Shade Delivery Economics
A techno-economic framework for stratospheric shade platforms. Explore costs, learning curves, and demand reduction scenarios interactively.
The Question: Many methods exist to deliver shade from altitude—balloons, gliders, fixed-wing aircraft, tethered platforms. This analysis establishes the boundaries of value that can be delivered using a demand-reduction framework for cities. Rather than cooling the planet, we cool specific zones during peak demand hours, creating measurable grid savings that fund the infrastructure.
Three Ways to Deliver Shade
✦Each platform type trades off cost, capability, and operational complexity. Gliders offer precision and predictability; balloons have the lowest cost but the least predictability, lending themselves to very large constellations only. These are examples of potential engineering solutions but are not meant to completely define the solution space.
Bill of Materials — LARGE Glider
✦First-of-a-kind (FOAK) cost target: ~$5.0M. This breaks down across structure, propulsion, power systems, ribbon, avionics, and integration.
| Category | Component | Cost (USD) | Notes |
|---|---|---|---|
| Structure | Airframe (wings, tail, fuselage) | $1,000,000 | Carbon composite, tooling, cure |
| Propulsion | Motors + ESCs + props | $500,000 | VTOL + cruise, high-alt props |
| PV & Power | PV array + power electronics | $600,000 | ~10 kW flexible PV, MPPT, wiring |
| Energy | Batteries + thermal management | $400,000 | Multi-kWh Li-ion + heaters |
| Reel & Tether | Reel drivetrain + tether system | $800,000 | Motor, gearbox, brake, drum, load cell |
| Ribbon | Ribbon materials (16,000 m²) | $700,000 | Film, seams, battens, edge finishing |
| Avionics | Autopilot, sensors, comms | $400,000 | Dual-redundant, sat link |
| Integration | Assembly, testing, GSE | $600,000 | Labor, fixtures, NRE |
| TOTAL FOAK | $5,000,000 | $312.50/m² ribbon area | |
Learning Curve — Cost vs. Volume
✦Manufacturing learning follows a ~85% progress ratio: each doubling of cumulative production reduces unit cost by 15%. At 100,000 units, the LARGE glider drops from $5M to ~$347k.
| Units Produced | Unit Cost (Glider) | $/m² | Unit Cost (Balloon) | $/m² |
|---|---|---|---|---|
| 1 | $5,000,000 | $312.50 | $1,500,000 | $93.75 |
| 10 | $2,930,000 | $183.13 | $879,000 | $54.94 |
| 100 | $1,720,000 | $107.50 | $516,000 | $32.25 |
| 1,000 | $1,010,000 | $63.13 | $303,000 | $18.94 |
| 10,000 | $592,000 | $37.00 | $178,000 | $11.13 |
| 100,000 | $347,000 | $21.69 | $104,000 | $6.50 |
| 1,000,000 | $203,000 | $12.69 | $61,000 | $3.81 |
At N=100 (reference scale): Glider unit cost = $1.72M anchors the learning curve. This is the target for first commercial deployments. Beyond 100,000 units, gliders approach ~$350k, making city-scale fleets economically viable.
Demand Reduction Calculator
✦Explore how platform count, operating parameters, and pricing assumptions affect annual revenue and profitability. All values linked to the TEA model.
Physics Model: Area × reflectivity × irradiance = 14.4 MW thermal. ÷ COP 3.0 = 4.8 MW elec-eq. × coupling 0.30 = 1.44 MW AC/platform.
PREMIUM REVENUE OVERLAY
Beyond base grid contracts, premium services from events, stadiums, and data centers pay for targeted shade delivery during high-value windows.
Premium rates: PHX +$150/kW-yr, DXB +$225/kW-yr. Breakdown: events ($60), stadiums ($45), data centers ($45/kW-yr).
District, City, and Global Scenarios
✦From a 10×10 km HeatShield Zone to a 50×50 km city to global 0.1°C offset—each scale has different platform counts, costs, and value propositions.
HEATSHIELD ZONE — 10×10 KM POLYGON
Zone Parameters
Thermal Impact
| Metric | Demo (1) | Pilot (10) | Full District (~1,060) |
|---|---|---|---|
| Platforms | 1 | 10 | 1,060 |
| AC Capacity (MW) | 1.44 | 14.4 | 1,526 |
| Unit CAPEX | $5,000,000 | $2,930,000 | $1,000,000 |
| Total CAPEX | $5,000,000 | $29,300,000 | $1,060,000,000 |
| Annual Cost | $1,365,000 | $8,207,000 | $332,000,000 |
| Revenue (TEA Model) | |||
| Capacity revenue | $241,000 | $2,410,000 | $255,000,000 |
| DR revenue (40h @ $1,500) | $86,000 | $864,000 | $91,600,000 |
| Base energy (1,235h @ $60) | $107,000 | $1,067,000 | $113,100,000 |
| Total Revenue | $434,000 | $4,341,000 | $459,700,000 |
| P&L | -$931,000 | -$3,866,000 | +$127,700,000 |
Revenue based on TEA model: COP=3.0, coupling=0.30, 250 hot days, 6h peak, 85% availability. Capacity priced at $190/kW-yr with 88% accreditation.
CITY COOLING SERVICE — 50×50 KM POLYGON
City Parameters
Thermal Impact
| Metric | Demo (1) | Pilot (10) | Full City (~10,100) |
|---|---|---|---|
| Platforms | 1 | 10 | 10,100 |
| AC Capacity (MW) | 1.44 | 14.4 | 14,544 |
| Unit CAPEX | $5,000,000 | $2,930,000 | $592,000 |
| Total CAPEX | $5,000,000 | $29,300,000 | $5,979,200,000 |
| Annual Cost | $1,365,000 | $8,207,000 | $2,077,000,000 |
| Revenue (TEA Model) | |||
| Capacity revenue | $241,000 | $2,410,000 | $2,432,000,000 |
| DR revenue (40h @ $1,500) | $86,000 | $864,000 | $873,000,000 |
| Base energy (1,235h @ $60) | $107,000 | $1,067,000 | $1,078,000,000 |
| Total Revenue | $434,000 | $4,341,000 | $4,383,000,000 |
| P&L | -$931,000 | -$3,866,000 | +$2,306,000,000 |
Revenue based on TEA model: COP=3.0, coupling=0.30, 250 hot days, 6h peak, 85% availability. Capacity priced at $190/kW-yr with 88% accreditation.
GLOBAL 0.1°C OFFSET — PLANETARY SCALE
Global Parameters
Fleet Requirements
Context: At 0.1% of world GDP (~$115T), a global 0.1°C offset is comparable to current global spending on climate adaptation. Unlike adaptation spending (seawalls, AC, migration), shade infrastructure provides a proactive, reversible intervention. The learning curve means early city deployments fund the path to planetary scale.
Key Assumptions
✦Edit any value below to update the calculator above. Changes sync both directions.