1. Introduction

Distributed battery systems are batteries located close to electricity consumers, renewable-energy installations, distribution networks, microgrids, commercial buildings, industries, or individual households. They include behind-the-meter batteries, community battery systems, distributed Battery Energy Storage Systems (BESS), solar-plus-storage systems, and batteries connected to distribution networks.

Their importance has increased because electricity systems are becoming more decentralised. Batteries can store electricity when supply is abundant and discharge it during periods of high demand. They can therefore provide peak shaving, frequency regulation, voltage support, renewable-energy integration, backup power, demand response, and grid resilience.

Governance of distributed battery systems is consequently not merely a question of battery ownership. It involves electricity licensing, grid connection, safety, environmental regulation, tariff design, market participation, consumer protection, data governance, cybersecurity, recycling and end-of-life management.

In India, the regulatory framework is developing rapidly. The Ministry of Power's BESS framework treats storage as capable of being integrated with generation, transmission and distribution assets, while CERC has already considered tariff adoption for standalone BESS projects. (CERC)

2. Meaning and Characteristics of Distributed Battery Systems

A distributed battery system differs from a traditional centralised power station because it is generally:

Small or medium scale compared with conventional generating stations;

Located near loads or distribution networks;

Capable of both charging and discharging;

Often combined with solar PV or other renewable generation;

Potentially controlled through digital software;

Capable of participating simultaneously in several electricity services.

For example, a commercial building may install a 1 MWh battery. It can charge during periods of low electricity prices and discharge during peak demand. A distribution utility may also deploy batteries at substations to manage congestion and voltage.

The same physical battery can therefore have multiple regulatory identities depending upon how it is operated.

3. Why Governance Is Necessary

Distributed batteries create several governance problems.

A. Ownership

A battery may be owned by:

a consumer;

distribution licensee;

renewable-energy generator;

independent storage provider;

aggregator;

municipality;

community organisation.

Regulation must establish who has operational and commercial responsibility.

B. Multiple uses

One battery can provide:

energy arbitrage;

peak reduction;

ancillary services;

frequency response;

backup power;

transmission or distribution support.

This creates questions about cost allocation and revenue sharing.

C. Grid impacts

Large numbers of distributed batteries can alter:

electricity demand patterns;

distribution-system loading;

voltage;

reverse power flows;

congestion;

system frequency.

Consequently, batteries cannot simply be treated as ordinary consumer appliances.

4. Indian Legal Framework

Electricity Act, 2003

The Electricity Act, 2003 provides the basic institutional framework for generation, transmission, distribution, trading and regulation of electricity in India.

Distributed battery governance must therefore be coordinated with:

Central Electricity Regulatory Commission (CERC);

State Electricity Regulatory Commissions (SERCs);

distribution licensees;

transmission licensees;

system operators;

Ministry of Power;

state electricity departments.

The legal classification of storage is particularly important because regulatory obligations can depend upon whether the storage facility is being treated as part of generation, transmission, distribution, or an independent energy-storage service.

5. Government of India's BESS Framework

The Ministry of Power issued guidelines for procurement and utilisation of BESS as part of generation, transmission and distribution assets and for ancillary services in March 2022, subsequently amended in May 2022. CERC has relied upon these guidelines in proceedings concerning large standalone BESS procurement. (CERC)

This represents an important governance development because it recognises that storage can perform several different electricity-system functions.

The regulatory framework therefore needs to distinguish between:

Battery as an asset → Battery as an electricity-service provider → Battery as a market participant.

6. Distributed Storage and Electricity Markets

Distributed batteries can potentially participate in electricity markets through aggregation.

An aggregator can combine hundreds or thousands of small batteries and operate them as a coordinated resource.

For example:

1,000 households × 10 kWh batteries = 10 MWh aggregated storage capacity.

Individually, each household battery may be too small to participate directly in a wholesale market. Aggregation can transform them into a commercially significant resource.

This raises regulatory questions concerning:

registration;

dispatch rights;

metering;

settlement;

market access;

consumer consent;

data sharing;

compensation.

Internationally, the United States provides an important example. FERC Order No. 2222 established a framework intended to facilitate participation of distributed energy resources—including battery storage—in regional wholesale electricity markets through aggregation. (Federal Energy Regulatory Commission)

7. Tariff Governance

Tariff regulation is central to distributed battery governance.

A battery may:

consume electricity while charging;

inject electricity while discharging;

reduce a customer's peak demand;

provide grid services.

If the battery is charged from the grid and later discharges electricity, regulators must determine whether charging should be treated as ordinary consumption and whether subsequent discharge constitutes electricity supply.

Poorly designed tariffs can create:

double charging;

inefficient incentives;

cross-subsidisation;

unfair cost allocation.

Time-of-use tariffs can encourage batteries to charge during periods of low demand and discharge during peak periods.

8. Net Metering and Solar-Plus-Battery Systems

Distributed batteries are particularly important in rooftop solar systems.

A household may:

generate solar electricity during the day;

store excess electricity in the battery;

consume it during the evening;

export remaining electricity to the grid.

Regulators therefore need rules concerning:

net metering;

gross metering;

export limits;

bidirectional meters;

battery charging sources;

treatment of stored renewable electricity.

The objective is to prevent manipulation of incentives while allowing storage to support renewable-energy integration.

9. Grid Connection Governance

Every distributed battery connected to the electricity network can affect the grid.

Connection rules should therefore establish:

technical standards;

maximum export capacity;

protection requirements;

inverter standards;

power-quality requirements;

voltage limits;

frequency response;

islanding protection;

emergency disconnection.

This becomes increasingly important as distributed batteries become capable of two-way electricity flows.

10. Safety Regulation

Battery systems create particular safety risks, especially lithium-ion systems.

Governance should cover:

thermal runaway;

fire prevention;

electrical isolation;

battery-management systems;

ventilation;

emergency response;

installation standards;

fire-protection systems;

safe transportation;

maintenance.

Safety governance should apply throughout the battery lifecycle rather than only at installation.

11. Environmental and Waste Governance

Batteries contain materials that can create environmental problems if improperly disposed of.

Important regulatory areas include:

battery recycling;

producer responsibility;

collection systems;

second-life batteries;

hazardous waste management;

recovery of valuable materials;

disposal standards.

In India, distributed battery governance must therefore be integrated with the country's battery-waste regulatory framework.

A battery that reaches the end of its first electricity-storage life may still be suitable for less demanding applications. This creates a legal distinction between waste and second-life energy-storage equipment.

12. Data and Cybersecurity

Modern batteries are increasingly digitally controlled.

A distributed battery may communicate with:

an aggregator;

distribution utility;

energy-management platform;

electricity market;

cloud-based software.

Consequently, governance must address:

cybersecurity;

consumer data;

remote control;

authentication;

software updates;

cyberattack response;

interoperability.

A cyberattack involving thousands of coordinated batteries could potentially produce system-wide consequences even though each individual battery is small.

13. Consumer Protection

Residential battery systems create consumer-law questions.

Consumers need transparent information about:

battery capacity;

usable capacity;

degradation;

warranty;

expected lifetime;

charging efficiency;

replacement costs;

maintenance;

software dependence.

Contracts should also specify who controls the battery and whether a third party can remotely dispatch it.

A consumer who purchases a battery for backup power may not expect that the same battery will subsequently be controlled by an aggregator for grid services.

14. Governance of Battery Aggregators

Aggregators are likely to become an important institutional actor.

An aggregator can:

combine distributed batteries;

forecast availability;

optimise charging;

respond to market signals;

provide ancillary services;

communicate with system operators.

Regulation should clarify:

Licensing

Whether an aggregator requires an electricity licence or another form of authorisation.

Dispatch authority

Who can instruct the battery to charge or discharge.

Consumer consent

Whether customers can opt out of certain dispatch events.

Liability

Who bears responsibility for damage or non-performance.

Settlement

How revenues and penalties are calculated.

15. Case Law and Regulatory Precedents

15.1 NARUC and APPA v. FERC

The United States' NARUC and APPA litigation concerning FERC Order 841 concerned FERC's effort to remove barriers preventing electric-storage resources from participating in wholesale capacity, energy and ancillary-service markets.

FERC records identify Order 841 as the principal regulatory measure concerning participation of electric-storage resources in organised electricity markets. (Federal Energy Regulatory Commission)

Significance

The dispute demonstrates a fundamental governance issue:

Should electricity-market rules designed for conventional generators also be applied to storage?

Storage does not fit neatly into the traditional generator-versus-consumer distinction because it can both consume and inject electricity.

15.2 Indianapolis Power & Light Co. v. FERC

This litigation involved issues concerning the treatment of grid-scale battery storage under MISO's tariff, including questions relating to compensation, dispatch and market participation. The case was filed in the Seventh Circuit and was dismissed in January 2019. (Federal Energy Regulatory Commission)

Significance

The matter illustrates the importance of tariff design for storage resources. Traditional tariff categories can become problematic when a battery performs multiple functions.

15.3 Appalachian Power Co. v. FERC

In Appalachian Power Company v. FERC, the dispute concerned whether members of the Blue Ridge Power Agency could use battery storage technology to manage demand under their full-requirements power contracts.

FERC's case materials identify the underlying declaratory-order proceeding as involving the use of battery storage for demand management. (Federal Energy Regulatory Commission)

Significance

The case illustrates how battery deployment can intersect with contractual restrictions traditionally developed before widespread deployment of distributed storage.

15.4 Duke Energy Progress, LLC v. FERC

The litigation concerning Duke Energy Progress involved an agreement among Duke and municipal entities using battery-storage technology on their systems.

FERC records describe the underlying proceeding as concerning the use of battery storage technology by municipal power entities. (Federal Energy Regulatory Commission)

Significance

The dispute highlights the interaction between:

utility contracts;

municipal electricity systems;

storage ownership;

demand management;

federal electricity regulation.

16. Indian Regulatory Developments

India is increasingly moving toward large-scale storage integration.

For example, CERC's 2024 proceedings included adoption of tariff for 500 MW/1000 MWh standalone BESS pilot projects, procured through competitive bidding. (CERC)

CERC's more recent proceedings also show continuing regulatory consideration of BESS as an integrated energy-storage asset. In 2026, POWERGRID filed a petition seeking in-principle approval for BESS at existing substations in the Western Region. (CERC)

CERC's current materials also contain specific provisions concerning transmission-charge treatment for certain Battery ESS configurations, demonstrating that storage is increasingly being incorporated into transmission-access and cost-allocation rules. (CERC)

17. Institutional Governance Model

An effective distributed-battery regulatory framework can be represented as follows:

Central Government
↓
Policy and national storage framework
↓
CERC / SERCs
↓
Tariffs + market rules + technical regulation
↓
System Operators / Distribution Utilities
↓
Connection + dispatch + network management
↓
Aggregators
↓
Coordination of distributed batteries
↓
Consumers / Communities / Businesses
↓
Distributed battery assets

This model demonstrates that distributed storage is governed through a multi-level regulatory structure rather than through one institution.

18. Key Legal Issues

19. Challenges for Future Governance

The rapid expansion of distributed storage creates several future legal challenges.

1. Regulatory classification

Storage does not fit comfortably into traditional categories of generator or consumer.

2. Aggregation

Thousands of small batteries may collectively become a major electricity-market participant.

3. Dynamic tariffs

Traditional flat tariffs may not properly value storage's temporal flexibility.

4. Cybersecurity

Digital coordination creates systemic cyber risks.

5. Battery degradation

Market participation can accelerate battery degradation, raising questions about compensation.

6. Equity

Storage incentives may disproportionately benefit consumers who can afford batteries unless appropriate access mechanisms are developed.

7. End-of-life management

Rapid deployment will eventually generate significant volumes of used batteries.

20. Conclusion

Governance of distributed battery systems represents a major evolution in electricity law. Batteries are no longer merely backup equipment; they can function as electricity consumers, energy suppliers, grid-support resources, market participants and digital assets simultaneously.

The principal legal challenge is therefore to create a framework capable of recognising these multiple functions without imposing inconsistent obligations.

Indian regulation is moving toward greater institutional recognition of energy storage through BESS procurement frameworks, CERC tariff proceedings and transmission-related rules. (CERC) International developments, particularly FERC's storage and DER market-participation frameworks, demonstrate the importance of aggregation, market access and technology-neutral regulation. (Federal Energy Regulatory Commission)

Ultimately, effective governance should combine grid reliability, consumer protection, market efficiency, safety, cybersecurity, environmental responsibility and equitable access. The legal system must evolve from regulating electricity as a one-way commodity toward governing a flexible, distributed and digitally coordinated electricity-storage ecosystem.