01
Assess
We review load, asset condition, resilience requirements and the existing capital plan.
How We Contract · Illustrative Commercial Framework
Resilient Infrastructure.
Delivered as a Service.
Instead of funding a major plant replacement with your own capital, Siena develops, finances, owns and operates the infrastructure — then delivers the contracted outcome under a long-term service agreement.
$0
Upfront client capital.
The client does not write the construction check. Siena arranges the capital, takes development and asset risk, owns the infrastructure, and is paid over time only under the contracted service structure.
01
You contract for an outcome
Capacity, availability, resilience, thermal service and defined performance — not ownership of equipment.
02
Siena funds the infrastructure
Development, construction, financing, reserves and lifecycle refresh sit with the platform structure.
03
You pay as service is delivered
Fixed availability/capacity economics plus metered usage and transparent pass-through expenses.
04
Performance is contractual
Service levels, remedies, step-in rights, reporting and defined operating boundaries are written into the agreement.
The simple version
From capital project
to service contract.
The commercial model is designed to convert a large, episodic infrastructure purchase into a long-term contracted service with clear risk allocation.
02
Design
Siena sizes the solution around contracted capacity, redundancy, service boundaries and future growth.
03
Finance
The Siena platform funds development and construction. The client contributes no upfront project capital.
04
Deliver
At commercial operation, Siena provides the defined infrastructure service and assumes lifecycle operating responsibility.
05
Perform
Monthly service, transparent metering, audits, maintenance, reserves, refresh obligations and SLA accountability continue through the term.
What the client actually pays for
Three economic lanes.
No mystery line items.
The exact rates are site-specific. The framework is easier: one payment for readiness, one for use, and one transparent pass-through for regulated inputs.
Lane 01
Capacity / Availability Charge
A fixed recurring charge tied to the capacity Siena must keep available and the infrastructure required to deliver it. It supports capital recovery, financing, base O&M, insurance, lifecycle reserves and the obligation to keep the system ready.
Lane 02
Consumption Charge
A variable charge based on actual metered thermal service delivered. It aligns variable operating costs with actual usage rather than burying everything in one opaque rate.
Lane 03
Pass-Through Expenses
Actual regulated utility inputs are passed through at cost, subject to reconciliation and audit. Siena is not paid to consume more and does not create margin on the commodity itself.
Client payment = contracted readiness + measured service + transparent pass-throughs. The commercial value is the transfer of capital, asset, operating and performance obligations — not simply a cheaper utility bill.
Contract framework
The terms that make
“as a service” real.
These are the concepts a board, CFO, facilities team or procurement officer should understand. The proprietary engineering, underwriting and development playbook stays behind the curtain.
Contract Capacity
The maximum service level the client is entitled to draw and Siena is obligated to make available. It is established through diligence and load analysis.
Defines the obligationAvailability
The percentage of time Siena must be capable of delivering within specification. Availability converts reliability from a promise into a measurable contract term.
Service-level commitmentRedundancy & Reserves
Spare capacity, contingency equipment and lifecycle reserves are designed into the service. The client is buying continuity, not just installed equipment.
Resilience by designCapacity Charge
A recurring payment for keeping contracted infrastructure available and maintaining the long-term asset obligation.
Fixed componentConsumption Charge
A metered usage component tied to actual thermal service delivered at the defined point of interconnection.
Variable componentPass-Through Expenses
Defined third-party utility inputs are reconciled transparently at actual cost rather than embedded inside an opaque service margin.
Auditable componentPerformance Remedies
If service falls below defined thresholds, contract remedies may include automatic credits, cure plans and escalation mechanisms.
AccountabilityStep-In Rights
Under defined serious service failures or safety events, the client may receive temporary operational rights until cure or transition.
Client protectionPoint of Interconnection
The physical and contractual boundary between Siena infrastructure and the client’s building-side systems. Clear boundaries prevent ambiguous accountability.
Risk boundaryTerm & Lifecycle Refresh
The service term is structured around the useful life and financing profile of the infrastructure, with refresh obligations addressed in the commercial architecture.
Long-term alignmentAudit & Data Rights
Billing-grade metering, reconciliation and defined client access to its own operational data allow the economics and performance to be verified.
TransparencyEnd-of-Term Options
Definitive agreements can establish clear renewal, purchase or transition pathways so the client is not negotiating from a position of dependency decades later.
Planned exit pathsOne platform, different service expressions
RaaS. CaaS.
The acronym changes with the application. The commercial idea does not: Siena owns the infrastructure and contracts for the delivered service and resilience outcome.
RaaS
Resilience as a Service
Contracted continuity, redundancy, reserves and response obligations designed around mission-critical operations.
CaaS
Cooling as a Service
Specified chilled-water capacity and availability delivered at a defined interconnection point under a long-term service agreement — with thermal storage, heat recovery and related infrastructure engineered in where the site requires them.
The gate every contract must pass
The Day-One Benchmark Test.
Before execution, the all-in contracted rate is benchmarked against the client’s existing all-in cost of the same service, on a jointly validated baseline. If it is not below the status quo on day one, there is no transaction. The economics come from engineering, storage and portfolio scale — never from charging more.
Illustrative decision point
When a building needs
new chillers or HVAC.
A traditional capital approval can be the right answer. Siena is the alternative when the institution would rather contract for the result than own the replacement project.
Traditional capital project
Buy the equipment.
- Client funds the capital program.
- Client manages procurement and construction risk.
- Client owns equipment obsolescence and refresh.
- Operating performance remains largely an internal responsibility.
- Future replacement capital returns to the client’s budget.
Siena alternative
Buy the outcome.
- $0 upfront client project capital.
- Siena develops, finances and owns the infrastructure.
- Contracted capacity, availability and resilience.
- Lifecycle operations, maintenance and refresh obligations sit with the service structure.
- Client pays over time under a defined, auditable commercial framework.
The line we do not blur
What Siena carries. What the client keeps.
A credible long-term contract works because responsibility follows control. The service boundary is explicit.
Siena-side responsibilities
- Development
- Project capital
- Construction
- Plant ownership
- O&M
- Equipment refresh
- Availability
- Resilience readiness
- Metering
- Lifecycle reserves
Client-side responsibilities
- Building-side systems
- Internal distribution
- Facility operations
- Access & coordination
- Demand above contracted capacity
- Payment of agreed service charges
Where the conversation starts
Not with a rate.
With your infrastructure.
The first question is whether the model fits the site. We begin with load data, asset condition, the capital plan, resilience requirements and the operating boundary — then determine whether Siena can create a better alternative.