In short
- What it is: green open access lets a factory or business buy solar or wind power from a generator through the grid, instead of paying the full DISCOM tariff for every unit.
- Who can: under the central Green Energy Open Access Rules 2022, consumers with 100 kW or more of contracted demand; no minimum for captive users. States set their own rules. In Tamil Nadu it is 63 kVA, for HT and EHT connections only.
- Two routes: third-party (buy from a generator; cross-subsidy and additional surcharge apply) or group captive (own at least 26% of the plant company and use at least 51% of its power; both surcharges are exempt).
- What Aran does: compares the routes on your real bills, finds the generator and handles the process. We are a facilitator, not a power trader.
Why your cost per unit is higher than it needs to be
If you are an HT industrial or commercial consumer, you are buying power at a tariff that carries cross-subsidy built into it. Green open access lets you buy renewable power from a generator through the grid instead — often at a meaningfully lower landed cost, with the green attributes you may already be asked for.
The two routes, honestly compared
Illustrative default values — request a site-specific quotation. Charges and qualifying criteria are set by the applicable regulations and change; we cite the order behind any number we give you.
What changed recently — and why it matters
Group captive became materially easier to qualify for in 2026: a company together with its holding company and fellow subsidiaries can now be treated as one captive user, and the old proportionality band that used to break these deals is gone. If a group captive conversation died for you in 2024 or 2025, the answer today may be different. It still needs real equity and annual verification — we will tell you the entry price before you spend time on it.
How we work with you
- Send your last few electricity bills and your sanctioned demand.
- We work out your true landed cost today — including every charge, not just the energy rate.
- We show what each route would land you at, and whether the saving justifies the effort.
- If it stacks up, we connect you with generators and guide the approvals. If it doesn't, we say so.
How we're paid: looking at your bills costs nothing. If a deal goes ahead, our fee is a small facilitation fee on each unit delivered, shared by the generator and the buyer and agreed in writing before anyone signs. The power agreement is directly between you and the generator; we never buy or resell the power.
Certainty, not a promise that tariffs always rise
We will not tell you grid tariffs only go up — in some states regulated energy charges are actually scheduled to fall. What open access gives you is a known cost per unit for the term of the contract, while tariffs, time-of-day slabs, banking rules and grid charges keep moving around you.
Also worth comparing: solar on your own premises
Power generated on your own roof and used on site avoids wheeling, cross-subsidy surcharge, additional surcharge and banking entirely. For many buyers that beats open access outright. See zero-investment rooftop solar →
Common questions
How much can we actually save?
It depends on your state, your tariff, your sanctioned demand and which route you qualify for. That is why we start from your actual bills rather than a headline percentage. We will show the landed cost per unit with every charge included, and tell you if the saving does not justify the effort.
What is the difference between group captive and third-party open access?
In group captive you hold a qualifying ownership stake in the generating plant and consume its power, which exempts you from cross-subsidy and additional surcharge. In third-party open access you simply contract to buy from an independent generator — simpler, but those surcharges apply. We advise on which fits you.
Do we need to invest capital?
Third-party open access needs no equity. Group captive does — it requires a real qualifying shareholding plus annual verification. We publish that up front so you can decide before spending time on it.
Is our load big enough?
Under the central Green Energy Open Access Rules 2022, the floor is 100 kW of contracted demand or sanctioned load, with no minimum for captive consumers. States set their own rules: in Tamil Nadu it is 63 kVA for HT and EHT consumers, and LT connections cannot take open access at all. Tell us your sanctioned demand and we will tell you straight away whether you qualify.
Which states do you cover?
Phase 1 is Tamil Nadu, where we know the regulations well. Phase 2 extends across India. Rules differ by state, so tell us where your plant is and we will be honest about what is workable.
Send your bills, get your real cost per unit
Share your sanctioned demand and recent bills. We will come back with your true landed cost today, what each open access route would land you at, and whether it is worth doing. No obligation.
Thanks — we've got your details and will get back to you soon.
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