The Pacific Ocean Neutrino Experiment (P-ONE) is a proposed large-volume neutrino telescope
in the Northeast Pacific Ocean, off the coast of Vancouver Island, Canada. With more than one
cubic-kilometer of instrumented deep sea volume, P-ONE will target measuring high-energy neutrinos to shed light on the nature of astrophysical accelerators and the cosmos. With low expected
scattering in the deep ocean, water-based detectors theoretically allow for sub-degree event resolution but carry various challenges. With changing ocean currents, and an abundance of organic
matter, the detector geometry, water optical properties, and bioluminescent light background vary
with time. This dynamic environment of the deep ocean requires rugged detector technologies
and multiple, precise calibration and monitoring systems in order to enable and maintain the detector’s full scientific potential. In cooperation with Ocean Networks Canada (ONC), the P-ONE
collaboration aims to develop long-lived, deep-sea detector systems which target continuous and
precise monitoring to overcome these challenges. The first mooring of P-ONE will be deployed
between 2024 and 2025, and will provide first insights into the performance of the developed detector systems. Following this first step, this work summarizes the ongoing efforts of the P-ONE
collaboration targeting the development, simulation and operation of the first cluster of strings,
and will present the expected performance of the calibration systems and physics potential.