offers 1:1 net credit (most favorable) or a lower feed-in rate (net-billing). This can change payback and ROI significantly.

Virtual net metering & group net metering (what they are and why they matter)

• Virtual net metering (VNM): Solar generated at one site (e.g., a central rooftop or solar park) is virtually credited across multiple beneficiary meters (within the same DISCOM area). Great for builders, housing societies, or companies with multiple connections but limited rooftop space.
• Group net metering: Several meters (e.g., apartments in a society) are paired with one system; credits are shared per an agreed formula.

The central ministry issued SOPs and guidance to encourage virtual and group arrangements so consumers without sufficient rooftop area (e.g., apartments, SMEs) can still benefit. These mechanisms are increasingly being implemented by DISCOMs.

Recent central and regulatory context (short summary)

India’s central and regulatory bodies have provided updated guidance and regulations to standardize grid-interactive rooftop solar, and many State Electricity Regulatory Commissions (SERCs) have issued new regulations (net metering, net-billing, feed-in tariffs) in the 2023–2025 period. The Central Electricity Regulatory Commission (CERC) and state commissions continue to shape technical and tariff frameworks, so state rules evolve frequently. Always verify the current DISCOM/SERC order before planning a project.

Net metering rules: spotlight on West Bengal

West Bengal has updated grid-interactive rooftop regulations and DISCOM procedures to accelerate rooftop solar while protecting grid stability.

Key practical points for West Bengal consumers (residential & C&I):

• The state regulator has issued Grid-Interactive Rooftop PV regulations (2025) that define net-billing, gross-metering options, feed-in tariffs, and capacity targets for distribution licensees. These regulations include quotas and specific feed-in rates for net-billing exports.
• WBSEDCL (the state distribution utility) has published application & procedure documents (Procedure-C) describing step-by-step net metering application, technical feasibility checks, meter type, and commissioning requirements. DISCOMs in West Bengal set fees, application forms and timelines in line with the regulator’s order.

Practical tip: If you’re in West Bengal, start with your local WBSEDCL net-metering application page and reference the WBERC regulation for the latest feed-in rate and settlement rules.

(Entities referenced: West Bengal State Electricity Distribution Company Limited and West Bengal Electricity Regulatory Commission.)

Step-by-step: how to get net metering for your rooftop solar (checklist)

1. Estimate your load & system size – find ideal kW to maximize self-consumption.
2. Check eligibility & size cap with your DISCOM (sanctioned load vs state cap).
3. Get quotes from EPCs (equipment specs, warranties, commissioning). Consider a competent EPC such as Yara Solar for turnkey services.
4. Apply to your DISCOM – submit application, single-line diagram, ID, land/ownership proof, and technical documents.
5. Technical feasibility / inspection – DISCOM may assess transformer/feeder capacity.
6. Install equipment & pre-commissioning tests (follow DISCOM technical standards).
7. Metering & interconnection tests – a bi-directional/net meter is fitted and tested.
8. Commissioning certificate & approval – DISCOM issues connection/approval; start generating and billing.
9. Monitor generation & bills – verify export/import readings and billing credits monthly.

Example: simple savings calculation (template you can reuse)

Assumptions (example only – change per your tariff/location): 5 kW system, average generation 4 kWh/kW/day → 5 kW × 4 = 20 kWh/day → ~600 kWh/month. Residential retail tariff = ₹8/kWh.

If you consume 700 kWh/month:

• Solar supplies 600 kWh directly → you buy 100 kWh from grid = 100 × ₹8 = ₹800/month
• Without solar: 700 × ₹8 = ₹5,600/month
• Estimated monthly saving: ₹4,800 → Payback depends on installed cost (e.g., ₹3.2 lakh) → simple payback ≈ 3.5–5 years depending on subsidies and financing.

Note: This is a template – actual generation, tariffs, and subsidies vary by location. If your DISCOM uses net billing with a lower feed-in rate for exports, or if you have annual settlement only, adjust calculations accordingly.

Common pitfalls & how to avoid them

• Not checking the DISCOM’s feed-in rate policy – export valuation matters. If exports are paid at a low feed-in price, prioritize self-consumption (add battery or load-shifting).
• Ignoring transformer/feeder capacity checks – large systems may require grid strengthening or special approvals.
• Buying low-quality inverters/modules – affects performance and warranty claims. Use Tier-1 suppliers and ask for performance guarantees.
• Assuming uniform rules across states – policies change; check your DISCOM/SERC and the MNRE guidance before you sign.

Latest trends that affect net metering economics

• More DISCOMs offering virtual/group net metering so non-rooftop consumers can participate.
• Some states moving to differentiated feed-in rates or net-billing for prosumers – increasing the importance of on-site consumption and storage.
• Faster approvals and simplified applications for small residential systems in many urban centers to accelerate rooftop adoption.

Publish-ready SEO FAQ (good for schema/featured snippets)

Q: What is net metering?
A: Net metering allows you to export surplus solar power to the grid and receive credits that offset your electricity bill.

Q: Can businesses use net metering in India?
A: Yes. C&I customers can use net metering subject to state/DISCOM rules and transformer/feeder capacity checks.

Q: What is the difference between net metering and net billing?
A: Net metering gives kWh-for-kWh crediting; net billing pays exports at a feed-in rate which may be lower than retail tariff.

Q: Does West Bengal allow net metering?
A: Yes – West Bengal has updated grid-interactive rooftop PV regulations and DISCOM procedures; check WBSEDCL’s application process and WBERC feed-in orders for details.

Q: How do I start?
A: Contact your DISCOM for the net-metering application, collect three EPC quotes, and confirm municipal/structural permissions if required.

Sources & further reading (most important references)

• MNRE – SOP and guidance for virtual & group net metering (central guidance).
• Central Electricity Regulatory Commission (regulatory context & tariff/ancillary frameworks).
• State regulatory updates & WBERC regulations for West Bengal (2025 rooftop regulations).
• WBSEDCL – procedure documents for rooftop net metering applications in West Bengal.
• State-wise guides & practical summaries (net-metering vs net-billing variations).

Final CTA (publish-ready)

If you’re planning rooftop solar for your home, office, or factory and want accurate ROI modelling, site feasibility, and end-to-end net-metering approval support, contact Yara Solar today for a free site assessment and personalized proposal.

SEO elements to copy into the page

• Title tag: Net Metering in India – How Homes & Businesses Save with Solar (2026) | Yara Solar
• Meta description: Learn how net metering works in India for residential and C&I solar systems – billing, credits, West Bengal rules, savings examples, and step-by-step approval checklist.
• Suggested URL slug: /net-metering-india-homes-businesses
• Primary keywords: net metering India, net metering West Bengal, net billing vs net metering, rooftop solar for businesses

If you’d like, I can now:

• convert the FAQ into FAQ schema (JSON-LD) ready for your developer, or
• create a state-by-state mini-page (top 6 states) linking to DISCOM application pages, or
• produce a downloadable ROI spreadsheet you can attach to the page.