COMMERCIALISATION OF ELECTRICITY CONSUMPTION DATA

1. Introduction

Commercialisation of electricity consumption data refers to the use, analysis, sharing, or sale of information about consumers’ electricity usage for commercial purposes. Smart meters and digital electricity systems can generate highly granular information showing when, how often, and sometimes how intensively electricity is consumed. Such information can support dynamic tariffs, demand-response services, energy-efficiency products, credit assessment, targeted marketing, forecasting, and new digital energy services.

However, electricity-consumption data can also reveal aspects of household behaviour. For that reason, its commercial use raises important questions concerning privacy, consent, data protection, cybersecurity, competition, consumer autonomy, and regulatory oversight.

2. Nature and Economic Value of Consumption Data

Modern smart meters can record consumption at frequent intervals, including half-hourly measurements. Aggregated and properly governed data may help suppliers develop more accurate tariffs, improve demand forecasting, and design services encouraging consumers to shift electricity use away from peak periods.

Data may also have commercial value for third-party energy-service providers. For example, authorised firms could use consumption patterns to recommend energy-efficiency measures, battery storage, electric-vehicle charging plans, or flexible tariffs.

Nevertheless, the economic value of data does not remove the consumer’s legal rights over its collection and use.

3. UK Data Access and Privacy Framework

In the United Kingdom, the Smart Meter Data Access and Privacy Framework regulates access to smart-meter consumption information and operates alongside wider data-protection legislation. Its central principle is that consumers should generally control who accesses their consumption information, at what level of detail, and for what purposes, except where access is necessary for regulated functions.

Detailed domestic consumption data is likely to constitute personal data. Suppliers may access certain data for legitimate regulated functions such as accurate billing, but access to more granular information attracts stronger requirements. In particular, suppliers require consumer consent to access data more detailed than daily, and explicit consent is required when consumption data is used for marketing purposes.

4. Commercialisation and Consumer Consent

Commercialisation is legally acceptable only where an appropriate lawful basis exists and sector-specific rules are satisfied. Consumers should receive clear information about what data is collected, why it is collected, who will receive it, how long it will be retained, and whether consent can be withdrawn.

Third parties seeking smart-meter consumption information through regulated infrastructure are also generally required to obtain consumer consent. This reduces the risk that valuable electricity-consumption information becomes an unrestricted commercial asset detached from consumer control.

The issue is increasingly important. In September 2026, Ofgem consulted on a proposed Smart Data Repository intended to make settlement-related electricity data available to third parties through consumer-consent arrangements, while establishing appropriate governance and licence rules.

5. Case Law

Lloyd v Google LLC [2021] UKSC 50

Facts: Richard Lloyd alleged that Google secretly collected browser-generated information from millions of iPhone users and used that information commercially to facilitate targeted advertising. He sought compensation through representative proceedings.

Legal Issue: Whether compensation could be obtained collectively merely because personal data had been unlawfully processed, without proving material damage or distress suffered by individual users.

Judgment: The UK Supreme Court rejected the representative damages claim in the form advanced.

Legal Principle/Ratio Decidendi: A breach of data-protection requirements does not automatically entitle every affected individual to compensatory damages. The statutory requirements concerning compensable damage must still be established.

Significance: Although not an electricity case, the judgment is highly relevant where energy companies commercialise smart-meter information. It demonstrates that commercial exploitation of personal data remains subject to data-protection duties, while also defining limits on collective compensation claims.

Vidal-Hall v Google Inc [2015] EWCA Civ 311

Facts: Individuals alleged that Google collected information concerning their internet activity without proper consent and used it for targeted advertising.

Legal Issue: Whether misuse of personal information and data-processing practices could support privacy and data-protection claims.

Judgment: The Court of Appeal recognised the seriousness of claims concerning unauthorised exploitation of personal information.

Legal Principle/Ratio Decidendi: Commercial use of information capable of identifying or profiling individuals can engage substantive privacy and data-protection protections.

Significance: The reasoning is applicable by analogy to highly granular electricity data capable of revealing patterns about consumers’ private lives.

6. Conclusion

Commercialisation of electricity-consumption data can create significant economic and operational benefits, but it must remain governed by consumer control, lawful processing, transparency, cybersecurity, purpose limitation, and effective regulatory supervision. Electricity data should therefore be treated not simply as a commercial commodity but as potentially sensitive information whose economic exploitation must remain compatible with privacy and energy-law obligations.