net-zero

adj

1. Resulting in neither a surplus or deficit because gains and losses cancel out.

   “net-zero carbon emissions”

   “"We're on an important journey - to support the Government's target of being net-zero by 2050, to help the country build back better as we recover from the pandemic, and to help passengers and freight users make the greenest choices they can."”

2. Of a building or system, generating as much energy through solar, wind, and other renewable resources as it uses from the electricity network.

   “Heath's home is defined as net-zero, which means it produces as much energy as it consumes throughout the year.”