# Sustainability | Family Run Winery| Trefethen Family Vineyards

https://www.trefethen.com/learn/philosophy/sustainability

> Marketing / informational content published by the winery describing its own practices and recognitions — attribute claims to Trefethen Family Vineyards and treat them as self-reported. Use the page as a primary source for the winery's stated programs and certifications but verify independently for third-party confirmation when needed.

## Summary

Trefethen Family Vineyards describes its sustainability approach across vineyard and winery operations, covering biodiversity, carbon capture and sequestration efforts, soil health and composting, water conservation and reuse, energy reduction and on-site solar, waste diversion, responsible sourcing, employee programs, and certifications and awards recognizing these efforts.

## Audience

general

## Prompts this page answers

- What sustainability practices does Trefethen Family Vineyards describe on their sustainability page?
- Has Trefethen Family Vineyards received any sustainability awards or certifications?
- How does Trefethen manage water and energy conservation on the estate?
- What carbon capture work has Trefethen reported doing in their winery cellar?

## Purpose

Educate readers about Trefethen Family Vineyards' sustainability practices and to document certifications and awards that recognize those efforts.

## Highlights

- Trefethen received the California Green Medal Environment Award for 2022.
- Pilot carbon-capture project in the cellar with Earthly Labs during the 2021 harvest; the winery states it was the first to use this technology in a winery setting.
- Both Main Ranch and Hillspring vineyards certified Napa Green Vineyard since 2006; winery certified under Napa Green Winery (Trefethen was the 15th Napa Valley winery to be certified).
- Certified California Sustainable Vineyard & Winery: Trefethen was certified in 2012.
- Estate offsets 100% of electricity usage with on-site solar arrays and pursues energy- and water-conservation measures.

## How to cite

Trefethen Family Vineyards — Sustainability page (https://www.trefethen.com/learn/philosophy/sustainability).

## Publisher

**Trefethen Family Vineyards** — A Napa Valley winery; contact details and address are shown in the page footer.

## Topics

- Trefethen sustainability
- carbon capture winery Earthly Labs
- Napa Green Vineyard
- Certified California Sustainable Vineyard & Winery
- water conservation Napa winery
- vineyard biodiversity
- composting pomace cover crops

## Key entities

- **Trefethen Family Vineyards** (organization): Napa Valley winery and the page publisher. — https://www.trefethen.com/
- **Earthly Labs** (organization): Named as the provider of the proprietary carbon capture technology used in a 2021 pilot.
- **California Green Medal Sustainable Winegrowing Leadership Awards** (organization): Awarding body for the 2022 Environment Award cited on the page.
- **Napa Green (Napa Green Vineyard / Napa Green Winery)** (organization): Regional certification programs mentioned; Main Ranch and Hillspring certified since 2006.
- **Certified California Sustainable Vineyard & Winery** (organization): Statewide certification program; Trefethen was certified in 2012.
- **BRIT (Botanical Research Institute of Texas)** (organization): Gives the International Award of Excellence in Sustainable Winegrowing, which Trefethen received as the third recipient.
- **Hailey Trefethen** (person): Named staff member who manages certifications; quoted on the page.
- **Jon Ruel** (person): Quoted on the page about the estate as an ecosystem.
- **Gene Trefethen** (person): Named on the page in relation to water-conservation infrastructure.
- **Yvon Chouinard** (person): Quoted praising Napa Green (identified as environmentalist and Founder of Patagonia on the page).

## Metadata

- Type: article