ZEPHYRA
SOLUTION 03
Wind Portfolio
Onshore and offshore fleets: nacelle sensors and atmospheric data turn wind speed into audited megawatt-hours, turbine by turbine.
AT A GLANCE 01
1,900
Turbines reporting nacelle-level output, onshore and offshore.
AT A GLANCE 02
31%
Average curtailment reduction once losses became attributable to a turbine and an hour.
AT A GLANCE 03
20 yr
Design life of the field hardware, matched to the asset it watches.
How it works
Built for the asset it watches
4.9
The measurement stack wasn’t just a dashboard — it was a scientifically grounded system built for our asset class.
Ingrid Halvorsen
COO, Norvind Energi
What we measure
Wind is the asset class where estimates hurt most. A turbine’s output depends on wind speed, direction, air density and the availability of the machine itself, and a single disputed month can stall a refinancing. Zephyra reads each turbine at the nacelle — power, rotor speed, pitch, yaw — and pairs it with met-mast and satellite atmospheric data.
The result is a per-turbine, per-interval record of what the machine produced and what the wind would have allowed.
How it works
Field units are rated for two decades in the nacelle, from Arctic onshore sites to North Sea platforms. Readings are signed at source and committed to the ledger over a resilient link, so a lost backhaul never becomes a lost interval.
Availability, curtailment and wake losses are attributed automatically, giving operators a defensible answer for every megawatt-hour that did not reach the grid.
What you get
Audited output every lender accepts without a side letter. Curtailment you can see, attribute and negotiate. And a fleet-wide record that makes a 640 MW portfolio as legible as a single turbine.
Capabilities
What comes with it
01
Nacelle-level sensing
Power, rotor speed, pitch and yaw read at every turbine, rated for twenty years in the field.
02
Atmospheric pairing
Met-mast and satellite data alongside each reading, so lost production is attributable to wind or machine.
03
Curtailment attribution
Every megawatt-hour that did not reach the grid is assigned a cause, a turbine and an hour.
04
Offshore-ready links
Resilient backhaul with store-and-forward, so a dropped connection never becomes a missing interval.
Proof in the field
See it working
Norvind cuts curtailment 31%
A 640 MW onshore fleet across northern Norway was losing output to curtailment nobody could attribute. Nacelle-level measurement made every lost megawatt-hour traceable to a turbine and an hour.
Asset
Delivered
Ingrid Halvorsen
COO, Norvind Energi
Helia Solar goes bankable
Helia's 1.2 GW solar portfolio needed performance evidence its lenders would accept without a third-party audit. String-level measurement, reconciled against irradiance, gave them a record that speaks for itself.
Asset
Delivered
Mateo Ferrán
Head of Asset Performance, Helia
Meridian Grid verifies at scale
A regional grid operator with 380 interconnection points was reconciling energy flows quarterly, by hand. Metering every hand-over to a single ledger brought settlement close to live and ended the arguments.
Asset
Delivered
Priya Raman
Director of Regulatory Affairs, Meridian Grid
Nordsee Delta proves 2.1 TWh
Three lenders, one offshore wind farm and no agreed production figure. Nacelle-level evidence committed to a shared ledger let Nordsee Delta prove 2.1 TWh of output to all of them at once.
Asset
Delivered
Marit Boeckmann
Head of Asset Management, Nordsee Delta
Aurora settles dispatch disputes
An offtaker and an operator disagreed about round-trip losses at a 480 MWh battery for eight months. Instrument-level dispatch data replayed from the ledger settled it in an afternoon.
Asset
Delivered
Tomas Ek
Director of Trading, Aurora Storage
Cascade Hydro becomes auditable
Ninety years of paper records and no way to prove any of it. Measuring every release at the gate turned a century-old hydro plant into an asset a regulator, and a lender, could audit.
Asset
Delivered
Priya Raghunathan
Compliance Lead, Cascade Hydro