# Leitnium (Formerly YouSolar)

> Leitnium, formerly YouSolar, is a Santa Clara-based clean-energy hardware company building the PowerBloc, a modular solar-plus-battery nanogrid that runs on a constant 400-volt DC architecture. Founded in 2010 by physicist Dr. Arnold Leitner, the company sells a plug-and-play private power plant that integrates solar panels, lithium-ion batteries, and optional grid or generator inputs into one intelligent, scalable system. The pitch is simple: give a home or small business its own always-on grid, so the lights never flicker even when the utility goes dark.

- **Founded:** 2010
- **Headquarters:** Santa Clara, California, United States
- **Founders:** Arnold Leitner (Founder & CEO)
- **Team size:** ~11 employees
- **Products:** PowerBloc, PowerBloc HVDC nanogrid (Leitnium)
- **Notable:** Named one of America's Top GreenTech Companies by TIME Magazine (2024), Selected among 12 companies globally to present at the Future in Review (FiRe) Annual Conference, One of the most-funded companies on StartEngine, raising roughly $6.5M from retail investors

## Products & services

- **PowerBloc** — A patented, fully-integrated solar-plus-battery nanogrid built on a constant 400V DC architecture. It combines solar panels, lithium-ion battery storage, and optional generator or grid inputs into one modular, scalable system that delivers both AC and DC power and keeps running seamlessly when the grid goes down.
- **PowerBloc HVDC nanogrid (Leitnium)** — Marketed under the Leitnium brand as the world's first commercially available High-Voltage Direct Current residential nanogrid, with intelligent energy management, remote monitoring, and panel-level MPPT.

## Achievements

- Named one of America's Top GreenTech Companies by TIME Magazine (2024)
- Selected among 12 companies globally to present at the Future in Review (FiRe) Annual Conference
- One of the most-funded companies on StartEngine, raising roughly $6.5M from retail investors
- Developed what it calls the first commercially available high-voltage DC residential nanogrid
- Secured the LEITNIUM trademark for its renewable-energy systems

## Latest updates

- **2024-11** — Rebranded from YouSolar to Leitnium, repositioning from solar-plus-storage toward full decentralized power infrastructure.
- **2024-09** — Named among America's Top GreenTech Companies by TIME Magazine.
- **2025-01** — Continued equity crowdfunding on StartEngine, cumulatively raising roughly $6.5M.

## Links

- Website: https://yousolar.com
- LinkedIn: https://www.linkedin.com/company/yousolar-inc
- Instagram: https://www.instagram.com/yousolar_inc/

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Profile page: https://yespress.io/leitnium-formerly-yousolar
Published by YesPress — https://yespress.io
Last updated: 2026-07-11