Scope 1, 2 and 3 Emissions: A Beginner's Guide With Business Examples
Scope 1, scope 2 and scope 3 describe different sources of an organisation's greenhouse gas emissions, as explained in GHG Protocol's scope definitions. Scope 1 covers direct emissions from sources it owns or controls. Scope 2 covers emissions associated with purchased or acquired electricity, steam, heating and cooling. Scope 3 covers other indirect emissions across its value chain.
The useful question is not simply “where did the emissions happen?” It is “whose inventory are we preparing, what is included in its boundary, and what relationship does this activity have to that organisation?” This beginner's guide explains classification with business examples. It is not a complete inventory method or a verified carbon disclosure.
Start with the organisation and reporting boundary
The US EPA introduction to organisational emissions inventories places boundary-setting before data collection. Without that step, two colleagues may classify the same asset differently because they are answering different questions.
For a first discussion, write the reporting company's name, period, sites and relevant ownership or control assumptions at the top of the working sheet. Mark unresolved leases, joint arrangements and outsourced activities for review. A payment made by the company does not automatically make the associated emissions scope 1.
The three scopes in plain language
The following examples assume the activities fall within the stated reporting boundary. Actual classification must follow the applicable accounting approach.
Scope 1: emissions from owned or controlled sources
Fuel burned in the reporting company's own controlled boiler or vehicle is a typical direct-emissions example. Refrigerant escaping from its controlled cooling equipment can also create direct greenhouse gas emissions. Fuel purchase records help identify activity, but purchases and fuel consumed during the reporting period may differ.
Scope 2: purchased energy used by the organisation
Purchased electricity is the familiar example. Generation emissions occur at the electricity producer, but the consuming company accounts for the associated purchased-energy emissions under scope 2. GHG Protocol's Scope 2 Guidance also covers purchased steam, heat and cooling; scope 2 is not limited to electricity.
Electricity consumption and emissions are different quantities. A meter gives energy use; calculating associated emissions requires a suitable method and emission factor. A renewable-energy claim also requires more evidence than a supplier's general environmental slogan.
Scope 3: other value-chain emissions
These include relevant upstream and downstream activities outside scopes 1 and 2: purchased goods, business travel, employee commuting and the use of sold products are common examples. GHG Protocol's Corporate Value Chain Standard organises scope 3 into 15 categories. Not every category is relevant to every business.
Scope 3 is not a label for “unimportant emissions” or for everything the company cannot measure easily. A manufacturer may need to examine purchased materials and product use carefully even when those activities occur outside its premises.
Business examples: classify the relationship first
This hypothetical table uses a single reporting manufacturer. Assume it owns and controls the generator and delivery van, buys grid electricity, and purchases transport from an independent carrier. The table is a learning aid rather than an exhaustive category assessment.
Activity | Likely classification under these assumptions | Evidence to investigate |
|---|---|---|
Diesel burned in its controlled standby generator | Scope 1 | Fuel consumed, asset boundary and operating records. |
Fuel burned in its controlled delivery van | Scope 1 | Fleet boundary and fuel records. |
Grid electricity purchased for its factory | Scope 2 | Metered energy, billing period and applicable accounting method. |
Purchased steel used in production | Scope 3: purchased goods and services | Material quantities and suitable supplier or other supported data. |
Freight bought from an independent carrier | Scope 3; confirm the relevant transport category | Contracts, payer, route and shipment information. |
Employee commuting in personal vehicles | Scope 3: employee commuting | Appropriate travel information and documented assumptions. |
Employee business flights | Scope 3: business travel | Travel booking records and method-specific activity data. |
A practical test is to change one assumption: if a journey is carried out by an independent carrier rather than the company's controlled van, the relationship changes even if the delivery destination is identical. Conversely, an invoice that bundles several services needs analysis; its accounting heading alone does not classify the emissions.
From classification to a reliable working record
Keep a source list before attempting a single total. This original starter structure helps expose missing evidence and questions requiring review.
Working-sheet field | Hypothetical entry |
|---|---|
Reporting organisation and period | Example manufacturer; calendar reporting year |
Activity and site | Purchased electricity; main factory |
Boundary assumption | Factory included in reporting organisation |
Scope decision | Scope 2, subject to applicable method |
Activity unit and source | kWh; monthly bills reconciled to meter records |
Missing information | One billing period unresolved; estimate method not yet approved |
Owner and next action | Facilities team to obtain missing bill; inventory reviewer to confirm method |
Keep “not yet known” separate from zero. A blank fuel record does not prove that a generator did not operate. Also distinguish a classification table from an emissions inventory: a list of sources is an input, while an inventory needs quantified emissions, methods, boundaries and quality controls.
Carbon dioxide equivalent, often written CO2e, allows different greenhouse gases to be expressed using a common comparison basis. It is not interchangeable with litres of diesel, kilowatt-hours or kilograms of waste. Retain units throughout the calculation chain and identify the version and geographic suitability of factors before using them.
Common mistakes and how to avoid them
Most beginner errors begin with an unstated assumption. Record that assumption and the decision becomes easier to check.
Treating every utility or fuel invoice as scope 2: identify the actual activity, not just the accounts category.
Counting only visible smoke: purchased electricity and other indirect activities can matter without an onsite exhaust.
Calling a missing scope 3 category zero: distinguish not relevant, excluded with explanation and not yet assessed.
Comparing two companies without checking methods: differences may reflect boundaries, business models or data, rather than better performance.
Claiming an efficiency saving proves an equal emissions reduction: confirm energy quantity, period, emission factor and other relevant changes.
GHG Protocol explains that its Scope 3 Standard supports tracking a company's emissions over time; it is not designed by itself for direct comparisons between companies. A simple ranking of suppliers by unqualified totals can therefore mislead purchasing decisions.
Using the concepts in a Pakistani workplace
The scopes are accounting concepts, not a statement that every Pakistani business has the same legal reporting obligation. Confirm the purpose of your inventory: internal management, a customer request, a voluntary framework or an applicable disclosure requirement. Check the relevant jurisdiction and reporting framework before making compliance claims.
The official Scope 2 page checked for this guide still identifies the published guidance as 2015 and describes a consultation that ended in January 2026. Consultation proposals are not automatically replacement requirements. Verify the current adopted documents and transition arrangements before preparing a formal inventory.
For learning about workplace energy and carbon awareness, review SIP's Carbon Awareness and Energy Management award. Check its current syllabus; introductory awareness does not establish competence to verify a corporate inventory. For the management-system context, see what ISO 50001 covers. Energy management and greenhouse gas accounting are related tasks with different outputs.
Frequently asked questions
These answers address common questions about applying the ideas in this guide.
Purchased electricity consumed within the reporting boundary is the typical scope 2 example. Generating electricity by burning fuel in the organisation's own controlled equipment creates direct emissions from that fuel under scope 1.
Do not infer disclosure requirements from the word indirect. Determine what the applicable reporting standard, programme or obligation requires and document relevant categories and exclusions.
Different organisations can account for the same value-chain activity in different scopes. An electricity generator's direct generation emissions and its customer's purchased-energy emissions illustrate the relationship. Keep each reporting organisation's boundary clear.
Research and editorial scope
Primary sources checked on 7 November 2026. This article was researched and written with AI assistance; checks in this publishing run were automated. No article-specific human editorial or qualified expert review has been recorded; the byline does not establish that such review occurred. Examples are hypothetical teaching material and the AI-created cover is illustrative. Recheck this guide when its sources or your workplace arrangements change.
