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Calistoga, Napa Valley, January 2022 – Castello di Amorosa, Dario Sattui’s authentically-built 13th century castle and winery, has just invested $1.4 million in a 450-kilowatt solar and battery microgrid. The massive 1,232 panel solar system was completed in January of 2022 and is situated on a slope that was significantly burned in the Glass Fire that hit the Napa Valley in 2020.
“This enormous investment is an important element of our commitment to become as self-sufficient as possible while minimizing our carbon footprint and helping with the climate change crisis. We expect this will offset our energy usage around 80%,” explains Georg Salzner, President, Castello di Amorosa.
Castello di Amorosa partnered with Centrica, Recolte Energy, and 127 Energy on the multiple components of this installation. 127 Energy designed the 556-kilowatt battery storage microgrid. Using advanced and remotely accessed power controls, the microgrid provides Castello di Amorosa with an independent power supply during frequent utility grid outages. During times of normal operations, the microgrid reduces utility energy charges and demand charges, resulting in significant operational savings for the winery.
“Due to fire risks and skyrocketing power prices, commercial business owners in California are taking matters into their own hands. Castello di Amorosa, Centrica Business Solutions, and Sungrow were great partners on this project and our collaboration exemplifies how innovative teams can solve daunting environmental and energy-related challenges,” said Mark Crowdis, CEO of 127 Energy. “The battery storage microgrid provides a striking juxtaposition of resilient, clean energy technology against the backdrop of historic castle grounds,” Crowdis added.
Other examples of Castello di Amorosa’s environmentally friendly programs and practices:
Castello di Amorosa owns and farms 130 acres in Napa, Sonoma and Anderson Valley.
The winery is one of Napa Valley’s most respected landmarks and welcomes visitors by appointment seven days a week: www.castellodiamorosa.com.
About Napa Green: The Napa Green 501c3 is a global leader in sustainable winegrowing, setting the highest bar for sustainability and climate action in the wine industry. Napa Green facilitates whole system soil to bottle certification for wineries and vineyards, and provides the expertise, boots-on-the-ground support, and resources to continually improve. Learn more at https://napagreen.org/participating-members/.
Anna Brittain
Napa Green
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We all know that sheep are the cutest but why are they in so many vineyards?
Cori Carlson, owner of @napapastureprotein shared the ecological goals of grazing a vineyard, along with this one key takeaway at our recent @napagreen workshop.
🐑 🐑 🐑
#woolyweeders #regenerativevineyard #soilhealth
Join us on April 9, 2026 @charleskrugwinery to explore climate smart opportunities, sustainable glass, closures and more ways to green your supply chain.
We will share case studies, hear about climate-smart and alternative packaging, clarify what materials are truly recyclable, and identify new ways to divert more waste from the landfill.
With speakers from Verallia, @naturalcorkcouncil, @cork_supply, Treasury Wine Estates, @freeflowwines, @revinobottles, @keystonecapsules, Wine Industry Zero Waste Collective, @naparecycling and more!
➡️ ticket link in bio!
#winebusiness #wineindustry #supplychainmanagement
Discover four exceptional wineries united by a commitment to sustainability, community, and thoughtful hospitality.
These wineries are not only @napagreen certified but also @bcorporation certified, and through their “B Collaborative” partnership this month, they are offering a special tasting experience: wine club members receive two complimentary tastings, and non-members can enjoy a two-for-one tasting.
Learn More by visiting these wineries.
@artesawinery
@cliffamily
@spottswoodewinery
@troisnoixwine
#winetasting #visitnapavalley
Learn why Natalie Bath, Winemaker at @ruddestate considers @napagreen an important part of their commitment of land stewardship.
#SoilHealth #WomenInWine #RegenerativeViticulture
@napagreen has had a number of growers looking for organic solutions to dealing with nematodes where vines are planted. Our partners at @lallemandplantcareusa have an OMRI approved biological solution.
Learn more in this short video!
#soilhealth #vineyardmanagement #wineindustry
Join us March 17th @grgichhillsestate to connect with cover crop expert Keith Berns, with @greencoverseed, and experienced viticulturists, to leans how you can incorporate soil health practices in your vineyard!
➡️ Registration link in bio.
#soilhealth #regenerativevineyard #covercrop
What is biochar and why is it so cool?
Hear from @napa.char to learn more.
#climateaction #soilhealth #biochar
🐝 “If you build it, they will hum” - Erin Arnsteen, Western Program Coordinator @monarchjointventure
We are grateful for everyone who attended our Biodiversity in the Vineyard workshop last week! It was an amazing day @grgichhillsestate filled with bees, birds, butterflies, a community passionate about biodiversity, and experts providing resources for building biodiversity in YOUR vineyard.
#regenerativeag #biodiversity #worldwildlife #regenerativeviticulture
Join us in congratulating Megan Scott (@love.dream.breathe), our Operations Director, on 6 years at @napagreen. Megan’s positive attitude and “can do” approach to problem solving has greatly contributed to the success of Napa Green and our members.
Thanks for your work and dedication to sustainability!
📸 @brianamarieweddings
📍 @trefethenfamily
#womeninwine #womeninstem #climateaction
Thanks to the @naparegister for publishing this Climate Connection contribution from @napagreen’s Vineyard Program Director, Ben Mackie (@soilrainandhope) highlighting the biodiversity @grgichhillsestate.
If you loved this article, you’ll love our Birds, Bees & Butterflies: Biodiversity in the Vineyard workshop happening today!
#climateaction #regenerativeag #regenerativeviticulture
Friday night dinner dilemma?
Order takeout from @southsidenapa using promo code DONATE and 20% of your order will be donated to @napagreen.
It’s a win: win! You get dinner and @napagreen gets funding to contribute our impactful climate action work in Napa Valley.
Order online or preorder your Fried Chicken Friday pickup for February 27, 2026. Don’t forget to pair it with Napa Green certified wine! 🍽️ 🍷
#dineanddonate #nonprofit #napavalley
Join us Thursday, February 26 to learn about biodiversity in the vineyard.
🍇 Ivo Jeramaz, Winemaker & VP of Vineyards and Production at @grgichhillsestate, will welcome us to the beautiful property and illustrate the various implementation of habitat diversity they have undertaken at the American Canyon ranch.
🍇 Jo Ann Baumgartner & Sam Earnshaw from @wildfarmalliance will provide insight on how to maximize bird habitat and establish hedgerows to support the local ecology.
🍇 Erin Arnsteen from the @monarchjointventure will outline how pivotal vineyard acreage can be to support the dwindling Western Monarch populations.
🍇 Cori Carlson, owner of @napapastureprotein, will explain the ecological goals of grazing a vineyard.
🍇 Ruby Stahel from the @naparcd will join us to discuss the various resources that the RCD has to support habitat enhancement on Napa properties.
🍇 @soilrainandhope from @napagreen will talk about bees!
➡️ Ticket link in bio.
#biodiversity #regenerativeag #regenerativeviticulture
Learn about the herd of cattle calmly grazing the vineyards @ruddestate, contributing to soil health and biodiversity, in our latest post from @soilrainandhope.
➡️ Link in bio.
#climateaction #regenerativeag #regnerativeviticulture #soilhealth
Thanks to @naparegister and @kcuz for this great article about the @regenerativeviticulture and @napagreen #OneBlockChallenge field day @celaniwines.
We had a great time engaging with attendees about opportunities to implement regenerative practices in their vineyards!
If you’re regenerative curious or want to learn more head to the link in our bio!
#climateaction #regenerativeviticulture
Congratulations on @napagreen Vineyard Certification to @shadybrookestatewinery!
Nestled in the picturesque heart of Coombsville, Shadybrook Estate, has shown a deep commitment to regenerative viticulture and climate action. Visit to see the natural beauty of this hidden gem.
#climateaction #regenerativeviticulture #napagreen
We love the biodiversity in this @grgichhillsestate American Canyon Vineyard!
Come learn how to integrate biodiversity in your vineyard on February 26 at this workshop with @napagreen, @grgichhillsestate, @wildfarmalliance, @monarchjointventure, @napapastureprotein and @naparcd.
➡️ Ticket link in bio.
#Biodiversity #RegenerativeAg #RegenerativeViticulture
