In India the value of banked energy and of a co-located battery is set by rules, not prices.
D. S. Nikam — Independent research, energy storage and power marketsEarly list open · All reports
The rules change by order, amendment and draft, in several states at once. Most of that change never reaches a model until it reaches a bill.
What it will be
Every change that moves a number in the India Renewable Banking Index, within days of the order, with its effect in rupees per kWh on the rows it touches.
The storage position in each state — which regime a co-located battery falls under, what is in force, what is only in draft, and what is missing.
The next ninety days — tariff orders, surcharge petitions, draft notifications and court listings that are due, and what each would move.
Karnataka, Tamil Nadu, Gujarat and Andhra Pradesh to begin with; Maharashtra as its litigation resolves.
Three sample entries
Three positions that are easy to miss when only the headline rule is read. Each entry states where the rule stands today, whether it is in force or only in draft, the clause it rests on, and the date it was last checked against the primary text.
Tamil Nadu · StorageNot provided for
A co-located battery has no deviation category
For deviation settlement, Regulation 13(2) sends solar, wind and wind-solar hybrid generators to the 2024 forecasting regulations, other green generators to the 2019 deviation regulations, and hydro, including pumped storage, outside deviation settlement. A co-located battery is named in none of the three. The same Regulations make storage "Green Energy" when it uses renewable energy, but define "Banking" only for energy from wind, solar and wind-solar hybrid stations.
Why it matters
Which deviation regime applies to a battery behind a solar or wind connection, and whether its stored energy can be banked, is not settled by the text. Until the Commission says so, it rests on contract wording.
Rests on
TNERC (Terms and Conditions for Green Energy Open Access) Regulations, 2025, Regulations 3(1)(b), 3(1)(i) and 13(2)
Karnataka · Connectivity and GNADraft · date passed
The commencement date has passed. The rules have not.
The draft Connectivity and General Network Access Regulations proposed to come into force on 1 October 2026, repealing the Open Access Regulations, 2025 from the date of notification. No final notification had been located as at 15 October 2026. Until one issues, the draft has no force and the 2025 Regulations continue to apply.
Why it matters
A schedule, guarantee or model that took 1 October 2026 as the start date is running on rules that are not yet in force. Every period that runs from commencement has not begun.
Rests on
Draft KERC (Connectivity and General Network Access to the Intra-State Transmission and State Distribution System) Regulations, 2026, Notification No. KERC/F-32/V-27/2083
Ground-mounted solar and onshore wind plants commissioned after 1 July 2027 are to carry storage of at least 10% of installed capacity for two hours; for plants commissioned after 1 July 2029 and up to 30 June 2031, four hours. The two-hour proviso carries no end date. Read as drafted, the two overlap from 1 July 2029, and after 30 June 2031 only the two-hour proviso is left.
Why it matters
A plant due after mid-2031 cannot tell from the draft whether to plan for two hours of storage or four. The final text of this clause decides it.
Rests on
Draft CEA (Technical Standards for Construction of Electric Plants and Electric Lines) 2nd Amendment Regulations, 2026, proposed Regulation 106B(20)
Published
Draft dated 03.09.2026; comments invited until 15.10.2026 (extended from 04.10.2026)
Checked
15.10.2026
When a rule moves, its entry is updated with the date of the change, and the earlier position stays on record.
Waiting on one of these, or on a rule not listed here? Write in with the state and the decision; the reply will list the entries that touch it.
What stays free
The reports and their index tables. Nothing already published moves behind a wall.
Who it is for
Open-access and captive developers, battery developers, lenders and their engineers, and large consumers who bank.
Join the early list
Write to research@dsnikam.in with Tracker in the subject, and in two lines: what you do, which states matter to you, and one decision you are waiting on.
Early readers will help decide what the Tracker covers first. There is no pricing yet, and nothing is charged for joining the list.