My Search Alerts

The Solutions Explorer lets you create alerts that match your needs. You can create several alerts and you will receive a notification each time a new Solar Impulse Efficient Solutions is labelled and matches your filters.

Your Search Alerts will show up here.


Sign in to create alerts for your filters and search terms.

Sign in

Don't have an account?

Sign up

My Favorites

The Solutions Explorer lets you shortlist your favorite solutions.

Your favorites will show up here.


Sign in to add a solution to your favorites.

Sign in

Don't have an account?

Sign up

Investment Hub Access

Access exclusive opportunities for Investor Members Only

The Investment Hub is a platform by the Solar Impulse Foundation that connects innovators with investors to fund scalable and sustainable solutions. Through tailored matchmaking, e-pitches, and a collaborative digital environment, it helps drive impactful innovation forward.


Sign in to explore a world of dynamic and high-potential investment opportunities.

Sign in

Don't have an account?

Sign up

Contact the Solution's Provider

You can contact each Solution’s Provider through the « Solutions Explorer » contact form. The team will also follow up to make sure you’ll have an answer to your request.

Your contact form will show up here.




Sign in to contact the Solution's Provider

Sign in

Don't have an account?

Sign up

Contact the innovator

You can contact each innovator through the RUNWAY contact form. The team will also follow up to make sure you’ll have an answer to your request.




Connect with the innovator commercializing





My Account

Sign in

Don't have an account?

Sign up

DRH4

High voltage transformer oil leak smart management system with early waring alarms

November 2019
August 2025

DRH4

High voltage transformer oil leak smart management system with early waring alarms

  • World Alliance Member
  • Featured Solution
  • Labelled Solution
Label Date August 28, 2025
By Voltra
From Canada
Maturity stage TRL 9 / CRI 3-4 - Commercial Scale Up / Multiple commercial Applications

The intelligent technology consists of a wide range of instrumentation, including early detection of oil leaks. All major components are made from green Canadian aluminum. The system operates as well in winter than summer thanks to efficient heating devices. Rain water and oil and captured and driven to the instantaneous water-oil separator. Water is filtered and directly release in the ground without any hydrocarbons. Oil is recovered and strode in a temporary oil tank waiting to by refilter and reused.

The Environmental Benefits

  • The DRH4 is the only smart monitoring system for transformer oil leaks with early stage detection and distant alarms.
  • The DRH4 is the first system all category able to separate water and oil instantaneously and to release water with undetectable hydrocarbons.
  • The DRH4 is the only system able to capture oil and manage water-oil separation at -40°C.
  • By capturing all hydrocarbons, we contribute to eliminate 100% ground contamination in electric substations.
  • By releasing 100% clean rainwater into nature, we contribute to keep underground's water clean and save for all living beings.
  • By replacing concrete solutions, we can replace one of the most air polluting industries, namely cement production plants.

The Financial Benefits

  • The DRH4 is 5 times cheaper than concrete alternative and give 10 times more benefits.
  • If the system is used on an active leaking system (around 1 oil drop every 6 seconds) the time to get a return on the investment is evaluated in less than 3 weeks considering cost avoided.

Target client profile

Benefits

Activity Region

  • Headquarters
  • Activity

Company Profile

Voltra

Voltra Technologie develops innovative specialized products for high-voltage stations and wind farms.

Headquarters Alma, QC G8B 4Y7, Canada
Type Startup or self-employed
View company profile Solution website

Share

Contact the Solution Provider Add to Favorites

The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Voltra has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.