Patent-pending subsea servicing & maintenance
What goes down must come up.
Equipment on the seafloor has always needed a ship & crane and/or an ROV to service at depth. AquaAether provides a cost effective & energy efficient solution allowing for maintenance on the surface.
0 m · Waterline
Descend
Deep-sea desalination is no longer theoretical.
The first subsea plants are producing water. At depth, the ocean supplies the pressure that land plants pay to create.
Flocean Zero · Mongstad
~500m
Operating depth off Mongstad, producing water since Nov 2024.
Flocean, Jun 2025
OceanWell · Water Farm 1
6
Agencies joined Las Virgenes MWD on a plant of up to 60M gallons a day.
OceanWell, Aug 2025
Land seawater RO · kWh/m³
2.5–4.0
The energy a land plant spends making pressure. At 400 m, the ocean supplies it.
Kim et al., Applied Energy, 2019
At 400 metres you may as well be on the moon.
The pressure that makes depth valuable makes plant & equipment unreachable.
No diver works hereNot to scale
This is how a module is serviced today.
01
No diver can work there.
Routine work at this depth is remote, or it does not happen.
02
ROVs cost more than what they fetch.
Every service or retrieval becomes a mobilisation.
03
Every intervention needs a vessel, a crane and a weather window.
And each one is costly.
One solution. Anything that works on the seafloor.
If it goes down, it should come up.
- Patent-pending
- Filing covers desalination
- Removable by design
- Serviced on the surface or on land, in daylight
Our platform is not lifted.
It returns.
Plant & equipment anchor to a platform on the seabed. When maintenance and servicing is required they return to the surface on their own.
What goes down must come up.
AquaAether is talking to investors, operators and engineering partners.
or write to hello@aquaaether.com