| Risk holder |
Provider absorbs all volatility (within force majeure carve-outs). |
Owner absorbs all volatility. Provider passes through actual cost plus margin. |
Shared. Provider takes performance risk; owner retains corrective and capital work. |
Allocated by scope. Base fee covers preventive; variable covers capital and out-of-scope. |
| Pricing basis |
Annual $/MW or $/kWp, escalated by index. Single number per year. |
Hourly labor rates, marked-up materials, mobilization fees per event. |
Base fee + bonus/penalty against availability or PR threshold. |
Base $/MW for routine, T&M or unit pricing for out-of-scope and capital. |
| Indicative pricing |
Solar PV utility-scale: typically $5-12/kW-yr. Storage adds $3-8/kWh-yr. |
Hourly rates $85-150 for technicians, $150-300 for engineers, plus G&A markup. |
Base 70-85% of fixed equivalent, with ±10-20% performance band. |
Base 60-75% of fixed equivalent, variable line items unit-priced. |
| Owner oversight need |
Light. Provider self-manages within KPI envelope. |
Heavy. Every invoice requires owner verification. |
Moderate. Performance measurement is the oversight burden. |
Moderate to heavy. Variable scope requires invoice-by-invoice oversight. |
| Data infrastructure required |
Minimum. KPI thresholds with manual reporting workable. |
Moderate. Work order tracking and invoice audit. |
High. Real-time SCADA, baseline performance ratio, defensible measurement. |
Moderate. Scope categorization matters more than continuous measurement. |
| Bankability |
Highest. Lender's IE prefers fixed for predictability. |
Lowest. Variable cost base creates DSCR uncertainty. |
Moderate. Lender comfort depends on baseline credibility. |
Most common at utility scale. Variable component scoped to be capped. |
| Common at scale |
Common in mature markets, well-characterized assets, smaller portfolios. |
Uncommon at utility scale. Common in early-life and unfamiliar geographies. |
Growing. Used where data infrastructure justifies it. |
Default at utility scale. The structure most multi-GW agreements use. |
| When it's the answer |
Owner wants budget certainty; asset is well-characterized; provider has cost data to price tightly. |
Asset is early-life or unfamiliar; owner has the bench to oversee; both parties want to learn before locking pricing. |
Data is mature, baseline is defensible, both parties want aligned incentives on availability/PR. |
Multi-site or multi-GW scope; routine work is standardized; capital and out-of-scope work need separate treatment. |