In June 2022 the Ministry of Power notified the Electricity (Promoting Renewable Energy Through Green Energy Open Access) Rules — the single most consequential change to how Indian industry can buy clean power in a decade. If your plant draws power from the grid, these rules directly affect your cost structure.
For years, open access to renewable energy was technically available but practically out of reach for mid-sized consumers. High eligibility thresholds, unpredictable surcharges, and inconsistent state-level approvals meant only the largest factories could benefit. The 2022 Rules were drafted to dismantle exactly those barriers.
The headline change: a 100 kW threshold
The most important provision lowered the eligibility limit for green energy open access from 1 MW to 100 kW. This single change brings tens of thousands of commercial and industrial consumers — mid-sized factories, cold storage units, hospitals, IT parks, and textile mills — into the open access market for the first time.
Consumers can now aggregate load across multiple connections to reach the 100 kW threshold, which opens the door for smaller units operating under a common ownership or within an industrial estate.
Surcharge certainty
One of the biggest deterrents to open access has always been the unpredictability of charges levied by distribution companies. The 2022 Rules introduced important guardrails:
- Cross-subsidy surcharge (CSS) and additional surcharge are to be capped and made more predictable, with the additional surcharge graded down over time.
- A banking facility must be permitted on at least a monthly basis, allowing consumers to bank surplus generation and draw it later.
- No additional surcharge is to be levied on green power consumed from captive plants set up for self-use.
Faster, time-bound approvals
The Rules mandate that open access applications be processed through a national portal with defined timelines — approval is deemed granted if not acted upon within 15 days. This removes one of the most frustrating sources of delay: discretionary, open-ended review by state agencies.
Key Takeaways
- Eligibility threshold cut from 1 MW to 100 kW — far more consumers now qualify.
- Load can be aggregated across connections to reach the threshold.
- Surcharges are capped and the additional surcharge is to taper over time.
- Monthly banking of surplus renewable energy must be allowed.
- Approvals are time-bound through a central portal — deemed granted in 15 days.
What it means for your factory
If your contracted demand is above 100 kW and you are currently buying power entirely from your DISCOM at HT tariffs, you are very likely overpaying. Open access lets you procure renewable energy directly from a generator or through a power exchange, often at a landed cost 15–30% below your current tariff — depending on your state, voltage level, and load pattern.
The economics, however, hinge on the specifics: your state's surcharge orders, the availability of generation near your drawal point, your load curve, and whether banking is practical in your region. This is where a state-by-state assessment matters.
Practical next steps
- Pull your last 12 months of energy bills and identify your average landed cost per unit.
- Confirm your contracted demand and voltage level of supply.
- Check your state commission's latest open access and surcharge orders.
- Model the savings against realistic surcharge and wheeling assumptions.
- Shortlist generators or an exchange route and file through the open access portal.
The 2022 Rules made open access viable for the mainstream industrial consumer. Whether it is viable for your plant is an arithmetic question — one worth answering carefully before your next tariff revision.
