What is a pad mounted transformer (PMT)?
They are those big green metal (debatingly unsightly) utility boxes containing electrical equipment that changes high-voltage electricity to lower voltages. Sometimes found on public property, below the ground or on the pavement, they are also popping up on private residential properties.
Pad mounted transformer diagram (source: FortisBC)
Vancouver’s Renewable City Strategy, first released in 2016, stated two goals for the future of electrification in the city:
Target 1: Derive 100% of the energy used in Vancouver from renewable sources before 2050
Target 2: Reduce greenhouse gas emissions by at least 80% below 2007 levels before 2050
These goals, while inspiring for a greener and more sustainable future, pose very present problems for homeowners and developers building new housing.
Currently, the cost to install a PMT is the responsibility of the homeowner or developer, as infrastructure upgrades are not in place with the City. This is not only a financial cost (anywhere from roughly $50,000 to $150,000) but is a loss of the Owner’s use of their own land as the minimum size of the box is 12’ x 12’.
While BC Hydro has provided some useful tips for landscaping around a PMT, it cannot ignore the aesthetic and functional limitations that the box’s presence creates.
(source: BC Hydro)
With the province anticipating over 1 million more new residents by 2050, the current infrastructure is lagging behind on both current and future electrical needs. With new Step Code upgrades for heating and hot water also coming into effect, the need to look ahead to more viable solutions is more important than ever.
What does the path forward look like for the PMT?
In our opinion the public authorities such as BC Hydro, FortisBC and the City of Vancouver should put considerable effort into finding more spaces for a sufficient volume of PMTs to meet future energy needs, such as underground, on power poles or on public property, along with absorbing some of the infrastructure upgrading costs so the burden of capital and space is not solely on the homeowner or developer with the goal of helping to reduce the cost of housing and make better use of the already limited private space.
Have a question about energy efficiency for your home?
Reach out by phone at 604. 677. 7877 or email at info@architrix.com
*As per FortisBC: Like any other piece of important utility equipment, they are locked and should be left alone – don’t let children play on or around them. If you see a transformer that is unlocked or has its doors open, note the identification number on the side and call us at 1-866-436-7847. Keep everyone a safe distance away, at least 10 metres (33 feet, about the length of a school bus).