Power systems & high voltage
System architecture, high-voltage design, distribution, and protection coordination.
Independent engineering practice · Estonia
Power systems engineering,from concept to grid.
Electrical engineering and applied research for companies developing power and energy-storage technology — high-voltage, power electronics, and grid integration.
01 — About
An independent practice built around senior, hands-on engineering judgement.
Phasor Consult is an independent electrical engineering practice based in Estonia, working with clients internationally. The work covers power systems, high-voltage applications, power electronics, energy storage, and grid integration.
Engagements run the full path from concept to implementation — system sizing and design, technical analysis and modelling, applied research, and support during integration and testing. Each project is handled personally and directly, giving clients experienced engineering input without expanding their in-house team.
02 — Areas of work
Where the practice focuses.
01
02
Power electronics
Converter and power-stage design, sizing, and analysis for demanding applications.
03
Energy storage & supercapacitors
Storage sizing, characterization, and lifetime assessment across temperature and load.
04
Grid integration
Connection, synchronisation, and compensation for systems tying into the network.
05
Simulation & modelling
Circuit and system simulation, sizing tools, and technical documentation.
06
Applied research & R&D
Feasibility studies and applied-research collaborations on new power technology.
03 — Tools
Interactive engineering tools.
A growing set of calculators built from day-to-day engineering work. Each opens as a standalone app in a new tab.
01
DC fault simulator & fuse sizing
Computes prospective DC fault current and its transient from source voltage, resistance, inductance, and cable parameters, then checks it against a fuse curve entered as CSV points or picked from an uploaded datasheet PDF.
Open tool ↗
02
Busbar temperature under load
Estimates the steady-state temperature rise of a busbar at a given current from conductor cross-section, material, and cooling conditions — a quick thermal check during distribution and busbar design.
Open tool ↗04 — Industry note
E-STATCOM deployment status, mid-2026.
One unit is energized. Siemens Energy and TenneT brought the Mehrum installation online in mid-December 2025 — a roughly 300 MVA converter with supercapacitor banks rated for about ±200 MW of active power, transitioning from testing toward commercial operation over the following months.
Beyond that, the firmly contracted projects are still countable on one hand, and they are all German. TransnetBW ordered two Enhanced STATCOM stations from Hitachi Energy in February 2024, expected in service around 2026. 50Hertz signed in December 2024 for one Nidec Conversion E-STATCOM with supercapacitor storage at Malchow — 150 MW for 1.25 seconds, commissioning targeted for 2028. Three GE Vernova grid-forming devices in the same contract carry no storage in that scope.
Outside Europe, the most concrete move is a development agreement rather than a project award: Hyosung, Skeleton, and Marubeni signed an MoU in January 2026 for Korea's first E-STATCOM, with commercialization targeted for 2027 — a step earlier than the German contracts, with no substation or rating assigned yet.
| Project | Converter / operator | Status |
|---|---|---|
| Mehrum | Siemens Energy / TenneT | Commissioned, Dec 2025 |
| Two stations | Hitachi Energy / TransnetBW | Contracted, ~2026 |
| Malchow | Nidec / 50Hertz | Contracted, 2028 |
| Korea (first) | Hyosung · Skeleton · Marubeni | Development MoU, target 2027 |
The demand signal is a different order of magnitude. TenneT alone estimates around 30 E-STATCOM facilities needed across Germany, with roughly 70 STATCOMs in total across the four German transmission operators, who are now jointly publishing standard E-STATCOM ratings for new projects. The US is still essentially pre-market — CAISO and PJM reported in early 2025 that they had not yet seen the technology on their networks.
Two patterns follow. The converter makers — Siemens, Hitachi, GE, Nidec, now Hyosung — are the parties that specify and buy the storage, while transmission operators procure complete projects. And the field is widening: a decade ago STATCOM without storage sat with a handful of global players, and the supercapacitor variant is drawing in more of them.
Figures reflect public sources as of mid-2026 and will move as commissioning slips or new awards land.
05 — Contact
Get in touch about a project.
For consulting and applied-research enquiries, reach out directly — a short description of the project or question is enough to start.