The archive's adoption gap has a structural cause: passive thermal systems eliminate ongoing energy purchases, removing the incentive for utilities, HVAC manufacturers, and large builders to deploy them. A thermal-as-a-service (TaaS) model — where a service provider owns the equipment and sells thermal comfort as a monthly fee — directly addresses this without changing the physics.
The model is not invented from nothing. The archive already assembles its components:
| Page | Contribution |
|---|---|
| Why hasn't passive thermal scaled? | Names the structural barrier: no recurring revenue for the entities that could deploy at scale. |
| Cool Cell architectural climate-control | Quantifies the savings pool: ~$3.50/ft²/year at $0.10/kWh. No operating electricity for cooling. |
| Night sky radiant cooling potentials in New Mexico | Provides independent field data: 25–89% power savings vs. conventional cooling across NM climate zones. |
| Zomeworks shipping container prototype | Shows a standardized, relocatable unit — the asset a service provider could own, deploy, and reclaim. |
| Dear shareholders | Baer's 2004 franchise vision: trained teams with roll-formers operating in regional markets. The financing wrapper was missing. |
| Retrofit-first passive thermal | The deployment logic: attach systems to what already exists; keep the building looking ordinary. |
The closest working analog is the solar PPA (power purchase agreement): the provider owns the hardware, the building owner buys the service at a rate below their current utility bill, and the provider keeps the margin.
Applied to passive thermal:
provider installs + owns system → building owner pays monthly fee → provider captures margin
The fee is priced below the building's current cooling cost. The provider is responsible for all maintenance. The building owner pays nothing upfront.
This resolves the archive's named barriers directly:
| Barrier | How TaaS addresses it |
|---|---|
| Split incentives | Provider owns the equipment and is paid to make it perform |
| No recurring revenue | Monthly fee replaces the utility bill as the revenue stream |
| Builder familiarity | Builder signs a service contract rather than learning new technology |
| Upfront capex | Shifted to the provider; building owner pays nothing to install |
Three properties make Cool Cell and Double Play unusually well suited:
Metering. A solar PPA bills kWh produced. Thermal output is harder to measure directly. Billing likely requires an avoided-cost model (what the building would have paid) — which requires a baseline and creates disputes.
Building transitions. When property sells, the thermal system is embedded in the structure. The contract must be assumable by the buyer or the provider must be compensated — a friction point solar PPAs have encountered.
Climate specificity. The NSRC data shows massive savings in New Mexico's arid climate. In humid climates, night-sky radiative cooling is less effective (cloud cover, dew point). The model is strongest in the Southwest first.
Baer's Dear Shareholders letter envisioned regional franchises with roll-formers — the deployment network was already conceived. What was missing was the financing structure that makes the capex burden disappear for the building owner. The solar PPA model, which solved exactly this problem for photovoltaics, did not yet exist as a template. The container prototype in 2026 suggests the standardized-unit piece is back in development; the financing wrapper remains the open question.
archive physics + solar PPA structure + standardized unit = deployable TaaS model
The archive's systems are not missing performance. They are missing a business model that converts a one-time installation into a recurring revenue stream for the deployer. TaaS does that — and the archive's own engineering properties (near-zero operating cost, long lifespan, relocatable hardware) make it a better TaaS candidate than most active HVAC systems.