Most energy arguments run aground on vocabulary. Terms that have precise technical meanings get used loosely, and two people can hold identical views while appearing to disagree entirely because they mean different things by "clean" or "cost".
These are the forty or so terms that cause the most trouble, grouped by where they appear.
Emissions accounting
| Term | What it means | How it is misused |
|---|---|---|
| Territorial accounting | Counting emissions released inside a country's borders | Treated as a loophole; it is the international convention every country uses |
| Consumption-based accounting | Counting emissions embodied in what a country consumes | Presented as the corrected figure; it is a different measurement, not a correction |
| Scope 1, 2, 3 | Direct, purchased-energy and value-chain emissions for a firm | Scope 3 quoted alongside another firm's Scope 1 as though comparable |
| CO2e | All greenhouse gases converted to CO2 equivalent by warming potential | Compared against CO2-only figures without adjustment |
| GWP20 vs GWP100 | Warming potential measured over 20 or 100 years | Methane looks far worse on GWP20; the choice is rarely stated |
| Emissions intensity | Emissions per unit of output | Falling intensity reported as falling emissions; both can move opposite ways |
| Fugitive emissions | Unintentional releases from equipment | Estimated from equipment counts, not measured; uncertainty is wide |
| LULUCF | Land use, land use change and forestry | Extremely volatile year to year because of wildfire; small changes are noise |
Electricity
| Term | What it means | How it is misused |
|---|---|---|
| Capacity (MW) | Maximum instantaneous output | Reported as though it were energy delivered |
| Generation (MWh) | Energy actually produced over time | Confused with capacity in almost all coverage of new projects |
| Capacity factor | Actual output as a share of theoretical maximum | Omitted, which is what makes the capacity/generation confusion possible |
| Levelised cost (LCOE) | Lifetime cost per MWh of a generator in isolation | Used to compare variable and firm generation; it excludes system integration cost |
| Firming | Backup capacity to cover variable output | Left out of cost comparisons, which is the single largest omission in the debate |
| Energy-only market | A market paying for energy delivered, not for availability | Alberta's design; its reliability implications are widely misunderstood |
| Curtailment | Generation available but not taken by the grid | Cited as waste; often the cheapest option at that moment |
| Interconnection queue | Projects waiting for grid connection approval | Queue position treated as a formality rather than a long-lead constraint |
Carbon pricing and markets
| Term | What it means | How it is misused |
|---|---|---|
| Output-based allocation | Free allowances scaled to production, to protect trade-exposed industry | Described as an exemption; it changes the marginal signal, not the price |
| Compliance price | The headline rate a firm pays into a fund per tonne | Quoted as the effective carbon price when credits trade far below it |
| Credit price | What tradable credits actually change hands for | The number that drives investment decisions, and the one rarely reported |
| Benchmark | The intensity standard a facility must beat | Stringency and tightening schedule decide whether a system bites; rarely discussed |
| Offset | A credit for reductions outside the covered system | Additionality — would it have happened anyway — is the whole question |
| Carbon leakage | Production relocating to avoid a carbon price | Magnitude is contested; existence is not |
| Contract for difference | A guarantee underwriting a future carbon price | Under-covered, though it addresses the main barrier to abatement investment |
| Taxonomy | A definition of which activities count as climate-aligned for investors | Treated as technical housekeeping; it determines where capital may flow |
Projects and delivery
| Term | What it means | How it is misused |
|---|---|---|
| Estimate class | The maturity and accuracy range of a cost estimate | An early-stage estimate quoted publicly, then treated as a budget |
| FID | Final investment decision — the point of real commitment | Announcements before FID reported as though the project is proceeding |
| Contingency | Funds held against quantified risk | Set by rule of thumb rather than quantified analysis |
| Critical path | The sequence of activities determining the finish date | Compressing anything off the critical path changes nothing |
| Nameplate capacity | Designed output of a facility | Ramp to nameplate takes time and is frequently omitted from schedules |
| Duty to consult | The Crown's constitutional obligation regarding Aboriginal and treaty rights | Treated as a procedural step; it has defeated more Canadian projects than economics has |
Three rhetorical moves worth recognising
Beyond vocabulary, three argumentative patterns recur often enough in Canadian energy debate to be worth naming.
The boundary swap. Establish a claim using one boundary, then draw a conclusion that only follows under a different one. Canadian oil has comparatively low production intensity, therefore Canadian oil is climate-friendly. The first clause is a production-boundary claim; the second is a lifecycle claim.
The scenario promotion. A projection produced under stated assumptions is reported as a forecast, then cited as an expectation. By the third citation the assumptions are gone. Canada Energy Regulator outlooks are scenarios and are routinely reported as predictions.
The single-instrument objection. Demonstrate that one policy will not achieve a target on its own, and treat that as an argument against the policy. Almost no instrument achieves a target alone; that is why policy comes in packages. The valid version of this argument compares one package against another, not one instrument against the whole problem.
Using this
The fastest way to improve your own reading is to notice when a term in the left column appears without the qualification in the middle column. That is usually where an argument is doing something it has not declared.
The fastest way to improve your own writing is to state the qualification even when it weakens your point. A claim that survives its own caveats is worth far more than one that needs them hidden.
Sources
- Environment and Climate Change Canada, National Inventory Report glossary.
- Canada Energy Regulator, supply and demand outlook methodology on scenarios.
- AACE International cost estimate classification framework.
- Canadian Centre for Energy Information, units and definitions documentation.
Organisational descriptions reflect each body’s own published material and independent reporting as of September 2026. Funding arrangements and mandates change; check the primary source before relying on anything here.