---
title: "Energy from Space: Microwaves vs. Lasers in the Race for Clean Electricity"
description: "Collecting solar energy in space has moved to practical trials. 🛰️ Scientists are comparing microwave transmission and laser technologies, trying to solve the climate problem and power lunar bases. 🌍⚡"
date: 2026-06-29T15:16:00.000Z
lang: en
url: https://xab.info/en/posts/energy-from-space-microwaves-vs-lasers
tags: []
publisher: "XAB.info"
---

# Energy from Space: Microwaves vs. Lasers in the Race for Clean Electricity

![Blue laser beams converging at center on black background — visualization of space-to-Earth energy transmission](https://xab.info/media/2026/06/29/energiya-iz-kosmosa-mikrovолny-protiv-lazerov/energiya-iz-kosmosa-mikrovолny-protiv-lazerov-1.webp)

The concept of collecting solar energy in open space and subsequently transmitting it to Earth has moved beyond the realm of science fiction to the stage of practical trials. Scientists and engineers around the world are focusing on developing methods to deliver clean energy through the atmosphere using two fundamentally different technologies: microwave radiation and infrared lasers.

### Microwave Transmission: Wave Physics vs. Logistics

The first and most studied direction is energy transmission via microwaves. This technology is based on the physical phenomenon of wave interference. Researchers model the system on the principle of wave interaction on water: by precisely controlling radiation sources, they cause waves to amplify each other in a specific direction. This allows for minimizing signal loss when passing through the atmosphere and ensures continuous, uniform delivery of energy to ground-based receiving stations.

However, scaling this technology faces serious obstacles. The US Department of Energy notes that creating, launching into orbit, and precisely positioning such satellites require colossal investments. Furthermore, there is a logistics problem: stations are located on remote orbits, making current technical maintenance or repair practically impossible in the event of a breakdown.

### Laser Alternative: Achievements and Limitations

As an alternative, the application of infrared laser beams is being explored. In this segment, the company Overview Energy has demonstrated significant progress. In 2025, it successfully conducted an experiment transmitting an energy beam from an aircraft to a ground receiver. Laser systems are considered safer compared to constant microwave radiation, and the installations themselves can be cheaper and easier to maintain.

The main limitation of current laser technologies is the inability of near-infrared lasers to penetrate dense cloud cover. To overcome this barrier, the system is forced to rely on a complex network: satellites and a series of sky-based receivers must catch the laser beam and redirect it to the final ground receiver. This inevitably increases the number of moving parts and complicates the system architecture.

Nevertheless, according to representatives of Overview Energy, laser systems possess high scalability and allow for flexibly expanding or narrowing the beam as needed, adapting to requirements.

### Global Context and the Future of Energy

The development of space-based generation technologies is in demand against the backdrop of growing concern regarding climate change and the destructive impact of fossil fuels on the planet. Moreover, space agencies plan to use solar energy to ensure the autonomy of future lunar bases, as countries strive to explore the lunar south pole in search of water.

Regardless of the chosen transit method—whether microwaves or lasers—the key aspect remains the physical principle: the direct production of electric current used by humanity occurs exclusively at the moment the energy reaches the planet's surface.