Household Hazardous Waste Day

May 12, 2018

Bring the household hazardous waste products a to the Department of Public Works facility at 680 Peverly Hill Road for safe disposal between 8 a.m. and noon. Residents must show proof of residency. Bring your unwanted household chemicals to Portsmouth's Dept of Public Works for safe disposal


Portsmouth Celebrates Earth Day and Arbor Day

April 22, 2018

*April 24, 2018 Update: The entire supply of compost bins are now gone.

As we approach Earth Day this Sunday, April 22nd, the City of Portsmouth continues to work to make food waste composting easier for residents.


Public Meeting to Review the Climate Change Vulnerability Assessment on Historic Portsmouth

February 22, 2018

On Thursday, February 22nd at 6:30 p.m. in Council Chambers, the Historic District Commission will be hosting a presentation from the Planning Department to share with the community details of work that has been undertaken to assess the potential risks and impacts from sea level rise and/or coastal flooding on the landscapes, buildings, and structures within Portsmouth’s Historic District.


Mayor Blalock Declares October 5th as Energy Efficiency Day

October 5, 2017

Mayor Jack Blalock has declared October 5th to be Energy Efficiency Day in Portsmouth, New Hampshire. Portsmouth now joins a nationwide network of energy efficiency groups and partners who are celebrating the nation’s second annual Energy Efficiency Day.

For Mayor Blalock, it is important to further unite the community in the City’s sustainable efforts. This action to officially recognize Energy Efficiency Day complements ongoing initiatives by the City and invites residents to celebrate more eco-friendly practices.


Portsmouth LED Street Light Project 95 Percent Complete

September 8, 2017

Since April, the Department of Public Works has been working with Eversource and Affinity LED Lighting to assist in converting all of its high pressure sodium (HPS) street lights to Light Emitting Diode (LED) lights. With this citywide implementation, the City will experience further reductions in energy consumption, costs and light pollution, along with improved visibility and safety on the roads.


City Hosts University of New Hampshire Sustainability Fellow

June 28, 2016

The City of Portsmouth is partnering with the University of New Hampshire Sustainability Institute’s (UNHSI) Sustainability Fellows program in hosting a Fellow that will be assisting with several City initiatives throughout the summer.

UNHSI’s Sustainability Fellowships pair outstanding students with challenging, important projects that will propel communities toward a low-carbon future. Sustainability Fellows each undertake tasks to meet challenging deliverables, and receive supervision, mentorship, unique networking and professional development opportunities.


Portsmouth Announces Plans to Upgrade City Street Lights with LED Technology

April 6, 2016

The Department of Public Works is beginning to install Light Emitting Diode (LED) street light technology in areas of the City as part of their efforts in reducing energy consumption throughout City facilities. Currently, three streetlights at City Hall’s upper parking lot have been upgraded with LED bulbs and controls as part of a testing pilot program to explore the efficiencies and benefits.