Suryaghar Sanctioned Load Mismatch — Fix in 2026

Fix PM Suryaghar applications where sanctioned load is less than your solar capacity in 2026 — load enhancement process, DT capacity check, and decision framework.

Heaven Green Energy
Solar Energy Expert
Suryaghar Sanctioned Load Mismatch — Fix in 2026

The single biggest reason PM Suryaghar applications stall in 2026 has nothing to do with documents, vendors, or panels — it is the sanctioned load mismatch. Households with a 2 kW sanctioned load on their electricity bill want a 3 kW system to claim the full ₹78,000 PM Suryaghar subsidy, but the DISCOM (Distribution Company) rejects the application within hours because the rule is hard-coded into the national portal: rooftop solar capacity in kilowatts (kW) cannot exceed the sanctioned load printed on your bill. Roughly one in six rejections we see across northern Indian DISCOMs trace back to this single line on the bill, and almost every one of them was preventable with a 15-day load enhancement filed in advance.

This guide walks through exactly how the sanctioned load constraint works under PM Suryaghar, how to read your own bill, how to file a load enhancement application with your DISCOM in 2026, what to do when your Distribution Transformer (DT) cannot handle the upgrade, and the named decision framework we use to advise residential customers across Rajasthan, Maharashtra, Gujarat, and Karnataka.

Direct answer. PM Suryaghar caps your solar system size at your sanctioned load on the bill — so a 2 kW sanctioned home cannot legally install 3 kW and claim the ₹78,000 maximum subsidy without first filing a load enhancement application with the DISCOM. Enhancement takes 15–25 days, costs ₹100–₹500 application fee plus ₹50–₹200 per kW security deposit, and requires DT capacity headroom. File the load enhancement first, then submit the Suryaghar application. Heaven Green Energy files both in parallel for our residential customers.

If you have already started the Suryaghar application and hit the “system size exceeds sanctioned load” error, do not abandon the application — withdraw it cleanly, file the load enhancement, and resubmit. The full path back is in §6 of this guide.

Why Sanctioned Load Matters for PM Suryaghar

Sanctioned load is the maximum power, measured in kilowatts (kW) or kilovolt-amperes (KVA), that your DISCOM has formally approved your service connection to draw. It is printed on every monthly electricity bill — usually next to “Sanctioned Load”, “स्वीकृत भार”, “मंजूर भार”, or “Contract Demand” depending on the state. For most residential consumers in India, sanctioned load sits between 1 kW and 5 kW; new flats often get only 2 kW even when the meter is capable of much more.

PM Suryaghar: Muft Bijli Yojana, administered by the Ministry of New and Renewable Energy (MNRE), has one technical constraint baked into the pmsuryaghar.gov.in portal: rooftop solar capacity ≤ sanctioned load. The portal pulls your sanctioned load directly from the DISCOM database when you enter your consumer number, and if you try to apply for a system size that exceeds it, the portal blocks the submission with an error rather than letting it through to DISCOM feasibility review.

The financial impact of staying capped at your existing sanctioned load is severe. The MNRE subsidy schedule is tiered — ₹30,000 for 1 kW, ₹60,000 for 2 kW, and ₹78,000 for 3 kW or more. A household with a 2 kW sanctioned load that installs 2 kW gets ₹60,000 and loses ₹18,000 of headroom that a 1 kW enhancement would have secured. Across the next 25 years, the same enhancement also adds an extra ~1,650 kWh per year of generation worth ₹11,500 annually at typical tariffs, which compounds to over ₹2.8 lakh of lifetime savings before degradation adjustment.

This is why we treat sanctioned load as a Stage 0 check — before bills, before Aadhaar, before vendor selection. If your sanctioned load is below your target system size, the entire timeline shifts: load enhancement runs as a 15–25 day pre-step, the Suryaghar application follows, and the total project clock moves from 60 days to 75–85 days. That is still inside any reasonable installation window, but only if you start the enhancement on day one.

The DISCOM side of this is straightforward — the local distribution network is engineered for the cumulative sanctioned load on each feeder. Rooftop solar exports power back through the same wires, and if the system size exceeds what the network was designed to handle, voltage rises beyond safe limits and other consumers on the same feeder suffer. The sanctioned load rule is a proxy for “this address is engineered to handle this much current in either direction”.

Read your bill carefully. The figure you want is usually labelled “Sanctioned Load” in kW. Some DISCOMs print it in KVA (kilovolt-amperes), in which case you can use a 0.9 power factor conversion — 3 KVA approximately equals 2.7 kW. Other bills show “Connected Load” instead; for PM Suryaghar, the figure that matters is sanctioned, not connected. If in doubt, call the DISCOM consumer helpline with your consumer number ready.

17%
Rejections from load mismatch
Heaven Green data, 2024–25 residential
15–25 days
Enhancement timeline
DISCOM application to revised bill
₹150–₹1,100
Total enhancement fee
Application + 1–3 kW security deposit
12%
Need DT upgrade
Of enhancement applications, 2025

The 3-Decision Sanctioned Load Strategy

When a residential customer comes to Heaven Green with a sanctioned load lower than their target solar capacity, we run them through what we call The 3-Decision Sanctioned Load Strategy. It is a sequenced framework — each decision feeds into the next, and skipping a step almost always creates rework. The framework replaces what is usually a panicked back-and-forth with the DISCOM with three clean yes/no questions.

Decision 1 — Enhance the Load or Cap the Solar System

This is the financial decision. You have two paths: file a load enhancement and access the full 3 kW / ₹78,000 subsidy band, or stay at your current sanctioned load and build a smaller system. The right answer depends on your monthly bill, your roof area, and your appetite for a 15–25 day pre-step before the Suryaghar timeline begins.

Cap the system at current load when your monthly consumption stays consistently below 250 kWh per month, your roof has limited space for more than 2 kW anyway, or you are uncomfortable adding a delay to the project. The downside is real but bounded — a 2 kW system in most Indian cities still generates 240–280 kWh per month and saves ₹1,700–₹2,000 per month at upper-slab tariffs.

Enhance the load when your monthly consumption is consistently above 300 kWh, when your bill regularly hits the top slabs, when you have at least 30 m² of unshaded roof, or when you plan to add air conditioning or an electric vehicle in the next 3 years. The ₹18,000 extra subsidy (₹60,000 → ₹78,000) alone pays for the enhancement fee 30 times over.

Decision 2 — Phase the Installation or Go All-at-Once

This is the timing decision. If you have decided to enhance the load (Decision 1 = Yes), you still have a choice on sequencing. The all-at-once path runs enhancement and Suryaghar as a single project — file the enhancement, wait for the revised bill, then submit Suryaghar with the new sanctioned load. This is the cleanest path and what we recommend for 80% of customers.

The phased path installs solar at your current sanctioned load now (e.g. 2 kW), claims the ₹60,000 subsidy, and adds an additional 1 kW after a separate enhancement and a fresh net metering application in year two or three. We use this path only for customers who are blocked by DT loading (see Decision 3) or who need to defer the upfront cost. The downside of phasing is real — you pay vendor mobilisation and net meter charges twice, and the second 1 kW cannot claim subsidy because the original Suryaghar disbursement is already paid out.

Decision 3 — Confirm the DT Has Capacity for the Upgrade

This is the engineering decision and the most-skipped one. Your local Distribution Transformer (DT) — the pole-mounted or pad-mounted unit that steps voltage down for your street — has a finite KVA rating, typically 25 KVA, 63 KVA, 100 KVA, or 250 KVA depending on locality. Every consumer on that DT contributes to its loading. If your DT is already above 90% utilisation, the DISCOM will either deny your load enhancement, approve it conditionally with export restrictions, or require a DT upgrade at your cost before the enhancement goes through.

Before filing the enhancement, ask the DISCOM sub-divisional engineer for the current DT loading. Most DISCOMs publish this internally and will share it on request; some — including MSEDCL and BESCOM — show it via the consumer app. If your DT is over 90% loaded, jump to §5 of this guide for the recovery path.

How to Check Your Current Sanctioned Load

Before anything else, you need to know your current sanctioned load with certainty. There are four reliable ways to verify it in 2026, and we recommend using at least two of them to cross-check.

The simplest is the printed bill itself. Pull your most recent monthly bill — physical or PDF download — and locate the row labelled “Sanctioned Load”, “Sanc. Load”, “Connected Load”, “Contract Demand”, or the Hindi/regional equivalent. The figure will be in kW or KVA. For PM Suryaghar, kW is the comparison unit; if your bill shows KVA, multiply by 0.9 to approximate kW (since most residential power factors hover near 0.9). A 3 KVA sanctioned connection equals roughly 2.7 kW.

The second method is the DISCOM consumer portal. Every major DISCOM in India now has a self-service portal where, after logging in with your consumer number, you can view your service order — the formal document that records sanctioned load, tariff category, phase (single or three-phase), and connection date. For MSEDCL consumers in Maharashtra, this is in “My Account → Service Connection”. For BESCOM in Karnataka, it sits under “Consumer Profile”. For JVVNL in Rajasthan, the figure shows on every bill PDF.

The third method is calling the DISCOM helpline. Have your consumer number ready, ask explicitly for “current sanctioned load in kilowatts”, and request the answer in writing via SMS or email. Helplines are accurate but slow — expect a 20-minute call in many cases.

The fourth method is the pmsuryaghar.gov.in portal itself. When you enter your consumer number during Suryaghar registration, the portal pulls and displays your sanctioned load from the DISCOM database before letting you select system size. If you only want to verify the figure without applying yet, you can complete the OTP step, view the auto-pulled sanctioned load, and abandon the application without consequence.

What you read on the billWhat it meansAction under PM Suryaghar
Sanctioned Load: 1 kWOld single-phase connectionMaximum 1 kW system → ₹30,000 subsidy. Enhance to 3 kW for ₹78,000
Sanctioned Load: 2 kWStandard flat / small houseMaximum 2 kW → ₹60,000. Enhance to 3 kW for full ₹78,000
Sanctioned Load: 3 kWAdequate for max subsidyInstall 3 kW → ₹78,000. No enhancement needed
Sanctioned Load: 5 kWMid-sized house, possibly 3-phaseInstall up to 5 kW; subsidy capped at ₹78,000 anyway
Sanctioned Load: 7 kW+Large house with AC / EV / pool pumpInstall up to sanctioned load; consider 4–5 kW for self-consumption
Contract Demand: 3 KVAReading shown in KVA≈ 2.7 kW. Apply for 3 kW system requires enhancement to 3.5 KVA
Connected Load only shownBill missing sanctioned figureCall DISCOM and request sanctioned load in writing

Once you have a verified sanctioned load figure, compare it to the system size you want. If sanctioned load is greater than or equal to the system size, you can skip straight to the Suryaghar application — see our PM Suryaghar complete guide for the full process. If sanctioned load is less than the system size, continue to the next section.

Filing a Load Enhancement Application

A load enhancement application is a standalone request to your DISCOM to formally increase your sanctioned load. It runs entirely outside the PM Suryaghar portal — you file with the DISCOM directly, they survey and approve, and then your revised sanctioned load reflects on the next monthly bill. Only after that revised bill is generated can you submit the Suryaghar application at the new system size.

The application can be filed online for most DISCOMs in 2026. The MSEDCL “MahaVitaran” app and web portal accept enhancement requests end-to-end; you upload the latest bill, Aadhaar, ownership proof, and submit a digital signature. Tata Power Mumbai and Adani Electricity Mumbai both support fully digital enhancements. BESCOM in Karnataka allows enhancement during the Suryaghar application itself as a combined request — a useful shortcut we exploit for our Bengaluru customers.

For DISCOMs that have not yet digitised, the application is filed in person at the sub-divisional office. Gujarat’s MGVCL, UGVCL, DGVCL, and PGVCL still require a physical visit to update the bill records, even though the underlying form is online. Carry the same document set, get the receipt stamped, and follow up after seven working days for the DT capacity check confirmation.

The standard document set for enhancement is short: latest paid bill, Aadhaar (front and back), ownership proof (property tax receipt or sale deed), and the filled enhancement form. Most DISCOMs also ask for a brief reason — “installation of rooftop solar under PM Suryaghar” is a fully acceptable reason and accelerates approval in DISCOMs with a renewable energy desk.

Fees vary by state and the kW jump requested. The application fee itself is small — typically ₹100 to ₹500. The bigger component is the security deposit, calculated per additional kW. The deposit is refundable on disconnection but appears as an upfront charge on the revised bill.

State / DISCOMApplication feeSecurity deposit per kWModeTypical timeline
Maharashtra — MSEDCL₹100₹100Online app15–20 days
Maharashtra — Adani / Tata Mumbai₹250₹150Online portal12–18 days
Rajasthan — JVVNL, AVVNL, JdVVNL₹150₹100Online / SDO visit15–25 days
Gujarat — MGVCL, UGVCL, DGVCL, PGVCL₹200₹130SDO visit (mandatory)20–25 days
Karnataka — BESCOM₹300₹200Online + combined Suryaghar12–18 days
Karnataka — MESCOM, HESCOM, GESCOM, CESC₹250₹150Online / SDO18–22 days
Delhi — BSES Rajdhani, Yamuna, TPDDL₹500₹200Online portal15–20 days
Uttar Pradesh — UPPCL₹100₹50Online (Jhatpat portal)20–25 days

Source: state DISCOM tariff schedules and consumer charters, FY 2024–25; check the Forum of Regulators for the latest amendments. Add electricity duty and any service-level surcharge separately. For a 1 kW enhancement (2 → 3 kW) in Maharashtra, expect a total outlay of around ₹200; in Delhi, around ₹700; in Gujarat, around ₹330 plus a half-day SDO visit.

The enhancement workflow itself has four stages: application submission, document verification (1–3 days), site visit and DT loading check by the DISCOM section officer (5–10 days), and final approval with revised sanctioned load reflected on the next bill cycle (which can take up to one full billing month). The site visit is the swing factor — DISCOM staff sometimes need to physically check the meter and the local DT loading before approving.

Want both filed in parallel? Heaven Green files your load enhancement on day one and prepares your PM Suryaghar application on day three so the Suryaghar submission goes in the moment your enhanced bill is ready. Net delay compared to a no-enhancement application: 12 days. Talk to our team →

Once the enhancement is approved, wait for the next bill to be generated showing the new sanctioned load — this is the trigger document for the Suryaghar portal. Without the updated figure in the DISCOM database, the portal still shows the old sanctioned load and you cannot apply for the larger system. Our Suryaghar document checklist PDF covers what to gather for the parallel Suryaghar application.

What If Your DT Cannot Handle the Load Upgrade

Roughly 12% of load enhancement applications we file run into a DT capacity constraint — the local Distribution Transformer is loaded above 90% of its rated KVA, and the DISCOM cannot approve a fresh load addition without engineering action. This is more common in dense urban localities (older parts of Pune, central Bengaluru, west Delhi) and in colonies built before the latest network upgrade cycle. The DT capacity check is a hard engineering constraint, not a policy preference, so a “no” here cannot be argued — it has to be solved.

There are three possible outcomes when the DT capacity check returns a red flag. Outcome 1 is conditional approval with export restriction — the DISCOM allows the enhancement but requires your inverter to be programmed with a zero-export or limited-export setting, which means surplus solar units cannot be sold back to the grid. Outcome 2 is denial pending DT upgrade — the DISCOM refuses the enhancement until the local DT is upgraded to a higher KVA rating. Outcome 3 is denial pending feeder rebalancing — the DISCOM moves your connection to a different DT with spare capacity, usually within the same neighbourhood, before approving.

DT loading after your upgradeDISCOM responseWhat it means for your project
Below 70%Approved without conditionsFull enhancement, full net metering, no restrictions
70–85%Approved standardEnhancement granted; monitor for future feeder upgrades
85–90%Approved with monitoringApproved; DISCOM may revisit in 12 months if loading rises
90–95%Conditional approvalLikely export cap on inverter; self-consumption only
95–100%Denial — DT upgrade requiredDISCOM survey for new DT; cost-sharing or grant funded
Above 100%Denial — feeder rebalancingConnection move to adjacent DT with capacity

When you hit Outcome 1 (conditional approval), the financial impact is smaller than it sounds. Most residential customers consume 70–85% of their generation during the day anyway — washing machines, refrigerators, fans, water pumps, and rooftop AC use during peak sun hours mean export is only a fraction of the value. The ₹78,000 subsidy still applies, the rooftop array still generates at full capacity, and only the small annual export credit is forfeited.

Outcome 2 is more disruptive. A DT upgrade is a 4–8 week DISCOM capital project — the network planning cell schedules the replacement, procures the higher-KVA unit, and coordinates the swap on a planned outage day. In some states the consumer is asked to contribute a partial cost (typically ₹15,000–₹40,000 for a residential DT upgrade), in others it is fully DISCOM-funded under the Revamped Distribution Sector Scheme. Ask explicitly whether your DT falls under RDSS — if yes, the upgrade is free and time-bounded under the scheme’s KPIs.

Outcome 3 is the cleanest fix when available. The DISCOM moves your service from the overloaded DT to a nearby one with headroom. This usually takes 2–3 weeks and a single planned outage. Your meter, billing relationship, and consumer number all stay the same — only the upstream connection point changes.

For customers whose DT cannot be upgraded in their target timeline, our recommendation is to install at the current sanctioned load now, lock in the ₹60,000 subsidy for the 2 kW band, and queue the enhancement and the additional 1 kW as a phase-two project the moment the DT is rebuilt. This is the phased-approach path from Decision 2 of the framework. Detailed sizing guidance for sub-3 kW homes is in our home solar system size guide.

If the DT issue blocks the project and you suspect the DISCOM has miscategorised your loading, you have the right to request a formal loading audit. The audit is free for residential consumers under most state Electricity Regulatory Commission guidelines, and the audit report becomes the basis for either a corrected approval or a documented denial that can be escalated to the regulator. Keep all DISCOM correspondence in writing.

Common Mistakes That Stall the Enhancement

Six recurring mistakes account for most of the delays we see in load enhancement applications across states. Each one is preventable with a 5-minute pre-check.

  1. 1
    Filing the Suryaghar application before the enhancement is approved. The portal blocks the submission and your application is closed. File enhancement first, wait for the revised bill, then submit Suryaghar.
  2. 2
    Reading KVA as kW. A 3 KVA sanctioned load is approximately 2.7 kW at 0.9 power factor — not 3 kW. Confirm units before assuming you have headroom.
  3. 3
    Asking for a kW jump that triggers a phase change. Moving from 5 kW to 7 kW often forces a single-phase to three-phase upgrade, adding ₹8,000–₹15,000 in meter and wiring costs.
  4. 4
    Skipping the DT capacity question. Submitting an enhancement without first checking DT loading wastes 15 days if it comes back as a denial. Ask the section officer first.
  5. 5
    Missing the bill cycle. Even after approval, the new sanctioned load only appears on the next billing cycle's bill. Submitting Suryaghar before that bill prints results in a portal rejection.
  6. 6
    Name mismatch between bill and Aadhaar at enhancement time. DISCOM enhancement uses the same identity check as Suryaghar. Fix any mismatch first — see our rejection reasons guide.

A seventh, subtler mistake: customers who self-file the enhancement and then run into a portal error during the Suryaghar submission often don’t realise the two systems are not synced in real time. The Suryaghar portal refreshes DISCOM data on a daily batch in most states. Even with an approved enhancement and a revised bill, the portal may still show the old sanctioned load for up to 48 hours. If you hit this, raise a query on the portal with your revised bill attached — see our PM Suryaghar portal error fix guide for the exact escalation path.

⚠️ Watch out

Some installers will tell you the sanctioned load doesn't matter because "we can adjust on paper". This is fraudulent — DISCOM inspection at commissioning will compare installed capacity against sanctioned load and reject the entire net metering application. The ₹78,000 subsidy depends on commissioning approval. Never sign a contract that promises a system size above your verified sanctioned load.

Decision: Enhance Load or Cap Solar at Current Capacity

For most residential customers facing the sanctioned load mismatch, this is the decision the entire project pivots on. Below is the side-by-side trade-off, framed against the specific 2 kW vs 3 kW case which is the most common scenario we see across all four DISCOM regions we cover.

Enhance load to 3 kW
  • Pro Captures full ₹78,000 subsidy band
  • Pro Extra ~1,650 kWh/year of generation
  • Pro Lifetime savings uplift ₹2.8 lakh+
  • Pro Headroom for AC / EV in future
  • Con Adds 15–25 day pre-step
  • Con ₹150–₹1,100 enhancement fees
  • Con DT loading risk (12% denial rate)
Cap solar at current 2 kW
  • Pro Skip 15–25 day enhancement
  • Pro No DT capacity risk
  • Pro Lower upfront capex (₹1.2–1.35 lakh)
  • Pro Fits smaller roofs / shaded areas
  • Con Loses ₹18,000 subsidy headroom
  • Con Lower lifetime savings
  • Con Hard to add 1 kW later (no subsidy)

The economics make the enhancement worthwhile in almost every scenario where the household consumes above 250 kWh per month and has roof space for a 3 kW array (about 18–20 m² unshaded). The ₹18,000 extra subsidy alone is a 10x return on the enhancement fee, and the additional 1 kW of generation is worth roughly ₹11,500 per year at upper-slab tariffs. Over a 25-year system life, the cumulative case in favour of enhancement is well over ₹2.8 lakh in net present value terms.

Verdict. For 80% of residential customers facing a sanctioned load mismatch, file the load enhancement first and then submit the PM Suryaghar application at the higher capacity. The 15–25 day pre-step is a small price for the ₹18,000 subsidy uplift and the long-term generation gain. Cap the system at current load only when the DT cannot be upgraded, when consumption stays under 250 kWh per month, or when roof area limits the system to 2 kW anyway. The full 3 kW PM Suryaghar route remains the best subsidy-to-effort ratio in the scheme.

For a calculator that runs your specific numbers — bill amount, roof area, sanctioned load, expected savings — use the Heaven Green solar calculator. It outputs the enhance-vs-cap decision recommendation alongside the cost and payback figures.

How Heaven Green Energy Helps with Load Enhancement

Heaven Green Energy is MNRE-empanelled across Rajasthan, Maharashtra, Gujarat, and Karnataka and has handled hundreds of PM Suryaghar applications where the sanctioned load required an upfront enhancement. We treat the enhancement as part of the Suryaghar workflow — not a separate consumer task you have to chase the DISCOM for.

Our load enhancement service runs in five steps. First, we audit your latest bill within 24 hours of you signing up — verifying sanctioned load (in kW, after KVA conversion if needed), tariff category, phase, and bill name consistency with Aadhaar. Second, we file the enhancement application with the relevant DISCOM the same day, online where supported and in person where required (Gujarat, parts of UP). Third, we accompany the DISCOM section officer for the site visit and DT loading check, which usually happens within 5–10 days of the application. Fourth, we monitor the DISCOM internal queue daily and escalate any delay through the renewable energy desk. Fifth, the moment the revised bill is generated with the new sanctioned load, we submit the PM Suryaghar application at the higher capacity.

The net result is a parallel-tracked project that compresses what could be a 45-day sequence into a 75-day end-to-end timeline — only 12 days longer than a no-enhancement Suryaghar project. We’ve delivered this on hundreds of installations across our service territories, and the success rate on enhancements (excluding DT-capacity hard blocks) is above 96%.

Explore the services that match your project:

For step-by-step state DISCOM processes, see our PM Suryaghar JVVNL process for Rajasthan or contact our team for Maharashtra, Gujarat, and Karnataka workflows.

Frequently Asked Questions

Can I install a 3 kW solar system under PM Suryaghar if my sanctioned load is only 2 kW?

No — the PM Suryaghar portal enforces the rule that solar capacity in kW cannot exceed sanctioned load on the bill. With a 2 kW sanctioned load, the portal will only allow you to apply for a system up to 2 kW, which caps your central subsidy at ₹60,000 instead of the full ₹78,000. To install 3 kW and claim the maximum subsidy, you must first file a load enhancement application with your DISCOM, wait 15–25 days for approval, and then submit the Suryaghar application against the revised sanctioned load printed on your updated bill.

How long does a load enhancement application take in 2026?

Most DISCOMs process residential load enhancement applications in 15–25 days from submission to revised bill generation. The fastest are Maharashtra MSEDCL (15–20 days online), Karnataka BESCOM (12–18 days, especially as a combined Suryaghar request), and the Mumbai distribution licensees. Gujarat DISCOMs and Uttar Pradesh UPPCL run slower at 20–25 days because they require a physical SDO visit and have larger application backlogs. The DT capacity check by the section officer is typically the longest single step.

What does a load enhancement application cost?

Costs are modest. The application fee ranges from ₹100 in Maharashtra and Uttar Pradesh to ₹500 in Delhi BSES. A refundable security deposit applies per additional kW — ₹50 per kW in UPPCL territory at the low end, ₹200 per kW in Delhi and BESCOM at the high end. For a 1 kW enhancement from 2 kW to 3 kW, expect total upfront outlay of ₹150 to ₹700 depending on state. The deposit is refunded if you ever disconnect the service.

What is a Distribution Transformer (DT) and why does its capacity matter for solar?

A Distribution Transformer is the pole-mounted or pad-mounted electrical unit that steps high-voltage feeder current down to the 230 V single-phase or 415 V three-phase supply that reaches your home. Every consumer on a DT contributes to its loading. When you install rooftop solar, the system can push surplus power back through the DT, and if the DT is already heavily loaded, the additional capacity creates voltage rise and safety issues for other consumers on the same feeder. DISCOMs check DT loading before approving any load enhancement; loading above 90% can trigger conditional approval, export restriction, or outright denial pending a DT upgrade.

Can I file the load enhancement and PM Suryaghar application at the same time?

Karnataka BESCOM allows a combined enhancement-and-Suryaghar request — file once, get both processed in parallel. In other states the two applications are sequential — DISCOM enhancement must be approved and reflected on a revised bill before the Suryaghar portal will accept the higher system size. Practically, Heaven Green files the enhancement on day one and prepares the Suryaghar application documents in parallel so submission happens the same day the revised bill is issued. Total parallel-tracked timeline: 75 days from sign-up to subsidy disbursement.

What happens if my DT does not have capacity for the load upgrade?

The DISCOM has three possible responses. First, conditional approval — they grant the enhancement but require your inverter to be programmed with a zero-export or limited-export setting, so surplus solar units stay onsite rather than feeding the grid. Second, denial pending DT upgrade — the DISCOM schedules a transformer replacement, typically 4–8 weeks, possibly with a partial consumer cost contribution of ₹15,000–₹40,000. Third, feeder rebalancing — they move your service to an adjacent DT with spare capacity, usually within 2–3 weeks and one planned outage. None of these eliminate the project; they only adjust the path and timeline.

Is sanctioned load the same as connected load on my electricity bill?

No — they are different. Sanctioned load is the formally approved maximum capacity the DISCOM has authorised your service for. Connected load is the sum of the wattage of all appliances you have wired in, which can be higher or lower than sanctioned. For PM Suryaghar, only sanctioned load matters. If your bill only shows connected load, call the DISCOM helpline and request the sanctioned figure in writing; you cannot use connected load as a substitute on the Suryaghar portal.

What if my bill shows sanctioned load in KVA instead of kW?

Convert using a 0.9 power factor as an approximation — 1 KVA equals roughly 0.9 kW for residential connections. So 3 KVA sanctioned load is approximately 2.7 kW, which is below the 3 kW threshold for the maximum ₹78,000 subsidy. To install a 3 kW system you would need to enhance to at least 3.4 KVA, which rounds up to 3.5 KVA in DISCOM tariff slabs. Some DISCOMs are now standardising on kW for residential billing, but Tamil Nadu, Andhra Pradesh, and parts of Gujarat still use KVA.

Will my electricity bill increase after the load enhancement even before installing solar?

Yes, slightly. Most DISCOMs charge a small monthly fixed charge per kW of sanctioned load — typically ₹40–₹90 per kW per month in 2026. Enhancing from 2 kW to 3 kW therefore adds ₹40–₹90 to your monthly bill before solar comes online. Once the rooftop system is commissioned, the savings from solar generation outweigh the higher fixed charge by 30–50x in most residential cases, but the small bump is real and worth budgeting for during the gap between enhancement approval and solar commissioning.

Can I reverse the load enhancement if I change my mind about solar later?

Yes, but it requires another DISCOM application — a load reduction request. Reduction is faster and cheaper than enhancement (typically 7–15 days, smaller fees) because no DT capacity check is needed. The security deposit paid for the additional kW is refunded on reduction. That said, almost no customer reduces sanctioned load after enhancement — the extra capacity is useful for future appliances and AC additions even if the solar plan changes.

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