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Our buildings and God’s Creation: a Net-Zero energy project

Our church community has been working towards being “green” since well before our Net Zero building project. Our Board of Christian Action had taken many steps toward becoming a “Green Church,” following guidelines of the Environmental Ministries of the United Church of Christ. We were already using recycled paper products, purchasing sustainably grown coffee, shifting landscape care to organic methods, composting when possible, and recycling materials.

When we began looking at how to take advantage of our south-facing roof, a Green Task Force formed. This team and our Board of Trustees wanted to set an example and show leadership in our efforts to address climate change and reduce our carbon footprint. Members of the congregation have long considered care for the environment as a core faith practice.

The first step toward becoming “green” was replacing every light bulb with LED bulbs to reduce our electric needs.

We needed to figure out how to upgrade the exterior and interior lighting, including cove lighting in the very high sanctuary ceiling (requiring several tiers of scaffolding). Some of the lighting fixtures and dimmers were no longer code compliant. We did not have motion-sensitive lighting in spaces that lent themselves to these items like restrooms, hallways, and basement. By retrofitting the items mentioned, we were able to model the cost savings in electrical use based on replacing every incandescent, inefficient bulb with LED bulbs and we were able to apply for incentives. The payback for the lighting alone was less than seven years and so our Trustees agreed to proceed.

The second step was installing a solar array and converting from oil burners to electric heat pumps.

Once the electric needs for lighting were reduced greatly, we looked to the heat in the building which consisted of two outdated oil furnaces, oversized and inefficient. We looked at converting the HVAC systems to electric heat pumps. When that was modeled, the size of a solar array able to be placed on the south-facing roof would furnish all the electric needs of the building! We were on our way to becoming a “Net Zero” building.

Our church’s Meetinghouse, built in 1800, is in a historic district where any change to the outside of a building must go through an approval process. Prior to our project, there had never been a request for solar panels submitted to the Historic District Commission which is always the first step before securing a building permit. Since the church building has very little land, there was no opportunity to install ground-mounted panels that wouldn’t be seen, so rooftop panels were our only choice.

The existing roof, asphalt shingles, needed replacing before solar panels could be installed. The challenge was to present materials for a new roof and unobtrusive solar panels that would be approved. The process took months and involved gathering information from the National Trust for Historic Preservation as well as State of Connecticut resources about solar panels in a historic district or on a historic building.

We were also able to model the cost savings of converting to electric heat pumps and eliminating the use of oil. Much of this was incentivized by our utility company. Including the incentives, the payback for this project was substantially less than 25 years. When we looked at the yearly costs of electricity, oil, maintenance of two oil burning furnaces, maintenance of a chimney, and the huge cost of emitting carbon, our finance committee found that the return on an investment in solar, plus the yearly ZREC Zero-Emission Renewable Energy Credits (ZREC) payments would be more beneficial than keeping funds in an investment account. We get one REC every time the sun produces one kilowatt-hour (kWh) of energy. Our yearly cost for electricity was budgeted at $6,000 and oil, $7,000 and now that expense is eliminated. We expect to receive close to $4,500 per year in ZRECs for the next 15 years.

The solar panels were installed and went live in March 2022. Until the heat pumps were operational and using electricity, any excess electricity generated by the new panels was “banked” to be used with a year.

The last step, an Electric Vehicle Charger

The last step of the project was installing a two-port Electric Vehicle charger, powered by our solar array. Our congregation paid for the installation (less
generous incentives.)

Our EV charger is the first one in the Town of Salisbury. With input and research done by our consultants, MHR Development, the Town has approved a regulation language change through the Planning and Zoning Department to accommodate for EV chargers throughout the Town.

By completing this project and becoming “green”, the Congregational Church of Salisbury is removing a whopping 87 TONS of carbon emissions each year. We’ve also been recognized as one of 16 National Runners Up in Interfaith Power and Light’s Cool Congregations Annual Award for Leadership and Sustainability.

“Greening the Church” begins
January, 2020: The Board of Christian Action begins to assess the Church’s environmental impact. A newly formed “Green Task Force” takes steps to reduce, reuse, and recycle products used by the church office, kitchen, toilets, etc.
Early steps

April 2020: The Church engages MHR Development as the project consultant and begins planning to convert the Meetinghouse and Parish House to “net zero.” First steps: to conduct an energy audit, and apply for Renewable Energy Credits and Net Metering.

Let There Be Light

June — October, 2020: Indoor and outdoor lighting fixtures are converted to LED, and controls for lighting are installed. Church receives financial incentive for lighting improvements.

How much light?

November, 2020: We review solar shading conditions, to calculate the scope of the photovoltaic panel array.

How much power?

January — March, 2021: MHR Consulting plans and reviews our heating, cooling, and ventilation needs. We explore options for fresh air handling, roofing, and solar panel installation.

Behind the scenes work

April — May, 2021: Potential contractors come to Salisbury for site visits. MHR Consulting and Church trustees develop budgets for roof replacement, solar installation, converting to heat pumps, and removing oil burners.

More Light!
More Light!

May, 2021: Replacement of cove lighting in the Meetinghouse requires filling the room with scaffolding for a week.

Permissions sought and granted

June — October, 2021: We apply for and receive a certificate of appropriateness from the Salisbury Historic District Commission for both metal roofing and solar panels. We file for our building permit and engage contractors.

Sharing Our Story

November, 2021: Church hosts a public, round table discussion (via Zoom) of what it means to be “Net Zero.”

Roofing and more behind the scenes work

December, 2021: The Meetinghouse and Parish House roofs are replaced with standing seam metal roofing, with minor repairs completed after removing the old roof.
Solar design documents are developed.
An agreement for Utility Rebate Incentives is put in place.

Solar Connection
Solar Connection

January — March, 2022: The solar panels are installed and connected to the electrical grid. The panels go “live,” generating power.

Essential workers

March — September, 2022: The HVAC contractor and mechanical engineer are engaged.

Permissions & planning continue

March, 2023: We receive a building permit for the HVAC project. MHR Consulting begins planning for an electric vehicle charging station.

A modern “hitching post”

April, 2023: The Salisbury Historic District Commission approves the Church’s plan for an Electric Vehicle Charging (EVC) station, the first in a public area in Salisbury.

Finally!

May — December, 2023: heat pumps are installed in the Parish Hall; the ERV (air handler) is installed; oil burners are removed; the hot water
heater is converted; the HVAC retrofit is completed; asbestos abatement in the attic of the Parish Hall is completed; and we make final plans and permitting for the EVC.

A “Cool” Congregation

January, 2024: The Church receives awards from Interfaith Power and Light for the projects undertaken.

Sharing the Power
Sharing the Power

April, 2024: The electric vehicle charging (EVC) station is installed, connected, and available to the public.