Sol Associates
Data as at 31 December 2025
Screening the Romanian pipeline by the number of permits reads the market backwards. The Transelectrica connection register, as published, holds 5,119 entries. Solar accounts for 4,829 of them, which is 94 percent of every entry in the file. On that number alone Romania looks like a solar market with a rounding error of everything else.
The same register, counted two ways
| Technology | Register entries | Share of entries | Share of approved megawatts |
|---|---|---|---|
| Solar | 4,829 | 94 percent | Under a fifth |
| Storage (BESS) | 112 | 2 percent | Over a third |
| Wind | 57 | About 1 percent | Not stated here |
| All other categories | 121 | About 2 percent | Not stated here |
Capacity tells a different story. Those same solar entries carry under a fifth of the approved megawatts. Storage, at 2 percent of entries, carries over a third. Count and capacity point in opposite directions because one storage entry can be an order of magnitude larger than one small ground-mount solar permit.
We give the megawatt shares as bands rather than exact percentages on purpose. The reason is in the last section below.
Why it matters for a screen
A screen that ranks technologies or counties by number of entries will overweight what is numerous and underweight what is large. If megawatts are what is being financed, megawatts are what has to be counted. The register carries both fields. Many desktop screens read only one of them.
The opposite error exists too. A screen that sums megawatts alone is exposed to a few very large rows, so it needs the count alongside it to show whether a headline is broad or concentrated.
A caution on the data
The register records approved megawatts per entry, and individual rows can hold values that are implausible for the stated technology or voltage. For example, the four biogas entries carry close to 3,000 MW of approved capacity between them, which no biogas plant approaches. Read the outliers before you sum the column. The register also holds 5,119 entries against 5,096 distinct ATR numbers, so a small number of ATR numbers appear more than once.
What to do with it
- Report entries and megawatts side by side, never one alone.
- Sort by capacity and inspect the top rows before trusting any total.
- Label the date. This snapshot is as at 31 December 2025, so it says nothing about permits issued, lapsed or modified since.
The question to ask of your own screen is simple: does it weight count or capacity, and do you know which?
General information prepared from public sources, not legal advice. Read the disclaimer.