Sustainability Office

The Sustainability Office undertakes initiatives designed to make Portland a vibrant, environmentally friendly community now and into the future. We collaborate with all departments to increase the efficiency of City operations and seek innovative approaches to improve municipal services. We partner with community organizations, citizens, and businesses working to conserve energy, reduce waste, and preserve our natural resources. We promote actions that will make Portland resilient in the face of a changing climate.

The office supports the Sustainability and Transportation Committee of the Portland City Council.

ALERT: Quarry Run Dog Park Road & Parking Lot Closure

Tuesday, November 13 from 8:30 AM  - 2:30 PM

Wednesday, November 14 from 8:30 AM - 2:30 PM

Thursday, November 15 from 8:30 AM - 2:30 PM

Central Maine Power will be constructing a power line between Ocean Avenue and the newly installed solar array on the Ocean Avenue Landfill on Tuesday, November 13 - Thursday, November 15.  To ensure public safety, the road to the dog park and the parking lot will be CLOSED to all traffic between 8:30 - 2:30 on those days.  Crews will be operating heavy equipment and hanging over 1800 feet of power cable.  They need complete access to the parking area to complete their work. We appreciate your cooperation!

Current Initiatives

LED Streetlight Conversion

The City has begun a major initiative to convert the existing streetlights to LED. The project will reduce electrical use for street lighting by 2.7 million kWh per year and contribute to safer streets by providing better quality light. Learn more about the project by visiting the project page.


Solar Power

Our climate action plan calls for the City to explore opportunities to produce renewable energy. As part of that commitment the City Council is building a 660 kW solar array on the closed landfill behind the Ocean Avenue Dog Park. It will be completed by the end of 2018.

We recently installed a solar array at the Riverside Golf Course that generates enough electricity to charge all of the golf carts used at the course.  You can follow this link to see how much energy it is generating in real time! 

Click here for the Ocean Avenue Solar page.


Riverside Golf Course PV Dashboard


Reducing the Use of Pesticides

On January 3, 2018, the City Council passed a pesticide ordinance that prohibits the use of most synthetic pesticides on public and private property. Beginning on July 1, 2018 it will take effect on City owned properties.  It will take effect for private properties on January 1, 2019.  The ordinance is designed to protect public health and the environment by reducing chemical inputs used for maintaining landscapes.  For more information about the ordinance please visit the Pesticide Ordinance page. The Sustainability Office will be providing staff support for the Pesticide Management Advisory Committee established by the City Council to provide guidance regarding the implementation of the ordinance.  You can visit the PMAC page here.

Waste Reduction and Recycling

The City has had great success reducing waste and increasing recycling. In 1998, crews delivered 23,000 tons of waste to ecomaine (then RWS) but less than 1,000 tons of recyclables. Now, we deliver only 9,5000 tons of trash to the facility and about 5,500 tons of recyclables. Our curbside recycling rate stands at 37%. The Sustainability Office recently led the effort to deploy wheeled recycling carts to every household in the City. The new carts hold four times more material than the old blue bins and have a lid that protects the recyclables from the weather. This has already led to a significant reduction in windblown litter. Learn more by visiting the Recycling web page.

In 2014 the City of Portland adopted its Green Packaging Ordinances, banning the use of polystyrene packaging and placing a $0.05 fee on disposable shopping bags. (Portland became the first municipality in Maine to adopt a bag fee.) These ordinances have led to more sustainable packaging for take out meals and beverages and have inspired shoppers to bring their own bags when shopping. Staff continue to provide information about these ordinances to communities in Maine and across the country.

Energy Benchmarking

On October 24, 2018 the Sustainability and Transportation Committee recommended an amendment to postpone the reporting deadline.  The full City Council will take up that amendment on November 19.


We can't track we we don't measure - so we are working to create energy performance benchmarks for all City of Portland buildings. As part of this effort we are working with the utilities and a Portland based sustainability consultant to streamline the reporting of data from the utilities to customers. The consultant will use the data to create dashboards that will allow us to see the energy performance of each of our facilities on a monthly basis.
In November, 2016 the City Council enacted an ordinance that will require the owners of commercial properties larger than 20,000 square feet and residential properties with more than 50 units benchmark their energy performance and report it to the City.  The first reporting deadline will be December, 2018.  We will be posting additional information and resources shortly on the Energy Benchmarking Ordinance page. You can view the ordinance text here.

For more information, visit the benchmarking page.

Resiliency Planning

The City Council recently committed to set the City of Portland on a path to reduce community wide greenhouse gas emissions 80% by 2050.  In order to reach this goal we will be collaborating with the City of South Portland to establish a climate action and adaptation plan that will help us reach that ambitious goal.  Staff members from both cities are currently working on an RFP to select a qualified consultant to assist us with this process.  We will have more information about this planning effort shortly.

In 2017 the City undertook a neighborhood scale resiliency project in Bayside.  As part of this effort the Sustainability and Transportation Committee received the final report from the Bayside Adapts study group during their meeting on October 18, 2017. The report includes important information that the City will need to prepare for rising seas caused by global climate change. This includes updated sea level rise projections synchronized to the City's mapping datum (NGVD 29), an analysis of existing stormwater infrastructure, and guiding principles for future planning work developed by community stakeholders. You can find a link to the report below.

The Bayside Adapts process also included a design challenge funded by a grant from the National League of Cities.  Five local design teams imagined what a future climate ready Bayside might look like.  Their designs show that a resilient neighborhood can be thriving and viable with creative interventions to address challenges such as rising seas and increasing amounts of stormwater.  See the designs on the design challenge web page.


Further Information