Frequently Asked Questions

Solar in Maharashtra, answered clearly.

Straight answers on MSEDCL net-metering, billing, the PM Surya Ghar residential subsidy and how rooftop solar actually works — for homes, businesses and institutions across Maharashtra.

SECTION A

Maharashtra Solar Policy & Norms

How rooftop solar is regulated in Maharashtra, from MSEDCL applications to structural requirements.

What is the MSEDCL net-metering process for rooftop solar?

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Consumers submit an online application to MSEDCL with site, load and proposed system details. After technical feasibility clearance, the system is installed by an empanelled EPC, inspected by the DISCOM/CEI, and a bi-directional net meter is installed before commissioning. Raymax Solar manages the paperwork, drawings, inspection coordination and final commissioning on your behalf.

What is the difference between net metering and gross metering under MSEDCL?

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Under net metering, solar generation first offsets on-site consumption and only the surplus is exported; you're billed on the net units. Under gross metering, the entire solar output is exported to the grid at a fixed feed-in tariff and your consumption is billed separately. Residential and most small commercial rooftop consumers in Maharashtra typically opt for net metering.

What is the Maharashtra rooftop solar policy in brief?

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Maharashtra's rooftop solar framework, aligned with MERC regulations, allows residential, commercial, industrial and institutional consumers to install grid-connected rooftop PV within their sanctioned load, with defined caps on system capacity relative to sanctioned load and a standardised net-metering process through the DISCOM.

What approvals and timelines are involved?

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Typical steps are: (1) online DISCOM application and document upload, (2) technical feasibility approval, (3) installation and internal testing, (4) DISCOM/CEI inspection where applicable, and (5) net-meter installation and commissioning. End-to-end timelines vary by DISCOM circle and system size, but residential systems usually complete in a few weeks once documents are in order.

What structural and roof-ownership requirements apply?

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The applicant generally needs to be the electricity connection holder or have written consent from the connection holder and roof owner. The roof must be structurally sound for the proposed array and mounting system; for housing societies and shared roofs, a society NOC is typically required.

How does DISCOM registration and empanelment work?

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MSEDCL maintains a list of empanelled vendors/EPCs authorised to execute rooftop solar work under its net-metering framework. Choosing an empanelled integrator like Raymax Solar simplifies application processing, inspections and warranty compliance.
SECTION B

General Solar FAQs

How solar photovoltaic systems work and what to expect over their lifetime.

How does a solar PV system work?

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Solar panels convert sunlight into DC electricity. An inverter converts this DC into AC that matches your grid, powering on-site loads first, exporting surplus to the grid (on-grid/hybrid) or charging a battery bank (hybrid/off-grid) for use when the sun isn't shining.

What's the difference between hybrid, on-grid and off-grid systems?

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On-grid systems export surplus to the utility and rely on the grid at night; they have the lowest cost per kWh but no backup during outages. Hybrid systems add batteries so critical loads keep running during outages and can shift solar to peak-tariff windows. Off-grid systems have no utility connection and rely entirely on solar plus battery (and sometimes a generator).

How long does a solar system last?

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Quality Indian-made solar panels are warranted for around 25 years of production. Inverters typically last 10–15 years and may need replacement mid-life. Batteries generally last 5–15 years depending on chemistry and cycling. A well-maintained system stays productive for its full design life.

What maintenance does a solar system need?

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Rooftop solar is low-maintenance: periodic cleaning of panels, visual and thermal inspections, checking of connections and mounting hardware, inverter firmware updates and remote performance monitoring. Raymax Solar offers scheduled O&M plans covering all of the above.

How much do solar panels degrade over time?

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ALMM-listed Indian modules typically degrade in the range of 0.4–0.6% per year, meaning most panels still produce roughly 85–90% of their initial output after 25 years. Degradation curves are guaranteed under the manufacturer's linear performance warranty.

Is solar suitable for Maharashtra's climate?

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Yes. Maharashtra receives strong solar irradiance across most of the year, making it one of India's high-yield states for rooftop solar. Systems are designed for local temperature coefficients, monsoon wind loads and dust conditions, and regular cleaning during the dry months keeps yields close to design values.
SECTION C

Billing & Net Metering FAQs

How solar generation shows up on your MSEDCL electricity bill.

How does solar impact my electricity bill?

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During daylight hours, your loads are served by solar first; only the shortfall is drawn from the grid. Surplus solar is exported and credited on your bill (in units, not rupees, under net metering). Over a billing cycle, you're charged for the net grid units consumed, which typically reduces your bill significantly.

Net metering vs gross metering — which one applies to me?

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Most residential and small commercial consumers in Maharashtra use net metering, where solar first offsets on-site use. Gross metering — where all solar output is exported at a fixed tariff — is used in specific segments and larger systems. Raymax Solar advises based on your consumption pattern and category.

How do MSEDCL billing cycles and credits work?

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Exported units are credited against imported units within the billing cycle. Unused credits are typically carried forward to subsequent months within the settlement period defined by MERC/MSEDCL, and settled at the end of the settlement year per the applicable regulation.

What happens if I generate more than I consume?

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Excess generation is exported to the grid and accumulates as unit credits. At the end of the defined settlement period, any residual credits are settled per the applicable MERC tariff regulation. System sizing is normally optimised so exports and imports are reasonably balanced.

Do I still receive a monthly MSEDCL bill?

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Yes. You'll continue to receive a monthly bill showing imported units, exported units, net units and any fixed charges. Even a well-sized rooftop system usually leaves a small fixed component payable each month.
SECTION D

Government Subsidy FAQs (India)

Central schemes and MNRE CFA slabs for rooftop solar in India.

What is PM Surya Ghar Muft Bijli Yojana?

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PM Surya Ghar Muft Bijli Yojana is the Government of India's flagship scheme to expand rooftop solar for residential consumers. It provides a Central Financial Assistance (CFA) subsidy on approved system sizes, delivered through the National Portal and disbursed after commissioning and inspection.

How are MNRE CFA subsidy slabs structured?

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MNRE structures the residential CFA in tiered slabs based on installed capacity — the per-kW subsidy is higher for the first few kilowatts and reduces for larger residential systems, with an overall cap per household. Slabs are periodically revised; exact per-kW amounts should be confirmed on the MNRE / National Portal before finalising your order.

Who is eligible for the residential rooftop solar subsidy?

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Eligibility generally requires an individual residential electricity connection in the applicant's name, a suitable rooftop, use of MNRE-empanelled models and vendors, and installation under the DISCOM's net-metering framework. Housing societies and group-housing installations have separate provisions.

How do I apply for the subsidy?

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Applications are filed through the National Portal for Rooftop Solar. In outline: register, submit your DISCOM and consumer details, obtain feasibility approval, get the system installed by an empanelled vendor, upload commissioning documents and receive the subsidy directly to your bank account after DISCOM inspection. Raymax Solar assists with the entire filing process.

Is there a subsidy for non-residential or commercial installations?

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The residential CFA under PM Surya Ghar does not extend to commercial, industrial or institutional consumers. However, C&I customers can typically avail accelerated depreciation, GST input credits and, in some cases, state-level incentives — significantly improving project economics even without a direct subsidy.

What are typical processing timelines for the subsidy?

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Subsidy disbursal generally follows successful commissioning, DISCOM inspection and net-meter installation. Timelines vary by DISCOM circle and portal workload; keeping documentation clean and using an empanelled EPC materially speeds up the process.
Please note

Policy details, MSEDCL procedures, MNRE CFA subsidy slabs and settlement rules are periodically revised. The answers above are general guidance only — please confirm current rates, tariffs and eligibility terms with MSEDCL, MNRE / the National Portal for Rooftop Solar, or directly with Raymax Solar before finalising your project.

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