Running Watts
Continuous power output determines what loads a unit can sustain. We compare running watts inside product-specific wattage bands so large and small units are judged against relevant peers.
↑ Higher is better
Methodology & Transparency
How We Rank Generators
Deterministic. Transparent. No Paid Placements.
RightGenerator uses published scoring math and fixed weights. The same data always yields the same ranking position, and scores automatically refresh when specifications or price inputs change.
Deterministic ScoringNo Paid RankingPublished Weights
What Inputs Matter
We score measurable attributes and normalize within peer groups (product category + wattage band). This keeps comparisons consistent and technically defensible.
Starting Watts
Surge capacity matters for motors, pumps, and compressors. Units with stronger starting headroom relative to running output score higher for realistic backup scenarios.
↑ Higher is better
Power Quality (THD)
Total Harmonic Distortion measures how clean the electrical output is. Inverter designs inherently produce low THD. Lower THD protects sensitive electronics and contributes 35% of the Quality subscore.
↓ Lower THD is better
Build Quality
Build quality evaluates copper vs aluminum windings, cast iron vs aluminum cylinder sleeves, AVR voltage regulation, GFCI outlets, overload protection, low oil shutdown, spark arrestor, covered outlets, and monitoring features. Contributes 30% of the Quality subscore.
↑ Better materials & safety is better
Fuel Type & Efficiency
Dual-fuel and tri-fuel capability contribute feature points, while runtime-per-dollar contributes to value. This captures both operating flexibility and practical ownership economics.
↑ Flexibility is better
Noise Level (dBA)
Noise is inverted in the scoring math, so quieter units score better. Noise is normalized within peer groups so unit classes remain apples-to-apples.
↓ Lower is better
Runtime
Runtime at load (typically 50%) improves value through runtime-per-dollar. Longer-running units reduce refueling interruptions in real outage or worksite use.
↑ Higher is better
Weight & Portability
Portability is scored on an absolute weight S-curve measuring real-world human effort. Under ~40 lbs scores near-perfect; the score drops steeply through 50-70 lbs. Generators with wheel kits get a 40 lb offset. Volume (trunk test) is a minor factor.
↓ Lighter is better (S-curve)
Outlets & Connectivity
Outlet utility is scored from outlet mix and capability (e.g., 50A, L14-30, TT-30, USB). This contributes strongly to practical-use scoring for portable units.
↑ More utility is better
Price & Value
Value is computed from running watts, surge watts, runtime, and warranty relative to effective price. We evaluate objective ratios instead of editorial discount hype.
↓ Lower cost per capability is better
Brand Reliability
Brand reliability is an explicit published input (0-100) that is normalized and weighted at 20% of final score. It reflects warranty, service network, parts support, and track record — giving brand trust enough influence to meaningfully differentiate established manufacturers.
↑ Higher is better
Weight Breakdown
Final score weights are fixed in the scoring math and published for transparency.
Value25%
Quality25%
Brand Reliability20%
Practicality18%
Features12%
Deterministic Scoring
The engine follows a fixed data flow with no per-generator manual overrides.
Input Specs + Price Data
Normalize Within Category + Wattage Band
Weighted Composite Score
Scores recalculate automatically when specs or price data change.
Metrics are normalized against the current dataset in each peer group.
Brand reliability rationale is documented on each brand page.
Example Snapshot
Example: 7,500W Portable Gas Generator
- Value Score: 8.2
- Quality Score: 6.5 (35% THD + 30% Build Quality + 20% Noise + 15% Warranty)
- Practicality Score: 7.1
- Features Score: 6.8
- Brand Reliability Input: 84 / 100 (normalized to 8.4 contribution base)
Final Score = (0.25×8.2) + (0.25×6.5) + (0.18×7.1) + (0.12×6.8) + (0.20×8.4) = 7.4
Brand Reliability
Definition, scoring scale, and why this factor is capped at 20%
Brand reliability represents warranty coverage, service network quality, parts availability, and historical reliability.
Input scale is 0-100 per brand. In final scoring, this input is normalized and contributes a maximum 20% weight.
The cap preserves balance: strong specs still matter most, but long-term ownership risk is not ignored.
Deal Detection
How "Verified Deal" status is calculated from historical + market baselines
A verified deal must pass quantitative thresholds against both historical pricing and cross-merchant market context where data is available.
Deal score uses fixed weighting: 60% historical drop and 40% market drop. Implausible prices are filtered as likely data errors.
Editorial Independence
Affiliate revenue does not influence ranking position. The scoring pipeline does not include retailer partnership signals, and no manual score boosts are allowed.
What We Don't Do
No paid ranking manipulation
Brands and retailers cannot buy position changes in generator rankings.
No manual score boosts
Individual generator scores are produced by fixed math only; reliability is a published uniform factor.
No fake urgency or inflated discounts
Deals are validated against historical and market baselines, not marketing MSRP tricks.
No opinion-only ranking criteria
Inputs are measurable and reproducible; preferences are handled in finder filters, not hidden scoring rules.
Ready to See This System in Action?
No sign-up required.