Tenant Submetering 101: Who Owns the Data in a Multi-Tenanted Office Building?

Reading Time: ~12 minutes
Key Takeaway: In most cases, building owners control the main energy data, but tenant-level data depends on how submeters, contracts, and reporting boundaries are set.

Introduction

Problem:
If you manage or own a multi-tenanted office building, you’ve probably asked this question: who actually owns the energy data? Is it the landlord? The tenant? Or both?

Agitate:
This becomes a real headache when reporting under EECA. One wrong assumption about data ownership can lead to incorrect reporting, compliance risks, and confusion between landlords and tenants. Worse, you may be collecting data—but not allowed to use it properly.

Solution:
That’s where Tenant Submetering 101: Who Owns the Data in a Multi-Tenanted Office Building? comes in. In this guide, we break it down simply—so you know exactly who owns what, who reports what, and what to do next.

📦 Summary Box

• Main meter data usually belongs to the building owner
• Submeter data may belong to tenants—but depends on agreements
• EECA focuses on measuring points, not just ownership
• Submetering does not automatically transfer reporting responsibility
• Clear contracts and data structure are critical

Tenant Submetering 101: Who Owns the Data in a Multi-Tenanted Office Building?

Let’s keep this simple.

In a multi-tenanted office building, energy flows like this:

• Energy comes from a supplier (like electricity)
• It enters the building through a main meter
• Then it gets distributed to tenants
• Sometimes, submeters track each tenant’s usage

This setup creates one big question:

👉 Who owns the data at each level?

Step 1: Understand the Main Meter First

The main meter is the starting point.

• It measures total energy entering the building
• It is usually registered under the building owner or operator
• It is the official measuring point for compliance

What this means:

• The building owner controls the main energy data
• This data is used for:
  • Total energy consumption
  • EECA reporting
  • Energy intensity calculations

👉 Even if tenants use the energy, the main meter data still belongs to the building owner

Step 2: What About Submeters?

Submeters are installed to:

• Track tenant usage
• Allocate energy costs
• Improve energy management

But here’s the key point:

👉 Submeters are secondary measuring tools

They do NOT replace the main meter.

So who owns submeter data?

It depends on:

• Lease agreements
• Building policies
• Meter ownership

Common scenarios:

Scenario A: Landlord-owned submeters

• Installed and maintained by building owner
• Data belongs to the landlord
• Tenants may only receive reports

Scenario B: Tenant-owned submeters

• Installed by tenant inside their space
• Data belongs to the tenant
• Landlord may not have full access

Scenario C: Shared access

• Landlord owns meters
• Tenants can view data
• Both parties use it differently

Step 3: EECA Changes the Way You Look at Data

Under EECA, the focus is not just “who owns the data.”

It’s about:

• Where energy is measured
• How energy flows
• Who receives energy at the measuring point

Important rule:

• Energy consumption is determined at the measuring point
• Not at the submeter level

This means:

👉 Even if tenants have submeters, the main meter still defines the energy boundary

Step 4: Why This Matters for Multi-Tenanted Buildings

Let’s say you have:

• One office building
• One main electricity meter
• Multiple tenants with submeters

Under EECA:

• The building is treated as one energy consumer
• Total energy = main meter reading
• Tenant usage = internal distribution only

👉 Submeter data does NOT change the total energy calculation

Step 5: The Big Misunderstanding

Many people assume:

“If tenants have submeters, they are responsible for their own energy reporting.”

This is not always true.

Here’s why:

• Submetering is for allocation, not boundary definition
• The energy is still supplied to the building first
• The building controls the primary energy intake

👉 So, the building owner usually remains responsible

Step 6: When Tenants Might Be Responsible

There are special cases where tenants may become responsible:

Case 1: Direct supply from utility

• Tenant has their own meter from energy supplier
• Not connected through building distribution

👉 In this case:

• Tenant owns the data
• Tenant may be treated separately

Case 2: Separate measuring points

• Multiple official meters exist
• Each tenant receives energy independently

👉 Then:

• Each tenant may be treated as a separate energy consumer

Case 3: Different legal arrangements

• Contracts define energy ownership clearly
• Tenants manage their own energy systems

👉 Then:

• Data ownership can shift

Step 7: Submetering vs Ownership (Simple Comparison)

Aspect	Main Meter	Submeter
Ownership	Usually landlord	Depends
Purpose	Total energy tracking	Tenant allocation
EECA relevance	High	Low
Reporting basis	Yes	No
Control	Building owner	Varies

Step 8: Why Submetering Still Matters

Even though submeters don’t define ownership for compliance, they are still very useful.

Benefits:

• Fair billing for tenants
• Energy-saving insights
• Identifying high-usage tenants
• Supporting green building goals

👉 Submetering = operational tool
👉 Main meter = compliance tool

Step 9: Data Ownership vs Data Access

Let’s clarify something important:

Owning data and accessing data are NOT the same.

Example:

• Landlord owns submeter system
• Tenant can view dashboard

👉 Tenant has access, not ownership

Why this matters:

• Data sharing must be agreed
• Privacy concerns may arise
• Reporting rights must be clear

Step 10: The Role of Contracts

This is where many problems start.

If your lease does not clearly state:

• Who owns the meter
• Who owns the data
• Who can use the data

👉 You will face disputes later

What your contract should include:

• Meter ownership
• Data ownership
• Data sharing rights
• Reporting responsibilities

Step 11: Common Mistakes to Avoid

Here are the biggest mistakes people make:

❌ Mistake 1: Assuming submeter = ownership

Submeters do NOT automatically transfer ownership

❌ Mistake 2: Ignoring main meter data

Main meter is still the official reference

❌ Mistake 3: Poor documentation

No clear agreement leads to confusion

❌ Mistake 4: Wrong reporting boundary

Using tenant data instead of total building data

Step 12: Practical Example

Let’s make it real.

Scenario:

• Office building with 10 tenants
• One main meter
• Each tenant has a submeter

What happens:

• Total energy = main meter
• Tenant energy = submeter
• Reporting = building owner

👉 Even if one tenant uses 50% of energy,
the building is still treated as one entity

Step 13: How This Links to Energy Intensity

Energy intensity (BEI or EIP) is calculated using:

• Total energy consumption
• Total floor area

👉 Not tenant-by-tenant data

This means:

• Submetering does NOT affect EIP calculation directly
• Only total building data matters

Step 14: When Submetering Helps Compliance

Even though it’s not used directly, submetering helps by:

• Improving data accuracy
• Supporting energy audits
• Identifying inefficiencies
• Preparing for future regulations

Step 15: Best Practices for Building Owners

If you manage a multi-tenanted building, do this:

✔ Install proper submetering

• Ensure accuracy
• Cover major tenants

✔ Keep main meter data clean

• This is your official record

✔ Align contracts with reality

• Avoid assumptions

✔ Set clear data rules

• Who can access and use data

Step 16: Best Practices for Tenants

If you’re a tenant:

✔ Ask about data access

• Can you see your usage?

✔ Understand your meter type

• Submeter or direct supply?

✔ Check your lease agreement

• Who owns the data?

✔ Use data to reduce cost

• Even if you don’t own it

Step 17: The Simple Rule to Remember

If you remember only one thing, remember this:

👉 Energy ownership follows the measuring point—not the submeter

Final Thoughts + Call to Action

Understanding Tenant Submetering 101: Who Owns the Data in a Multi-Tenanted Office Building? is not just about theory—it directly affects your compliance, reporting accuracy, and even cost allocation. Most buildings assume submetering changes ownership, but in reality, the main meter still drives the official energy boundary. Without clear contracts and proper data structure, you risk confusion, disputes, and reporting errors under EECA.

If you’re unsure whether your building setup is compliant—or if your data ownership is structured correctly—don’t guess.

👉 WhatsApp or call 0133006284 today for a quick, clear explanation tailored to your building. It’s better to fix it now than deal with compliance issues later.