What it is
Cutting windfall CO2 gains for clean power plants
Committee step 4 of 7 · UnfinishedIt is a government bill. Introduced by the Government. It was introduced on 4 August 2021. Introduced by: Gobierno.
Official title: Government bill acting on the remuneration of unemitted CO2 in the electricity market.
Source: Congreso de los Diputados, file 121/000065· updated 11 Nov
Automatic summary, not yet reviewed
- The bill would reduce the market revenues of certain non-emitting power plants, specifically the extra income they get because CO2 costs push up the wholesale electricity price.
- It would only apply to non-emitting plants in mainland Spain that started operating before October 25, 2003. Plants with a special compensation scheme and plants of 10 MW or less are excluded.
- The reduction would apply to all the energy produced by those plants, even if it is sold through bilateral contracts instead of the day-ahead market.
- The amount would be calculated monthly using a formula based on energy produced, a market emission factor and the CO2 price. It only applies when the CO2 price exceeds €20.67 per tonne, and plants keep 90% of that excess.
- The settlement body would calculate and notify the amounts each quarter, and companies would have two months to pay. Quarterly payments count as advance payments toward an annual final settlement.
- The money raised would fund capacity payments and system charges, and 10% would help pay the electricity bills of severely vulnerable consumers.
Who it affects
- Owners of non-emitting mainland plants operating before October 25, 2003: Their market revenues from unemitted CO2 would be reduced.
- Electricity consumers: Could pay lower system charges, since the proceeds fund system costs.
- Severely vulnerable consumers: 10% of the proceeds would help cover their electricity supply.
- Plants with a special compensation scheme or under 10 MW: Are excluded from the reduction.
Words worth knowing
- CO2 no emitido (unemitted CO2)
- Extra income clean plants receive because the market price rises due to the CO2 costs of polluting plants.
- Mercado mayorista (wholesale market)
- The market where power plants sell the electricity that later reaches consumers.
- Derechos de emisión (emission allowances)
- Permits that CO2-emitting plants must buy; their price raises electricity prices.
- Inframarginal (inframarginal)
- A plant whose costs are so low that it profits from the price set by the most expensive plant in the market.
- Cargos del sistema (system charges)
- Electricity system costs (renewables, capacity, etc.) shared among consumers.
It summarizes the drafting committee report. It is written by artificial intelligence and may contain mistakes: the official text is what counts. Read the official text · How we make summaries
Where it stands
How far did it get?
It took 4 of 7 steps. It reached Committee, and today it is unfinished.
- Introduced4 August 2021Someone registers the text in the Congreso.
- Admitted25 August 2021The Bureau of the Congreso accepts it and, for a members’ bill, the plenary decides whether to consider it.
- Amendments30 August 2021Groups propose changes.
- Committee23 September 2021A committee goes through the text in detail.
- Plenarynot reachedAll 350 deputies vote.
- Senatenot reachedThe Senate can pass it, amend it or veto it.
- BOEnot reachedIt is published in the Official State Gazette (BOE) and comes into force.
See the 9 official steps on a timeline
14 October 2021
How did the plenary vote?
Voted on: Vote on the amendment to the whole with alternative text to the Government bill acting on the remuneration of unemitted CO2 from the electricity market, submitted by the Popular Parliamentary Group in the Congress.
Source: Congreso de los Diputados, vote 9 of sitting 124· updated 11 Nov
Each dot is a seat. Tap one, or use the arrow keys, to see who it is.
Your province
How did the deputies from your province vote?
And your senators: the Senate does not link its votes to this law in its open data, so we cannot put them side by side here.
Or see how most of each province voted
- A Coruña More votes against 3 yes · 5 no
- Albacete Tie 2 yes · 2 no
- Alicante/Alacant Tie 6 yes · 6 no
- Almería More votes in favour 4 yes · 2 no
- Araba/Álava More votes against 0 yes · 4 no
- Asturias More votes against 3 yes · 4 no
- Ávila More votes in favour 2 yes · 1 no
- Badajoz Tie 3 yes · 3 no
- Barcelona More votes against 5 yes · 24 no · 1 abst.
- Bizkaia More votes against 1 yes · 7 no
- Burgos Tie 2 yes · 2 no
- Cáceres Tie 2 yes · 2 no
- Cádiz More votes against 4 yes · 5 no
- Cantabria More votes in favour 3 yes · 2 no
- Castellón/Castelló More votes against 2 yes · 3 no
- Ceuta More votes in favour 1 yes · 0 no
- Ciudad Real More votes in favour 3 yes · 2 no
- Córdoba Tie 3 yes · 3 no
- Cuenca More votes against 1 yes · 2 no
- Gipuzkoa More votes against 0 yes · 6 no
- Girona More votes against 0 yes · 5 no · 1 abst.
- Granada More votes against 3 yes · 4 no
- Guadalajara More votes in favour 2 yes · 1 no
- Huelva More votes against 2 yes · 3 no
- Huesca More votes against 1 yes · 2 no
- Illes Balears Tie 4 yes · 4 no
- Jaén More votes against 2 yes · 3 no
- La Rioja Tie 2 yes · 2 no
- Las Palmas More votes against 3 yes · 5 no
- León Tie 2 yes · 2 no
- Lleida More votes against 0 yes · 3 no · 1 abst.
- Lugo Tie 2 yes · 2 no
- Madrid More votes against 17 yes · 19 no
- Málaga More votes against 5 yes · 6 no
- Melilla More votes in favour 1 yes · 0 no
- Murcia More votes in favour 5 yes · 4 no
- Navarra More votes against 2 yes · 3 no
- Ourense Tie 2 yes · 2 no
- Palencia More votes in favour 2 yes · 1 no
- Pontevedra More votes against 3 yes · 4 no
- Salamanca More votes in favour 3 yes · 1 no
- Santa Cruz de Tenerife More votes against 3 yes · 4 no
- Segovia More votes in favour 2 yes · 1 no
- Sevilla More votes against 5 yes · 7 no
- Soria Tie 1 yes · 1 no
- Tarragona More votes against 0 yes · 5 no · 1 abst.
- Teruel More votes against 1 yes · 2 no
- Toledo More votes in favour 4 yes · 2 no
- Valencia/València More votes against 7 yes · 8 no
- Valladolid More votes in favour 3 yes · 2 no
- Zamora More votes in favour 2 yes · 1 no
- Zaragoza More votes against 3 yes · 4 no
More details: how each group and each province voted
The groups
Who voted in favour and who against?
In favour, most of Popular en el Congreso and VOX. Against, most of Euskal Herria Bildu, Republicano, Socialista, Vasco (EAJ-PNV), Mixto, Ciudadanos, Gcup-ec-gc and GPlu. 10 deputies voted differently from their group.
By province: in 14 most voted in favour; in 26, against.
Coloured by how most of each province’s deputies voted.
- In favour: 14
- Against: 26
- Tie: 12
| Group | Seats | How it voted |
|---|---|---|
| Euskal Herria Bildu | 5 | 5 against |
| Republicano | 13 | 1 in favour · 10 against · 2 did not vote |
| Socialista | 120 | 120 against |
| Vasco (EAJ-PNV) | 6 | 6 against |
| Mixto | 10 | 4 in favour · 6 against |
| Ciudadanos | 9 | 9 against |
| Gcup-ec-gc | 35 | 1 in favour · 34 against |
| GPlu | 12 | 8 against · 4 abst. |
| Popular en el Congreso | 88 | 86 in favour · 2 did not vote |
| VOX | 52 | 52 in favour |
What happens next
What happens now?
The legislature ended before it finished. To go on, someone would have to introduce it again in the new Cortes.
It has not been presented again yet.
Sources
Where does all this come from?
- Congreso de los Diputados, file 121/000065
Official title, type, author, dates and stage.
Retrieved 11 November 2026
- Congreso de los Diputados, vote 9 of sitting 124
The count and every seat’s vote.
Retrieved 11 November 2026
- The data comes from the open files of the Congreso, the Senate and the BOE, unaltered.
- Each deputy’s province is the one of their seat on the day of the vote.
- We only say “passed” or “rejected” when the majority needed is certain; otherwise we say which side had more votes.