What solar models does Sun Wave offer?

We offer three flexible models: EPC (Engineering, Procurement & Construction) where you own the system outright for maximum long-term savings; RESCO/OPEX where our partners install at zero cost and you buy cheaper electricity; and Open Access where we help you procure off-site solar power through leading providers. We recommend the best model based on your business needs.

What is EPC and why should I choose it?

EPC stands for Engineering, Procurement & Construction. Under this model, Sun Wave handles the complete solar project — from system design and equipment procurement to professional installation and commissioning. You own the system from Day 1, benefit from accelerated depreciation, government subsidies, and achieve a typical payback period of 3-5 years with 25+ years of free electricity thereafter.

How does the RESCO/OPEX model work?

Under RESCO (Renewable Energy Service Company), our trusted partners install, own, and maintain a solar system on your rooftop at zero cost to you. You simply purchase the electricity generated at a rate 20-30% lower than your grid tariff. After the contract period (typically 10-15 years), the system is transferred to you for free. It's a pure OpEx model with immediate savings.

What is Open Access solar and who is it for?

Open Access allows large industrial consumers to procure solar power from off-site solar plants through the grid. It's ideal for businesses with high energy consumption but limited rooftop space. We work with leading open access providers to negotiate the best rates and handle all regulatory compliance. Typically suited for loads above 100 KW.

Which industries do you serve?

We primarily serve industrial and commercial clients — steel manufacturers, auto component factories, alloy plants, plastic manufacturers, textile units, warehouses, and corporate offices. Our expertise is in designing systems for energy-intensive operations where solar delivers the highest impact and ROI.

What equipment brands do you use?

We exclusively use Tier-1 equipment from trusted brands including Sungrow and Solis for inverters, and Gautam Solar, Waree, and Sattvik for solar panels. All equipment comes with manufacturer warranties — 25 years for panels and 5-10 years for inverters — ensuring decades of reliable performance.

What regions do you currently serve?

We are headquartered in Faridabad and currently operate across Delhi-NCR including Faridabad, Gurugram, Noida, and Delhi. We are actively expanding into Rajasthan, Uttar Pradesh, West Bengal, and other states. Contact us to check availability in your area.

How long does a typical installation take?

A typical industrial/commercial installation takes 4-8 weeks from site survey to commissioning, depending on system size and site conditions. We handle all approvals, DISCOM paperwork, and net metering applications — you don't have to worry about anything.

Do you handle all approvals and documentation?

Yes, absolutely. We manage the entire documentation process end-to-end — structural assessment, DISCOM approvals, net metering application, government subsidy applications, and all regulatory compliance. Our team has deep experience navigating the approval process across multiple states.

What happens after installation? Do you provide support?

Yes. Every installation comes with 24/7 remote monitoring, preventive maintenance schedules, and rapid fault resolution. We provide detailed performance reports and ensure your system operates at peak efficiency throughout its lifetime. We're your long-term energy partner.

ALMM Mandate 2026: India Solar Cells Must Be Made in India

TL;DR — ALMM Mandate 2026

Effective June 1, 2026, India's MNRE has extended the ALMM (Approved List of Models and Manufacturers) framework to mandate that all eligible solar projects use modules built with domestically manufactured solar cells — not just modules.
The change closes the previous loophole where Indian module assemblers could use imported cells. From June 2026, both module and cell must be Indian-made for the project to qualify for ALMM-eligible incentives.
A further ALMM extension announced in March 2026 will bring solar ingots and wafers into the ALMM framework with mandatory compliance for new bids taking effect from June 1, 2028.
For industrial buyers planning C&I solar India projects after June 2026, your solar EPC company in India must source modules from manufacturers with vertically integrated India cell lines: Waaree, Adani Solar, Vikram Solar, Premier Energies, ReNew, Tata Power Solar, Goldi Solar.
Expect a 3–6% near-term cost increase on ALMM-compliant modules in 2026 as cell-manufacturing capacity scales — typically passed through to EPC pricing as ₹1.0–1.5 per Wp.
In a parallel April 2026 development, MNRE approved heterojunction (HJT) solar cells for ALMM listing for the first time, with Reliance Industries as the inaugural HJT manufacturer.

What Changed: ALMM Mandate 2026 Explained

The Approved List of Models and Manufacturers (ALMM) is MNRE's mandatory eligibility list for solar modules used in grid-connected projects, government-backed schemes, net metering in most states, and accelerated depreciation eligibility. Until 2026, ALMM applied only to the module (the assembled glass-cell-frame product). Many Indian module manufacturers were importing finished cells from Southeast Asia and assembling them domestically — technically Indian-made modules, but still dependent on foreign cell supply chains.

The ALMM Mandate 2026 changes this. Starting June 1, 2026, MNRE requires that for a module to retain ALMM listing for new project bids, the underlying solar cells must also be manufactured in India. Module manufacturers who continue to use imported cells will see their products lose ALMM status for new tenders and incentive-eligible projects.

This is the third leg of India's solar manufacturing localization push, after:

Basic Customs Duty (BCD) of 40% on modules and 25% on cells introduced in April 2022
Production Linked Incentive (PLI) Scheme for high-efficiency module manufacturing (₹24,000 Cr Tranche II finalized 2023)
ALMM Mandate 2026 — closing the cell-import loophole

Timeline of ALMM Expansions

Effective Date	ALMM Scope Change
March 2019	Initial ALMM listing mandate for solar modules in government projects
April 2022	BCD 40% on imported modules / 25% on cells
April 2024	ALMM enforcement temporarily lifted, then reinstated
April 2025	ALMM I (modules) extended to all government-supported and incentive-linked projects
June 1, 2026	ALMM Mandate 2026 — solar cells must be domestically manufactured
April 2026	Heterojunction cell tech approved for ALMM listing (Reliance first manufacturer)
June 1, 2028	ALMM extension to ingots and wafers

What ALMM Mandate 2026 Means for Industrial Buyers

If you are an industrial or commercial buyer planning a solar project in 2026 or beyond, the ALMM Mandate 2026 has three direct implications for your procurement strategy.

Implication 1: Verify Cell Origin, Not Just Module Origin

Until 2026, asking your solar provider in India "are these ALMM-listed modules?" was sufficient. From June 2026, you must ask:

Is the module ALMM-listed under the post-June 2026 framework?
Are the cells inside the module also Indian-made?
Can the manufacturer provide cell-level traceability documentation?
Does the cell manufacturing line have BIS / NABL / IECRE certification?

A reputable solar EPC company in India will provide cell-level invoices, BOQ traceability, and ALMM Mandate 2026 compliance certificates as standard documentation.

Implication 2: Module Pricing Will Adjust by 3–6%

India's domestic cell manufacturing capacity has grown rapidly — from less than 5 GW in early 2024 to roughly 20–25 GW operational by Q2 2026 with 40+ GW in pipeline. However, near-term, cell capacity remains tight relative to module capacity. The result:

Imported cells (China) wholesale at roughly ₹4.5–5.5 per Wc (cell-watt) in early 2026
Indian-made cells from Waaree, Premier, ReNew, Adani are pricing ₹5.0–6.5 per Wc — a 10–20% premium
Module pricing impact: ~₹1.0–1.5 per Wp, or ~3–6% on a ₹35–40 per Wp finished module

For a 1 MW industrial rooftop CAPEX project at ₹3.5–4.0 Cr, this translates to a ₹10–15 lakh increase. Buyers with projects scheduled for commissioning after June 2026 should incorporate this into their cost estimates. See our solar EPC cost per MW guide for full pricing benchmarks.

Implication 3: Manufacturer Concentration Increases

Indian solar cell manufacturing is concentrated among 8–10 vertically integrated players:

Manufacturer	Cell Manufacturing Capacity (mid-2026)	Module Capacity
Waaree Energies	7 GW	12 GW
Adani Solar (Mundra)	4 GW	10 GW
ReNew Photovoltaics	4 GW	6.4 GW
Premier Energies	3 GW	4 GW
Vikram Solar	2 GW	4.5 GW
Goldi Solar	1.5 GW	5 GW
Tata Power Solar	1 GW	4.3 GW
Reliance (HJT)	0.5 GW (ramping)	1 GW (ramping)

Industrial buyers planning C&I solar India projects above 1 MW should restrict module sourcing to this list of integrated manufacturers to ensure ALMM Mandate 2026 compliance and supply security.

Heterojunction (HJT) Approval — A Parallel Win

In a complementary April 2026 announcement, MNRE granted ALMM listing to heterojunction (HJT) solar cell technology for the first time. Reliance Industries became the inaugural HJT manufacturer on the ALMM list.

What Is Heterojunction?

Heterojunction (HJT) solar cells combine crystalline silicon with thin layers of amorphous silicon, achieving:

Higher efficiency: 22.5–24.0% commercial cell efficiency vs 21.0–22.5% for mainstream TOPCon
Better temperature coefficient: -0.24 to -0.26%/°C vs -0.30 to -0.35%/°C for PERC/TOPCon
Bifaciality up to 95%: vs 70–85% for PERC/TOPCon — useful for ground-mount with reflective surfaces
Lower degradation: 1st-year degradation of 1% vs 2–2.5% for PERC

For Indian industrial buyers in hot conditions (40+ °C ambient is common in Rajasthan, Gujarat, central India), the temperature coefficient advantage translates to 2–4% higher annual generation than equivalent-rated PERC/TOPCon modules.

When Should Industrial Buyers Use HJT?

HJT modules in 2026 carry a 12–18% price premium over mainstream TOPCon modules. For most industrial rooftop projects, mainstream TOPCon from Waaree, Adani, or Vikram remains the better cost-performance choice. Consider HJT for:

Ground-mount projects with bifacial gain potential (open access farms, reflective surfaces)
Hot-climate projects where temperature coefficient gain meaningfully changes IRR
Premium architectural projects where higher Wp/sqm matters
Projects targeting 25+ year lifecycle with low LCOE

For a typical urban factory rooftop in Delhi-NCR or Haryana, mainstream TOPCon remains the optimal choice. Read our Waaree vs Trina solar panels comparison for module brand-by-brand evaluation.

What This Means for RESCO and Open Access Buyers

The ALMM Mandate 2026 affects all commercial models:

CAPEX Buyers

CAPEX C&I solar India buyers absorb the 3–6% module cost increase directly. The savings impact is small — at ₹3.8 Cr per MW (post-mandate) vs ₹3.6 Cr per MW (pre-mandate), a 1 MW plant's payback period extends from ~2.9 years to ~3.0 years. Still highly attractive. Read solar EPC cost per MW guide.

RESCO/OPEX Buyers

RESCO/OPEX developers will price the cost increase into PPA tariffs. Expect post-June 2026 RESCO PPAs to land 0.10–0.20 ₹/kWh higher than pre-mandate quotes — still 30–45% below grid tariffs.

Open Access Buyers

Open Access solar farms commissioned after June 2026 must source ALMM Mandate 2026-compliant modules. Expected impact on landed open access tariff: 0.10–0.15 ₹/kWh. Pricing remains highly competitive vs grid.

Group Captive Buyers

Group captive projects commissioned post-June 2026 will see similar 0.10–0.20 ₹/kWh tariff impact. Equity structures and 26% ownership requirements remain unchanged.

How to Future-Proof Your 2026 Solar Procurement

If you are evaluating commercial & industrial solar India projects for commissioning in 2026 or 2027, follow these steps:

Step 1: Confirm Cell Origin in Every Quote

Demand from every prospective solar provider in India:

Module manufacturer name and ALMM Mandate 2026 compliance certificate
Cell manufacturer name (often the same vertically integrated company)
Cell-level batch traceability documentation
Bill of materials with cell origin disclosure

Step 2: Lock Pricing Before June 2026 If Possible

Projects with module ordering completed before June 1, 2026 may benefit from pre-mandate pricing on Q1/Q2 cell inventory. However, pricing benefits from this window are modest (3–6%) and chasing them often introduces execution risk. Most well-managed C&I solar India projects should plan around post-mandate pricing.

Step 3: Prefer Vertically Integrated Manufacturers

Choose modules from manufacturers operating both cell and module lines (Waaree, Adani, Vikram, Premier, ReNew, Goldi, Tata Power Solar). These manufacturers face the lowest supply chain disruption risk during the 2026 mandate transition.

Step 4: Build 2026/2027 Cost Buffers

For C&I solar India projects budgeted in late 2025 or early 2026 but commissioning post-June 2026, add a 5–7% module cost buffer to the base price. Avoid locking 25-year RESCO PPAs at pre-mandate tariffs for plants that will physically commission post-June 2026.

Step 5: Plan Ahead for the 2028 Wafer/Ingot Mandate

The June 2028 ALMM extension to ingots and wafers will further consolidate Indian solar manufacturing. Long-tenor 25-year PPAs signed with RESCO operators in 2026/2027 should include language addressing potential 2028 cost adjustments — typically a one-time tariff escalator capped at 3–5% if the wafer mandate causes module cost increases above a threshold.

Sun Wave Technologies' ALMM Mandate 2026 Compliance

Sun Wave Technologies, as a focused industrial solar provider in India, has already aligned procurement to the ALMM Mandate 2026:

All module sourcing post-Q2 2026 from Waaree, Adani, Vikram, Premier, ReNew, Goldi, or Tata Power Solar — vertically integrated India cell manufacturers
Cell-level traceability documentation included in every BOQ
ALMM Mandate 2026 compliance certificate provided as standard with delivery
HJT (Reliance) modules quoted on request for hot-climate and premium projects
Pre-emptive client communication on the 2028 wafer/ingot mandate impact for long-tenor PPA structures

For industrial buyers planning C&I solar India projects in Delhi-NCR, Haryana, Rajasthan, UP, or Gujarat, Sun Wave Technologies handles all ALMM Mandate 2026 documentation and traceability as part of standard EPC scope.

Frequently Asked Questions

What is the ALMM Mandate 2026?

The ALMM Mandate 2026 is India's MNRE rule, effective June 1, 2026, requiring that all eligible solar projects use solar modules built with domestically manufactured solar cells. Previously the ALMM (Approved List of Models and Manufacturers) framework applied only to module assembly — Indian module makers could use imported cells. ALMM Mandate 2026 closes this loophole, requiring both module and cell to be Indian-made for the module to qualify for net metering, accelerated depreciation, and government scheme eligibility.

Will my existing solar plant be affected by the ALMM Mandate 2026?

No. The ALMM Mandate 2026 applies only to new projects bid or commissioned after June 1, 2026. Existing solar plants commissioned before June 2026 retain their ALMM status under the framework in force at the time of commissioning. Net metering, accelerated depreciation, and warranty claims for existing plants are unaffected.

How much will industrial solar costs increase due to ALMM Mandate 2026?

Industrial solar EPC costs in India are expected to increase by 3–6% due to ALMM Mandate 2026, primarily reflecting the 10–20% premium on Indian-made cells vs imported cells. For a 1 MW industrial rooftop CAPEX project, this translates to a ₹10–15 lakh increase from a baseline of ₹3.5–4.0 Cr per MW. Payback period extends marginally from ~2.9 to ~3.0 years — still highly attractive vs grid tariffs.

Which Indian manufacturers are ALMM Mandate 2026 compliant?

The vertically integrated solar manufacturers who are ALMM Mandate 2026 compliant in 2026 include Waaree Energies (7 GW cell capacity), Adani Solar Mundra (4 GW), ReNew Photovoltaics (4 GW), Premier Energies (3 GW), Vikram Solar (2 GW), Goldi Solar (1.5 GW), Tata Power Solar (1 GW), and Reliance Industries (0.5 GW HJT, ramping). These manufacturers operate both cell and module lines and provide cell-level traceability documentation required for post-June 2026 ALMM compliance.

What is heterojunction (HJT) solar and is it relevant for industrial buyers?

Heterojunction (HJT) solar cells combine crystalline silicon with amorphous silicon thin films, achieving 22.5–24% efficiency, lower temperature coefficient (-0.24%/°C vs -0.30%/°C for PERC/TOPCon), and up to 95% bifaciality. MNRE approved HJT for ALMM listing in April 2026 with Reliance as the first manufacturer. HJT modules carry a 12–18% price premium and are most relevant for hot-climate ground-mount projects, premium architectural installations, and applications where the temperature coefficient advantage materially improves IRR. For typical industrial rooftops, mainstream TOPCon remains the better cost-performance choice in 2026.

When does ALMM extend to wafers and ingots?

The ALMM extension to wafers and ingots, announced by MNRE in March 2026, takes mandatory effect for new project bids on June 1, 2028. From that date, the wafers and ingots used to make the solar cells must also be Indian-made. This will affect long-tenor PPAs and large utility procurement from 2028 onwards. Industrial CAPEX buyers should incorporate a 3–5% one-time cost adjustment clause in 25-year RESCO contracts spanning the 2028 transition.

Should I delay my 2026 industrial solar project until ALMM Mandate 2026 is fully implemented?

No. Delaying a 2026 industrial solar project is rarely beneficial. Each year of delay means another year of grid tariffs at ₹8–10/kWh — typically ₹12–15 lakh per MW per year of foregone savings. The 3–6% module cost increase from ALMM Mandate 2026 is far smaller than the cost of waiting. A reputable solar EPC company in India can navigate the mandate transition while keeping your project on schedule.

What documentation should I demand to verify ALMM Mandate 2026 compliance?

For any commercial & industrial solar India project commissioning after June 1, 2026, demand: (1) Module ALMM certificate citing post-June 2026 framework, (2) Cell manufacturer name and origin certificate, (3) Cell batch-level traceability documentation, (4) BIS / IECRE / NABL test reports for the cell line, (5) Bill of materials with cell origin disclosed line-by-line, (6) Manufacturer affidavit confirming Indian cell sourcing. A reputable solar provider in India provides all six as standard delivery documentation.