Site and load feasibility
Bill review, interval-load analysis, shadow survey, usable-area measurement, structural review and interconnection constraints.
CAPEX-owned solar
Own the plant. Verify every assumption.
Under the CAPEX model, your business owns the solar asset and appoints an EPC contractor to design, procure, install, test and commission it. The investment case must be built from your actual bills, daytime load, usable area, structural condition, applicable approvals and current equipment offers—not a generic per-megawatt promise.
Discuss your siteOwnership
Buyer-owned
The solar plant is capitalised by the business and operated for its benefit.
Best starting data
12 months
Bills plus interval load and site records are needed for defensible sizing.
Core deliverable
Turnkey EPC
Engineering, procurement, installation, testing, commissioning and handover.
Commercial result
Site-specific
Cost, savings, tax treatment and payback depend on the project and buyer.
When CAPEX ownership is the right fit
The right structure depends on the facility's bills, interval load, roof or land, connection agreement, operating schedule, credit profile and current state rules. Sun Wave validates those inputs before presenting savings or generation estimates.
The business has stable daytime consumption and intends to remain at the facility for the asset life.
Management prefers asset ownership and can fund the project through equity, debt or a combination.
The buyer can use depreciation subject to its tax position and professional advice.
The roof or land, electrical system and interconnection route are technically suitable.
The organisation wants direct control over equipment, operating policy, future repowering and O&M procurement.
What a bankable EPC scope should contain
Issued-for-construction design
Layout, SLD, protection, cable sizing, earthing, lightning protection, structure calculations, energy-yield assumptions and equipment schedules.
Traceable procurement
Approved makes, model numbers, ALMM evidence where applicable, batch records, warranties, inspection documentation and substitution controls.
Approvals and coordination
Project-specific DISCOM, Electrical Inspector, net-metering or captive requirements, with responsibilities and dependencies stated in the programme.
Testing and acceptance
FAT/SAT evidence, insulation and earthing tests, protection checks, meter coordination, generation baseline and documented handover.
Performance and defects
Clear energy or PR methodology, availability assumptions, defect liability, liquidated damages, warranty pass-through and post-commissioning support.
From evidence to commissioning
01
Establish the baseline
Collect bills, sanctioned load, interval data, roof drawings, outage history and planned load changes. Separate measured facts from assumptions.
02
Complete technical feasibility
Confirm structural capacity, usable area, transformer and protection limits, cable route, shutdown needs and the applicable metering route.
03
Issue a comparable technical specification
Define minimum equipment, design, safety, documentation, guarantees and exclusions before comparing prices.
04
Execute with hold points
Use design approvals, material inspections, installation checks and change-control records so deviations are visible before commissioning.
05
Test, document and operate
Complete acceptance testing, as-built drawings, warranty files, training, monitoring access and an O&M plan before final handover.
What Sun Wave will not assume without evidence
Figures shown in proposals should be project-specific and traceable to current bills, engineering outputs, equipment offers and controlling regulations. We do not publish guaranteed savings or tariffs without a defined site and contract.
A universal ₹/MW cost or payback period across different roofs and connection types.
Automatic eligibility for net metering, open access, subsidies or input-tax credit.
A guaranteed generation figure before site, design and weather assumptions are agreed.
A depreciation benefit without the buyer's tax adviser confirming ownership, use and tax regime.
A module or cell compliance status without current manufacturer and project documentation.
Primary references
Frequently asked questions
What is CAPEX solar?+
CAPEX solar is a buyer-owned project. The business pays for and owns the plant, while an EPC contractor delivers the agreed engineering, procurement, construction, testing and commissioning scope.
How much does a commercial solar plant cost?+
There is no responsible universal price. Capacity, roof type, structure strengthening, voltage level, equipment specification, logistics, approvals, financing and storage requirements materially change the delivered cost.
How should a factory size rooftop solar?+
Use daytime interval load, seasonal consumption, sanctioned load, export treatment, usable roof area and future expansion. Monthly units alone are not enough for final sizing.
Can a business claim accelerated depreciation?+
A buyer-owned system may qualify under applicable income-tax rules, but the benefit depends on ownership, business use, commissioning date and tax regime. The buyer's tax adviser should confirm the treatment.
What should be guaranteed in the EPC contract?+
Define equipment, usable capacity, testing, energy or PR methodology, availability, completion milestones, defects, warranty pass-through, documentation and consequences for shortfall. Avoid guarantees without a measurement method.
Build the decision from your real site data
Share the latest bills, load profile and site details. Sun Wave will identify the feasible structure, assumptions that need verification and the next engineering or commercial step.
Request a site assessment