Drone as Lightning Rod: Japan Success
- HAMADA CITY, Japan – In a groundbreaking experiment, researchers in japan have successfully triggered a lightning strike using a specially designed drone. The achievement, announced by NTT, a...
- The experiment took place in the mountainous region of Hamada City, Shimane Prefecture.
- Despite its protective function, part of the drone's cage melted upon impact.Researchers plan to reinforce the cage to withstand currents up to 150,000 amps, considerably exceeding the expected...
Drone Triggers Lightning Strike in Japan, Offering New Protection Possibilities
Table of Contents
- Drone Triggers Lightning Strike in Japan, Offering New Protection Possibilities
- drone-Triggered Lightning: Your Questions Answered
- What happened in Japan involving a drone and lightning?
- Where did this experiment take place?
- How did the researchers trigger the lightning strike?
- What kind of drone was used?
- How does the drone’s protective cage work?
- did the protective cage withstand the lightning strike?
- What are the potential applications of this technology?
- How does this compare to traditional lightning protection?
- What kind of damage does lightning cause, and what are the costs?
- Were there any specific parameters during the test?
- What is NTT’s long-term goal with this technology?
- What are the next steps in this research?
- What are the key advantages of using drones over traditional methods?
HAMADA CITY, Japan – In a groundbreaking experiment, researchers in japan have successfully triggered a lightning strike using a specially designed drone. The achievement, announced by NTT, a Japanese telecommunications company, could pave the way for innovative lightning protection systems and potentially even the harnessing of lightning’s electrical energy.
The experiment took place in the mountainous region of Hamada City, Shimane Prefecture. researchers flew the custom-built drone into a storm cloud, intentionally inducing a lightning strike. The drone features a unique lightning protection cage designed to shield its sensitive electronic components from direct strikes. This metallic cage redirects electricity around the drone’s internal systems, neutralizing strong magnetic fields.
Protective Cage Sustains Damage
Despite its protective function, part of the drone’s cage melted upon impact.Researchers plan to reinforce the cage to withstand currents up to 150,000 amps, considerably exceeding the expected intensity of natural lightning strikes. The cage’s effectiveness could allow for the use of commercially available drones in future experiments.
Potential Applications for Drone Lightning Rods
Researchers envision drones acting as lightning rods in various scenarios, including outdoor events, urban areas, and the protection of telecommunications infrastructure and wind farms. Traditional lightning rods have limited range and installation options. Lightning damage in Japan alone results in losses estimated between 100 billion and 200 billion yen (approximately $610 million to $1.22 billion USD) annually.
Tethered System Facilitates Controlled Strike
The researchers employed a method of connecting the drone to the ground via a conductive wire to actively trigger the lightning strike. A high-voltage switch on the ground creates a rapid change in the electrical field surrounding the drone when activated, increasing the likelihood of a strike.
During the practical test on dec. 13,2024,the team launched the drone,equipped with the protective cage,to an altitude of 300 meters as a storm cloud approached and the electrical field strength on the ground reached a critical level. Upon activating the switch, a voltage exceeding 2,000 volts was measured between the wire and the ground moments before the lightning struck.

Future Research and Development
NTT intends to further refine the technology to improve the reliability of drone-based lightning solutions. Future research will focus on accurately predicting lightning strike locations and gaining a deeper understanding of lightning mechanisms. The company’s long-term goal is to not only trigger and control lightning but also to harness its energy for practical applications.
drone-Triggered Lightning: Your Questions Answered
What happened in Japan involving a drone and lightning?
In a groundbreaking experiment, researchers in japan successfully triggered a lightning strike using a specially designed drone. This achievement,announced by NTT,a Japanese telecommunications company,has opened up possibilities for innovative lightning protection systems and,possibly,harnessing lightning’s energy.
Where did this experiment take place?
The experiment occurred in the mountainous region of Hamada City, Shimane Prefecture, Japan.
How did the researchers trigger the lightning strike?
Researchers flew a custom-built drone into a storm cloud too intentionally induce a lightning strike. A conductive wire connected the drone to the ground. A high-voltage switch on the ground was activated, creating a rapid change in the electrical field around the drone, increasing the likelihood of a strike.
What kind of drone was used?
The drone was specially designed with a lightning protection cage to shield its sensitive electronic components from direct strikes. This metallic cage redirects electricity around the drone’s internal systems, neutralizing strong magnetic fields.
How does the drone’s protective cage work?
The drone’s protective cage acts like a Faraday cage. It’s designed to redirect the electrical current of a lightning strike around the internal components, protecting them from damage.
did the protective cage withstand the lightning strike?
While the cage fulfilled its protective function, part of it melted upon impact. Researchers plan to reinforce the cage to withstand more intense currents.
What are the potential applications of this technology?
Researchers envision the technology being used in several ways:
Drone Lightning rods: Drones could act as lightning rods in various scenarios, including outdoor events and urban areas.
Infrastructure Protection: Protecting telecommunications infrastructure and wind farms.
Harnessing Lightning Energy: The long-term goal is to not only control lightning but also to harness its energy for practical applications.
How does this compare to traditional lightning protection?
Traditional lightning rods have limitations in range and installation options. Drone-based systems could potentially offer more flexibility and wider coverage.
What kind of damage does lightning cause, and what are the costs?
Lightning damage, notably in Japan, results in substantial losses. Losses are estimated between 100 billion and 200 billion yen (approximately $610 million to $1.22 billion USD) annually.
Were there any specific parameters during the test?
Yes, the test on December 13, 2024, involved:
Launching the drone to an altitude of 300 meters.
The electrical field strength on the ground reaching a critical level.
A voltage exceeding 2,000 volts being measured between the wire and the ground moments before the strike.
What is NTT’s long-term goal with this technology?
NTT’s long-term goal is to not only trigger and control lightning but also to harness its energy for practical applications.
What are the next steps in this research?
NTT intends to refine the technology to improve the reliability of drone-based lightning solutions. Future research will focus on:
Accurately predicting lightning strike locations.
Gaining a deeper understanding of lightning mechanisms.
What are the key advantages of using drones over traditional methods?
| Feature | Traditional Lightning Rods | Drone-Based Lightning Systems |
| ——————– | ———————————————- | ——————————————————– |
| Range & Coverage | Limited | Potentially Greater |
| Installation | Fixed,Often Requires Meaningful Preparation | Potentially More Flexible,Remote Deployment |
| Protection | Protects a fixed radius | Can be dynamically positioned to improve protection. |
| Cost | Relatively inexpensive, but installation costs may vary.| Cost may be higher up front,but long-term cost may be lower |
