The RESCO model solar framework lets you capture the full financial and environmental benefit of green energy while we carry all capital, technical, and performance risks for the entire contract term.
Not every corporate entity wants to deploy crores of capital on a power asset, even when savings are obvious. Capital is better deployed in core operations; managing a multi-decade power plant is simply not why most companies exist. To understand what is the RESCO model, it is helpful to look at how it solves this friction entirely.
Under a standardised RESCO model in solar arrangement, Spectra Solar Power acts as your end-to-end partner. We design, finance, install, own, and maintain the infrastructure on your premises. Your organisation simply signs a long-term commercial solar PPA to purchase the green electricity generated, at a fixed tariff well below standard grid rates for 15 to 25 years.
The economics are simple: you pay nothing upfront, operational bills drop from month one, and all technical, performance, and maintenance risk sits with our team. If the plant underperforms, it is our financial liability, meaning you only pay for the actual units your facility consumes.
As prominent solar PPA providers, we find this framework is ideal for companies with stable daytime consumption and strong credit profiles. This includes manufacturing units, hospitals, corporate offices, and warehouse networks. At contract end, seamlessly renew, walk away, or buy out the asset at depreciated value.
At Spectra Solar, we carry the upfront capital and long-term operational risk—so we structure each project carefully. To qualify for a bankable RESCO solar model in India, an enterprise facility must meet five core parameters:
The RESCO model solar framework works best when your infrastructure consumes power during peak daylight hours. We analyse your 12-month load curve to confirm strong daytime self-consumption, the higher and steadier your daytime usage, the better the tariff we can offer.
Since commercial solar PPA providers fund the asset upfront, clients must demonstrate an excellent credit profile and financial standing to support a long-term 15 to 25-year energy purchase contract.
Your facility must provide clear, unshaded rooftop space or clear land with long-term lease rights, alongside unhindered access for our engineering teams to perform routine maintenance.
The facility must possess a legally sanctioned electrical load capacity that aligns with the proposed solar array size and meets local DISCOM criteria for stable net-metering integration.
The business must either own the building premises outright or hold a secure, long-term commercial lease matching or exceeding the duration of the energy contract.
A standard commercial solar system adds approximately 15 kg per square metre of load on the roof. Our structural engineers assess your roof's load-bearing capacity before any system is designed, to ensure complete safety and compliance.
A standard commercial solar system adds approximately 15 kg per square metre of load on the roof. Our structural engineers assess your roof's load-bearing capacity before any system is designed, to ensure complete safety and compliance.
A standard commercial solar system adds approximately 15 kg per square metre of load on the roof. Our structural engineers assess your roof's load-bearing capacity before any system is designed, to ensure complete safety and compliance.
A standard commercial solar system adds approximately 15 kg per square metre of load on the roof. Our structural engineers assess your roof's load-bearing capacity before any system is designed, to ensure complete safety and compliance.
A standard commercial solar system adds approximately 15 kg per square metre of load on the roof. Our structural engineers assess your roof's load-bearing capacity before any system is designed, to ensure complete safety and compliance.
The zero-CAPEX framework is meticulously tailored to fit specific high-consumption real estate and operational profiles. Spectra Solar has structured high-yield agreements across:
A commercial solar installation is a carefully engineered stack of components. Each plays a specific role in converting sunlight into usable electricity for your business.
The system converts solar from an expensive capital purchase into a simple, utility-style energy service. The mechanics are completely managed by Spectra:
Site & Tariff Evaluation: Spectra surveys your property, designs the array, and executes a 15–25 year agreement with a low, fixed per-unit tariff.
Turnkey Deployment: We fund, procure, build, and commission the power plant on your roof or land at zero cost to your firm.
Generation & Tracking: The system generates clean power consumed directly by your machinery in real-time, tracked via smart metering.
Monthly Billing: You receive a simple bill only for the actual solar units consumed, while we handle all long-term O&M and insurance.
Spectra Solar installs two types of commercial solar configurations, depending on your load profile and grid connection:
The solar plant sits directly on your own roof or premises and feeds power straight into your internal electrical grid. You consume clean solar power first and draw from the utility grid only for the balance. This setup delivers the lowest possible tariff under a commercial solar PPA and is ideal for single-site businesses with strong daytime loads.
Where your local rooftop is too small, constrained, or heavily shaded, Spectra builds the generation asset at a remote location and wheels the power to you through open-access infrastructure. This structured solar PPA model allows large or multi-location enterprises to meet ambitious corporate RE100 targets at scale without using their immediate property footprint.
Under a structured solar PPA model, you substitute a portion of your expensive, rising utility grid tariff with a low, fixed solar tariff. The larger and steadier your daytime load footprint for your residential, or commercial & Industrial operations, the greater your monthly savings yield.
Example:
A manufacturing plant paying a standard utility tariff of ₹9/unit signs a contract at a fixed ₹5.5/unit. Based on a monthly consumption of 60,000 solar units, the facility secures an immediate monthly saving of ₹2.1 Lakh, translating to ₹25 Lakhs in annual savings with absolute zero upfront investment.
| System Size | Grid Tariff | RESCO Tariff | Monthly Saving | Annual Saving |
|---|---|---|---|---|
| 100 kW | ~₹9/unit | ~₹5.5/unit | ~12,000 units | ~₹5 Lakh |
| 500 kW | ~₹9/unit | ~₹5.5/unit | ~12,000 units | ~₹25 Lakh |
| 1 MW | ~₹9/unit | ~₹5.3/unit | ~12,000 units | ~₹53 Lakh |
| 2 MW | ~₹8.5/unit | ~₹5.0/unit | ~12,000 units | ~₹1 Crore |
| 5 MW+ | ~₹8.5/unit | ~₹4.8/unit | ~12,000 units | ~₹2.6 Crore |
Under our comprehensive contract, Spectra carries every layer of capital cost and structural risk. You simply receive cheaper, cleaner power. Here is everything we manage on your behalf for the life of the asset:
We fund all modules, structures, and deployment with zero balance-sheet impact.
We install exclusively top-tier modules and commercial inverters to maximise system uptime.
All ongoing preventive maintenance, specialised cleaning, and asset insurance are fully covered.
Our teams absorb all generation risk; you only pay for actual power produced.
Smart IoT cloud dashboards provide real-time production visibility and automated ESG data.
Buy out the asset at depreciated value or renew the contract at milestones.
The financial case for this framework is straightforward: all of the operational savings, none of the capital investment. You convert an unpredictable, rising monthly utility bill into a low, predictable energy expense while keeping your core cash reserves completely free.
Indicative Economics for a 500 kW On-Site PPA Installation:
Your Upfront Cost: ₹0 — Spectra completely finances the turnkey system.
Grid Tariff Displaced: ~₹9/unit current utility overhead.
RESCO Solar Tariff: ~₹5.5/unit (fixed contract rate or with capped escalation).
Annual Solar Generation: 7–7.5 Lakh units of high-yield clean power.
Annual Savings: ~₹25 Lakh realised during the very first year of operation.
PPA Contract Tenure: 15–25 Years of guaranteed utility price protection.
25-Year Cumulative Savings: ₹6–₹9 Crore added to your bottom line with zero capital outlay.
From initial savings evaluation to final grid commissioning, we manage the complete asset lifecycle with absolute precision and transparency, so your business gains cheaper power without spending a rupee.
Load profile analysis, tariff studies, and an initial savings proposal.
Mutual alignment on contract tariff, tenure, and asset buyout terms.
Spectra secures 100% funding and finalises precision 3D engineering layouts.
Complete management of DISCOM net-metering permits and safety clearances.
Premium structural assembly, tier-1 module mounting, and electrical integration.
System activation, continuous power delivery, and full 25-year O&M management.
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Absolutely nothing. Under a zero investment solar framework, we fund 100% of the engineering, tier-1 procurement, and utility grid installation costs for residential, commercial & Industrial applications. Your capital stays free for core business operations while your energy savings begin immediately upon grid synchronisation.
The tariff is determined by your facility's historical energy consumption, the size of the unshaded roof/land area, and localised utility grid rates. As trusted commercial solar PPA providers, we structure a per-unit price that sits comfortably 20–40% below your current DISCOM commercial tariff.
Our team carries all generation risks. Because you are bound by a solar PPA model, you only pay for the actual kilowatt-hour (kWh) units your facility consumes. If the plant underperforms due to weather or technical faults, the financial shortfall is entirely our liability, never yours.
Yes. Every long-term contract we execute includes clear, pre-agreed buyout milestones. Your enterprise can choose to take full ownership of the clean energy infrastructure at an explicitly defined, highly depreciated book value during the tenure.
In a CAPEX model, your business invests heavy upfront capital, owns the asset immediately, and manages all long-term maintenance risks. To understand what is the RESCO model by comparison: it turns solar into a simple energy service where an outside company handles the investment and operational risk, and you simply buy the power.
Because prominent RESCO model solar companies in India finance these multi-crore utility installations upfront, client organisations must demonstrate stable financials, a strong credit rating, and consistent daytime energy loads to support a long-term energy purchase agreement safely.
Spectra and its institutional financing partners retain legal ownership of the solar power asset throughout the 15 to 25-year contract term. We handle all insurance, compliance, and preventive engineering, allowing you to enjoy clean, affordable power with zero ownership headaches.