How to Register a Solar Installation Company in India?

For a rooftop solar installer or solar EPC contractor, compare co-founder roles, customer contracts and working-capital needs. LLP may suit partner operations; Pvt Ltd may suit company shares and outside equity plans.

Ownership questions for your solar installation company

Separate panel supply, electrical installation and maintenance commitments. Identify who carries equipment warranties and who responds if expected generation is not achieved.

Pvt Ltd, LLP, OPC, Proprietorship or Partnership?

• Pvt Ltd: compare for company shares, co-founders, outside equity investment and employee equity plans.
• LLP: compare for two or more owners operating as partners; agree contributions, work roles and profit sharing.
• OPC: assess for an eligible sole founder seeking a company structure; consider how future co-founders would join.
• Proprietorship: assess for one owner accepting personal business liability.
• Partnership: assess shared ownership while recognising partners' generally personal liability for firm obligations.

Limited liability has exceptions, and personal guarantees can create personal exposure. Compare the proposed contracts and financing before choosing.

Registrations and operating requirements

Check electrical and project requirements. Where operating under PM Surya Ghar, review the scheme's current vendor-registration process rather than assuming incorporation provides eligibility.

Check requirements for the actual activity and location before committing to premises, equipment or customer contracts. Incorporation and operating permission are separate.

Historical registration context: 1 April 2016 to 30 September 2026

No separate verified annual series for this specific business has been established from the MCA records analysed for this research. The table below reproduces the existing broader-sector series without changing its figures. Related activities may be classified elsewhere; these counts do not show active businesses, success rates or why founders chose a structure.

What the table covers: Construction: legacy division 45 and newer divisions 41–43. This is a construction-based view of infrastructure, not a total for all infrastructure businesses. Utilities, transport operators and real estate activities outside these codes are excluded.

Financial year	Private Limited	LLP	OPC	Total
FY 2016–17	5,305 (69.10%)	2,182 (28.42%)	190 (2.47%)	7,677
FY 2017–18	5,658 (69.12%)	2,288 (27.95%)	240 (2.93%)	8,186
FY 2018–19	6,889 (76.48%)	1,839 (20.42%)	279 (3.10%)	9,007
FY 2019–20	7,202 (69.31%)	2,836 (27.29%)	353 (3.40%)	10,391
FY 2020–21	9,030 (71.41%)	3,159 (24.98%)	457 (3.61%)	12,646
FY 2021–22 9 source months	7,421 (67.62%)	3,117 (28.40%)	436 (3.97%)	10,974
FY 2022–23	9,716 (70.69%)	3,517 (25.59%)	511 (3.72%)	13,744
FY 2023–24	10,580 (64.02%)	5,448 (32.97%)	498 (3.01%)	16,526
FY 2024–25	11,218 (62.04%)	6,338 (35.05%)	527 (2.91%)	18,083
FY 2025–26	15,579 (63.62%)	8,231 (33.61%)	679 (2.77%)	24,489
FY 2026–27 Apr–Sep 2026	8,206 (60.74%)	4,927 (36.47%)	378 (2.80%)	13,511

Coverage notes: Calculations use MCA monthly incorporation reporting periods from 1 April 2016 to 30 September 2026. FY 2021–22 is missing November 2021, January 2022 and March 2022. FY 2026–27 covers April–September 2026 only. Records without usable activity codes are excluded from sector allocation, including LLP records in October 2018 without activity codes. Code definitions changed over time; the stated legacy/newer scope is retained. No missing records are estimated. The sector table includes Private Limited, LLP and OPC only; Public/Other Companies, Foreign Companies, Proprietorships and ordinary Partnerships are excluded. Private Limited excludes OPC. These sector tables are not the Company-only state tables, which exclude LLPs.

Source: Our analysis of 126 distinct MCA monthly incorporation workbooks analysed for this research, reaggregated by financial year on 18 October 2026 and deduplicated by CIN/LLPIN. Activity definitions reference NIC 2004 and NIC 2008.

Read the broader-sector dataset and its stated coverage for the original sector scope and interpretation.

Documents, registration and annual costs

Prepare owner identity and address records, the proposed name and activities, office-use evidence, and an ownership agreement. Use the Documents Required for Company Registration in India: PVT LTD and OPC or LLP Registration in India: Process, Documents, Costs and Agreement for the entity you choose; Proprietorship and Partnership follow different routes.

Get a written annual estimate for accounts, tax returns, applicable audit and entity filings, plus the sector obligations identified above. Include work needed even when revenue is zero. Compare it with the compliance calendar and GST registration guidance before paying a registration fee.

A common founder question

Does becoming a company register me as a subsidised-rooftop solar vendor?

No. Scheme participation and relevant technical requirements must be checked separately.

Next steps

Compare Pvt Ltd, LLP and OPC, then use the current-account documents guide. Browse the business guide directory for related activities.

Official reference points: PM Surya Ghar vendor registration; Business approval guidance. Requirements checked 9 October 2026; applicability depends on the business and location.