Sunshades in Space Undertaking. A Cash-Flow-Contingent Framework for Financing a Global Public-Good Projects - Prepy

[Geoengineering News]

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=7022639&__cf_chl_f_tk=ye5JgzAS.QQdMf5veUS0.Fnk8eBmDiZP1xHlxDjSb_M-1783335366-1.0.1.1-3SIYr2OmHxT.b8.N0PpUgWJgyP_mngmlFGuE1wVZ1gw

Authors: Christer Persson, Peder Jonsson, Lars Söderqvist, Henrik Baltscheffsky

Hexicon AB, Håkan Thorsell

30 June 2026

Abstract

A liquidity flow (cash-flow) based method to finance and govern long-term development projects, FiGo, is suggested. FiGo is applied to a space-based SRM (Solar Radiation Modification) method for climate stabilization purposes, Planetary Sunshades at L1*.

This application of the method is a long-term undertaking and is referred to as SiSU (Sunshades in Space Undertaking). The SiSU objective is to develop the capability to reduce up to 1% of the infrared light from the Sun to Earth in order to, as part of a broader climate stabilization effort, stabilize the global temperature in line with the goals of the COP21 “Paris Agreement” (2015).

The global space economy has been forecasted to annually grow by 9 percent to $1.8 Trillion by 2035 [1] WEF and McKinsey & Company. Space: The $1.8 Trillion Opportunity for Global Economic Growth; 2024.

Space investments are typically long-term, and SiSU is based on active engagement in capturing, integrating and optimizing IP (Intellectual Property) returns from the space economy over approximately a 50-year time period. This makes it possible to repay non-public investments with returns, as well as to finance the undertaking as such.

The control structure separates strategic governance by an industrial foundation, financing by a holding company fully owned by the foundation, and operations in subsidiaries of the holding company of two types, IP generating and IP sales returns optimizing.

The financing returns are not reliant on actual deployment of the Sunshades, which removes the risk of profit-driven reasons for deployment overtaking the maturity of strategic, legal, ethical and multilateral approvals.

Source: SSRN