Storage of electricity (PKD 35.16.Z)
This subclass includes:
- -conversion of electricity into another form, storage of such energy and subsequent reconversion into electricity (for example operation of pumped-storage power plants, compressed air storage facilities or battery storage facilities)
- distribution of stored electricity to the electric grid.
This subclass excludes:
- generation of electricity not resulting from storage, classified in 35.11.Z, 35.12.A, 35.12.B, 35.12.C, 35.12.D, 35.12.E, 35.12.F. gaseous in the network system
- This group includes: - production, storage and distribution of natural gas or other gaseous fuels to the user by a network system.
- This group does not include: - mining of natural gas, classified in 06.20.Z
- activities of brokers and agents organising the sale of gaseous fuels through distribution systems operated by other economic entities, classified in 35.40.Z
- transport of gas by transmission pipelines connecting producers with gas distributors or between urban agglomerations, classified in 49.50.A.
Industry statistics (2025)
Number of companies
Companies
3,447
Companies (primary PKD)
386
Companies with financials
144
Business turnover
Legal structure
Legal formShare of companiesNumber of companies
- Sp. z o.o.95.9%370
- JDG2.3%9
- P.S.A.0.8%3
- S.A.0.5%2
- Sp. j.0.5%2
Financial results
The calculation excludes new companies that pull financial results down. Only firms with a filing in the previous year are included, so market trends are easier to read.
Median revenue
Ranking
Median revenue compared with other PKD codes.
Top companies by revenue
| # | Company | Legal form | Revenue | Net profit |
|---|---|---|---|---|
| 1 | sp. z o.o. | USD 8.01m | USD 5.08m | |
| 2 | sp. z o.o. | USD 917.11k | USD 130.51k | |
| 3 | sp. z o.o. | USD 397.76k | USD -376.48k | |
| 4 | sp. j. | USD 373.41k | USD 267.62k | |
| 5 | sp. z o.o. | USD 342.28k | USD 242.54k | |
| 6 | sp. z o.o. | USD 178.88k | USD 17.46k | |
| 7 | sp. z o.o. | USD 153.48k | USD 135.27k | |
| 8 | sp. z o.o. | USD 62.74k | USD 54.31k | |
| 9 | sp. z o.o. | USD 60.00k | USD 5.12k | |
| 10 | sp. j. | USD 48.73k | USD 20.69k |
Fastest-growing companies
| # | Company | Legal form | Revenue | Y/Y growth |
|---|---|---|---|---|
| 1 | sp. z o.o. | USD 178.88k | +14,210.2% y/y | |
| 2 | sp. z o.o. | USD 153.48k | +12,439.8% y/y | |
| 3 | sp. z o.o. | USD 397.76k | +4,179.6% y/y | |
| 4 | sp. z o.o. | USD 40.47k | +3,449.1% y/y | |
| 5 | sp. z o.o. | USD 35.28k | +2,907.7% y/y | |
| 6 | sp. z o.o. | USD 342.28k | +1,999.7% y/y | |
| 7 | sp. z o.o. | USD 6.82k | +1,045.3% y/y | |
| 8 | sp. z o.o. | USD 30.78k | +682.0% y/y | |
| 9 | sp. z o.o. | USD 12.07k | +443.4% y/y | |
| 10 | sp. z o.o. | USD 60.00k | +300.0% y/y |
Stock market
1 company from this industry is listed.
| Company | Ticker | Market | Price | Change | Market cap |
|---|---|---|---|---|---|
| EMS | NewConnect | PLN 0.30 | 0.00% | USD 2.84m |
Related PKD codes in division 35
FAQ
The primary industry for 386 companies is storage of electricity. 144 entities have filed financial statements.
So far in 2026, 120 new companies with PKD 35.16.Z have been registered. In all of 2025, there were 141 such companies.
So far in 2026, no companies with PKD 35.16.Z have been deregistered. In all of 2025, there was 1 such company.
In 2025, the median revenue for PKD 35.16.Z was USD 21.00 and the mean revenue was USD 85.24k, based on 131 financial statements. Averages and medians include only companies that file financial statements, excluding sole proprietorships.
No, in 2025, the median net result was USD -20.70k, worse than in 2024 (USD -12.75k). Among all 678 industries in Poland, PKD 35.16.Z ranks 676th, placing it among the weakest <1%.
The most common legal form for PKD 35.16.Z is sp. z o.o., used by 370 companies in this industry (95.9% of the total). In second place is a sole proprietorship (9 companies, 2.3%), and in third place – P.S.A. (3 companies, 0.8%).

