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How to read this page. The written overview is an AI-generated educational summary. Papers, references, costs and companies are verify-yourself links — we do not fabricate citations, prices or company lists.
PART 1Executive Overview
1Definition

Space-Based Solar Power involves deploying large-scale solar panels in orbit around the Earth, where they can continuously harness solar energy without atmospheric interference. This collected energy is then transmitted back to Earth via microwaves or lasers for conversion into usable electrical power.

Category
Energy
Best use
Global wireless power
Stage
CONCEPT
2Problem It Solves

It addresses the intermittency of solar energy collection by providing a constant source of sunlight in space, and potentially offers a more efficient and reliable method for large-scale power generation compared to terrestrial solar farms.

3Lifecycle / Journey Stage
concept
PART 2Technical & Manufacturing
4How It Works

Orbital satellites equipped with photovoltaic cells capture sunlight and convert it into electricity. The generated power is modulated into a directed microwave beam, which is beamed towards designated receiving stations on the ground where it is converted back into electricity using rectennas (rectifying antennas).

5Materials Used
6Manufacturing / Creation Process

The manufacturing process involves creating highly specialized photovoltaic cells capable of operating in the harsh conditions of space. These cells are then integrated into large solar arrays, which must be robust enough to withstand launch stresses and long-term exposure to the vacuum of space. The entire system is designed for modular assembly to facilitate scalability.

7Build Process

The build process includes extensive testing on Earth before deployment, followed by assembly in orbit using robotic systems or crewed missions. Ground-based rectennas are constructed concurrently with the orbital components.

PART 3Market & Industry
9Companies Involved
CaltechESA

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10Estimated Costs

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11Case Studies

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PART 4Academic References
12Scientific Papers / White Papers

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13Patents

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14Glossary
photovoltaic cells
Devices that convert light directly into electricity
microwaves
Electromagnetic waves used for energy transmission
rectennas
Antenna systems designed to receive and rectify microwave or radio-frequency power
15References

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Related Technologies

Source: curated technology intelligence stream with tracked references.