We had so much fun at Greenfest 2017!

Bring the kids for a bee-themed Pollinator Parade, eco-arts & crafts and more! Learn more here!

Check out our focus on the food system here – with a gleaned foods exchange, smoothie bike, and demos on composting and food preservation.

Take a brand new electric or hybrid vehicle for a spin at our Kia ride-and-drive!


Our exhibitors always bring their A-game. Join us to learn more about:

Energy & Climate Change

  • Heat pumps for home and business heating and cooling!
  • Learn about making your home more energy efficient
  • Solar electricity panels on display
  • Learn how to sign up for Maine Green Power to use electricity generated from renewable sources in Maine
  • New Technology videos on display
  • Efficiency Maine Case studies
  • How you can take action on climate policy

Waste & Recycling

  • Biodiesel demonstration and grease recycling
  • Landfill waste reduction


  • History and ecology of the Presumpscot River and ways you can interact with it
  • Water Education Toolkit
  • Non-Point Source pollution demonstration with the Maine Water Environment Association
  • Learn how filter feeders clean water and bio accumulate toxins

Land & Habitat Conservation

  • Maine Audubon interactive crafts and lessons!

 Farm & Food

  • Check out our Focus on the Food System – a whole series of interactive learning.

Products & Services

  • Sustainable Household product demonstrations
  • Sustainable heating and cost savings demonstrations
  • Sample natural and locally sourced remedy products
  • Get connected to climate solutions projects in your area
  • Hands on sustainable craft table
  • Discussions on the power of buying local and sustainable products
  • Cloth diaper, baby wearing and other natural parenting items demonstrations

Check out the full roster (updated weekly) here.


10:30 am – Living the Dream, Building Green! by Brightbuilt Home

11:00 am – GOMAINE – Rewarding You for Your Green Commute! by Go Maine

11:30 am – You’ve Got the Power! Food Scraps to Energy with Anaerobic Digestion by Agri-Cycle

12:00 pm – Carbon Fee & Dividend: A Climate Solution All Can Agree On by Citizens Climate Lobby

12:30 pm – Know Your Power: Reducing Carbon Impacts with Renewable Energy Generated in Maine by Maine Green Power

1:00 pm – Facts for the Future: Clean Energy Transition by ReVision Energy

1:30 pm – Changing the World One Blue Bottle at a Time by Neal’s Yard Remedy

2:00 pm – The Untold Story of Water by Golden Ratio Products

2:30 pm – The 3 C’s of Winter: How Reducing Your Home’s Carbon Footprint Lowers Energy Costs & Increases Comfort, by Evergreen Home Performance

3:00 pm – Utah’s Public Lands Belong to Maine & All of America by Southern Utah Wilderness Alliance



You’ll be grooving all day long to the sweet sounds of:

Copyright 2014 Portland Greenfest.   Website Design by Alpine Design Works.