Why Indian Industries Are Making the Switch to Open Access Power — And Why the Ones That Haven't Yet Are Paying for It

Something has shifted in the way Indian business owners talk about electricity. A few years ago, the conversation around energy was largely reactive — you absorbed the tariff, you complained about the bill, and you moved on. Energy was a utility expense, managed but not really strategised. It sat in the operating costs column alongside water and waste disposal, expensive and unavoidable but not a priority on the strategic agenda.

That conversation is different now. Walk into the management meetings of manufacturing units in Pune, textile operations in Coimbatore, IT parks in Bengaluru, or large commercial developments in Hyderabad, and energy is on the agenda — not as a cost to be managed, but as a decision to be made. Specifically, a decision about whether to stay on conventional grid power or move to Open Access renewable energy. And increasingly, the businesses having that conversation are coming to the same conclusion.

The switch to Open Access power is accelerating across Indian industry. Here is why — and what it means for the businesses that are yet to have the conversation.

The Problem That Made the Conversation Inevitable

The reason Open Access has moved from a niche option to a mainstream strategic consideration is straightforward: conventional grid electricity in India has become, for industrial consumers, an increasingly difficult cost to absorb.

Industrial and commercial businesses pay some of the highest electricity tariffs in the country. This is not accidental — it is by design. India’s electricity pricing system cross-subsidises residential and agricultural consumers by charging industrial users above the actual cost of generation and delivery. The gap between what industrial consumers pay and what it actually costs to generate the electricity they consume has widened over time, as fuel costs, DISCOM financial pressures, and infrastructure requirements have pushed the tariff revision cycle consistently upward.

For a manufacturing unit where electricity accounts for 20 to 35 percent of total operating costs, a 10 percent tariff increase is not a minor adjustment. It is a meaningful compression of the margin that determines whether a product is competitively priced, whether a facility is financially viable, and whether an investment in capacity expansion makes economic sense. Multiply that compression across three, five, or eight consecutive years of upward revisions, and you begin to understand why the business owners who have been absorbing it are now looking very seriously at alternatives.

Open Access is the alternative that the numbers support. And the numbers are not close.

What Open Access Power Actually Offers

Under the Open Access framework established by India’s Electricity Act of 2003, industrial and commercial consumers above a threshold consumption level have the right to purchase electricity directly from a power generator of their choice — rather than being limited to the tariff and supply terms of their local distribution company.

In practice, this most commonly means signing a Power Purchase Agreement with a renewable energy developer — a solar farm, a wind project, or increasingly a hybrid facility combining both. The electricity is generated by the developer’s plant, fed into the existing transmission grid, and delivered to the industrial consumer’s facility through the same infrastructure that carries conventional grid power. Nothing about the physical delivery changes. The commercial arrangement — who supplies the power, at what price, and under what terms — changes entirely.

The financial difference that creates is significant. Renewable energy, sourced through a directly negotiated Open Access agreement, is consistently available to industrial consumers at 20 to 40 percent below the conventional grid tariff — even after all applicable charges, including wheeling charges, transmission fees, and cross-subsidy surcharges, are factored in. In states like Karnataka, Tamil Nadu, Maharashtra, and Gujarat, where the renewable resource base is strong and the regulatory framework for Open Access has matured, that saving is well-established and consistently delivered.

For a business currently paying ₹7 to ₹9 per unit on conventional grid supply, accessing renewable power at ₹4.5 to ₹5.5 per unit on a long-term Open Access agreement represents a cost reduction that flows directly to the bottom line — every month, for the duration of the contract.

The Cost Argument Is the Starting Point — But Not the Whole Story

Most businesses come to Open Access through the financial case. The tariff comparison is compelling, the savings calculation is straightforward, and for any business where electricity is a meaningful operating expense, the numbers make a persuasive argument on their own.

But the businesses that have gone through the process and settled into their Open Access arrangements consistently report that price stability — more than the absolute level of savings — becomes the feature they value most over time.

A long-term Open Access Power Purchase Agreement locks your electricity tariff for the duration of the contract. Typically 15 to 25 years. The rate you pay in the first month of your agreement is the rate you pay in the tenth year. While your competitors on conventional grid power continue to absorb the tariff revision that arrives each financial year, your energy cost is fixed — a known, plannable number that your finance team can model with confidence across multi-year horizons.

The compounding effect of that stability is significant. The cost gap between a business on Open Access renewable power and a competitor still on the DISCOM grid doesn’t stay constant — it widens every year that the DISCOM issues another revision. The competitive advantage built through an early Open Access decision grows progressively larger, not smaller, as time passes.

Sustainability: From Marketing Claim to Market Access Requirement

The sustainability case for Open Access renewable energy has evolved considerably in how it is understood by Indian business owners. Three or four years ago, it was treated primarily as a reputational benefit — something that looked good in annual reports and supported brand positioning with environmentally conscious consumers. Real value, but secondary to the financial case.

Today, for businesses with international customer relationships, global supply chain participation, or institutional investor backing, clean energy credentials have moved from secondary to essential. The global buyers, investment funds, and procurement teams that Indian businesses increasingly deal with are applying ESG criteria with a specificity and rigour that they were not applying two or three years ago. Renewable energy usage is, in many of these evaluations, becoming a baseline requirement — a qualification threshold rather than a differentiating attribute.

Open Access renewable energy provides the verified, documented clean energy usage data that these evaluations require. The megawatt-hours of solar or wind power consumed through an Open Access agreement are trackable, reportable, and credible in the way that a renewable energy certificate or a carbon offset is not. For a manufacturer in Tamil Nadu supplying to a European fashion brand, or a food processing unit in Maharashtra working with a multinational retail group, that documentation is the difference between qualifying as a supplier and not.

Where the Adoption Is Happening Right Now

The industrial regions of Karnataka, Tamil Nadu, Maharashtra, and Gujarat are seeing the most active Open Access adoption — and the reasons are consistent across all four.

Each state has a strong renewable resource base — solar irradiance in Gujarat and Karnataka, wind resources in Tamil Nadu and Maharashtra — that gives independent renewable developers the conditions to build and operate competitive projects. Each has a regulatory framework for Open Access that has matured enough to provide the clarity and procedural reliability that large industrial consumers need before committing to a long-term energy arrangement. And each has a critical mass of industrial consumers who have already made the switch, demonstrating the model’s viability in a way that makes the decision easier for businesses still evaluating it.

Beyond these four states, the momentum is building in Andhra Pradesh, Rajasthan, Telangana, and increasingly in states where regulatory frameworks are being updated to align with central policy direction. The geography of Open Access adoption is expanding, and the industries participating in it are diversifying — from the large manufacturing units and textile mills that were the earliest adopters to IT parks, data centres, hospitals, educational institutions, and large commercial developments.

The Cost of Staying Put

For business owners who are aware of Open Access but have not yet moved — who have evaluated it at some point, or heard about it from a peer, or intended to look into it more seriously when things were less busy — the important thing to understand is that every month of delay has a specific, calculable cost.

The electricity you consume while on conventional grid power, at the tariff your DISCOM sets, is electricity that could have been purchased at a lower rate through Open Access. The saving you didn’t make this month is not recovered next month. It is gone. And the tariff revision that arrives next financial year will be applied to your DISCOM bill, not to the fixed Open Access rate you would have locked in if you had moved six months ago.

The businesses that moved early are already compounding their advantage. The ones that move next will do the same, from the day their agreement goes live. The ones that continue to wait will keep receiving the bill — and the next revision, and the one after that.

The Conversation Worth Having

At Open Access Energy, we work with industrial businesses across India that are ready to make the switch — and with businesses that aren’t yet sure whether Open Access is right for them and want to understand the numbers properly before deciding.

We start with your consumption data and your current electricity costs. We build the landed cost calculation for Open Access power in your state. We show you the saving, clearly and honestly, before you make any commitment. And if you decide to move forward, we manage the entire process — from developer selection and agreement structuring to regulatory approvals and ongoing energy management.

Reach out to Open Access Energy today. The switch that the businesses ahead of you have already made is available to you right now — with the same savings, the same price stability, and the same clean energy credentials that are reshaping how Indian industry competes.