October is a time when the world circulates every few days who will receive the Alfred Nobel Memorial Prize in particular fields in 2020.

The Central Bank of Sweden, which has sponsored the economic award, in 2020 year honored two American economists: Paul Milgrom and his PhD thesis supervisor Robert Wilson.

The prize will be awarded for research on the theory of auction, which is also widely used in the energy market.

Reading an article by Witold Gadomski about 2020 Nobel laureates in economics, I was, however, interested in a completely different statement by Robert Milgrom:

“If the markets are in an effective equilibrium, there is no unreasonable price interference, and the traders get information in the same way, even if some may have private information, none will be able to profit from it. In other words - if there is common knowledge of the market structure, then any bid to buy or sell will reveal the private knowledge of the bidder and affect the price before anyone accepts the offer. So having private information will not bring you extra profit. ”

What could this have to do with purchasing energy? In my opinion, we can use this statement to prove the thesis that wholesale energy trading on the commodity exchange has a positive effect on the market. Thus, I would like to refer to the ongoing dispute about the superiority of the power exchange obligation over the lack of it.

History of the power exchange obligation

Let us recall the history of the exchange obligation on the Polish energy market.

In 2010, following a discussion triggered by industrial consumers who complained that they were unable to check the competitiveness of price levels due to lack of market access, an obligation to trade on TGE was introduced for:

• energy producers - 15% of the total transaction volume,
• companies seeking compensation for the termination of the so-called LTCs (long-term contracts) - 100%.

What was the effect of introducing only the 15% obligation to trade through the Polish Power Exchange?

First of all, it was to increase market transparency. So, returning to 2020 Nobel laureate, market participants could obtain information in the same way. For industrial customers, who are the largest energy consumers, this meant the possibility of setting energy prices based on quotations on the wholesale market. This led to significant energy savings in these companies.

It was a milestone in the development of energy trading on TGE. It would seem that it is only 15%, but it was indeed a key moment for the Polish energy market.

the chart shows the course of changes in the BASE_Y_12 contract prices and the trading volume in the period from 29-03-2010 to 29-12-2011

In 2017, PGE took over the assets of EDF Polska. Concentration on the energy market resulting from the government's policy aimed at the so-called Repolonization, apart from the increase in coal prices and CO2 emission rights, could be one of the reasons for the increase in prices on the energy market.

The Office of Competition and Consumer Protection in its decision (DECISION No. DKK-156/2017) approving the takeover of EDF Polska by PGE referred to the reservations of other energy companies (including state-owned companies) that after the takeover, PGE's dominant position in the generation segments will increase and sales to end users on the energy market and imposed on PGE an obligation to trade on TGE for the volume of the acquired Rybnik power plant. It is also worth noting that the Energy Regulatory Office issued a negative opinion on the acquisition precisely because of the reduction of competition.

In 2016 and 2017, we observed a decrease in volumes on TGE:

the chart shows the changes in the BASE_Y_18 contract prices and the trading volume in the period from 01-06-2016 to 30-12-2016

and the increase in prices mainly due to the increase in coal prices:

the chart shows the changes in the BASE_Y_18 contract prices and API2 coal prices in the period from 01-01-2017 to 01-01-2018

and CO2 certificates:

the chart shows the changes in prices of the BASE_Y_18 contract and prices of CO2 emission allowances in the period from 01-01-2017 to 01-01-2018

At the beginning of February 2018, the obligation of wholesale trading on TGE was increased to 30%. After the idea of ​​the opposition to increase the power exchange obligation in order to reduce the risk of an impact on the prices of producers increasing their market position as a result of concentration of production capacity, the National Bank of Poland gave a positive opinion. The Ministry of Energy added the increased power exchange obligation not to 50%, but up to 30% to the act on the capacity market that was being processed at that time.

At the end of 2018, the then Ministry of Energy proposed the introduction of a 100% obligation in order to prevent uncontrolled increases. In the course of the legislative work, the original proposal was considerably softened by introducing an exception allowing the omission of those energy sales contracts that had been concluded before the imposition of 100% of the obligation.

The idea of ​​abandoning the stock exchange obligation, mentioned earlier, appeared during talks with mining trade unions on the restructuring of the mining sector in September this year. As we know, a lively discussion broke out, which was reflected in many publications.

Exchange obligation on the natural gas market

In January 2013, the President of the Energy Regulatory Office presented the Roadmap for the liberalization of natural gas prices.

Due to the strong concentration of the market, the document assumes a gradual liberalization of prices for customers with different consumption volumes and a gradual increase in the exchange obligation.

The map assumed the following progression for gas trading on the gas exchange:

• from 1 July 2013: 30% of the annual domestic gas demand,
• from 1 January 2014: 50% of the annual domestic gas demand,
• from 1 July 2014: 70% of the annual domestic gas demand.

In the beginning, it was 30%. Over the next two years, the gas exchange obligation for wholesale gas trading increased. The 70% level never came into force and was replaced with 55% that are still in force today.

I think that the introduction of this obligation was to a large extent the source of the success that we have undoubtedly achieved in creating a competitive gas market in this part of Europe. It was not only the companies that wanted to take over a part of the market dominated by a single player, which was PGNiG, but also the recipients of blue fuel benefited from this. Pressure from alternative natural gas sellers in Poland has resulted in a significant change and a significant increase in the flexibility and attractiveness of offers on the Polish market.