Introduction to Market4RES Questionnaire
This questionnaire has been drafted in the context of the European Project ‘Market4RES’, which is aimed at providing recommendations on the developments to take place in short and long term electricity markets driving a successful and efficient integration of large amounts of RES generation in the long term.

Within this project, Work Package 3 focuses on the conceptual assessment of design options for the developments to take place in short and long term markets. Options here selected as most promising should be further investigated in WP5 of our project with the help of quantitative models to determine which deserve being proposed for their implementation.
A Workshop on the first findings of the analysis conducted within WP3 of the project took place in Brussels on the 24th of June. There, the project team presented their preliminary conclusions on preferred, or most promising, design options, together with those that should be disqualified as contenders because they had some serious drawbacks. Arguments for the selection of best, and worst, design options were provided.

This questionnaire represents a logical continuation of our Workshop and is aimed at collecting useful feedback from relevant stakeholders like you on a set of issues related to the design of markets that we believe are specially critical and controversial, or disputable. Topics to discuss have been arranged into a reduced number of blocks related to main aspects of the functioning of markets both in the long and the short term.

We count on your participation to provide us with very valuable information to take into account in our final analysis and conclusions. If you feel like answering only a specific part of the questionnaire because this is more the most related to your field expertise, do not hesitate to do so. We also encourage you to disseminate this within your institutions looking for complementary expertise.

Many thanks on behalf of WP3 team within the Market4RES project.

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Part VII: BIDDING PROTOCOLS AND PRICING RULES
In the US, agents submit multi-part bids including all the economic and technical parameters. By doing so, they ensure that the dispatch is technically feasible while allocating the bids where they maximize the social welfare for the scenario defined by the expected demand, units availability, RES-E production, etc.

In Europe agents can submit simple (price-quantity) bids, complex bids and block bids (among others). Complex and block bids represent neither an actual single technical constraint nor cost component, but rather a combined effect of several. For example, the block orders used in a number of European markets allows agents to bids a “block” of energy covering an interval of consecutive hours and the minimum average price to which they are willing to commit for the interval. Where all-or-nothing terms are in place, if the average price offered for the interval is not reached, the simple hourly bids are removed from the eligible set of bids (or “killed”) in the market clearing process. These type of bids allows avoiding the risk of non-economical dispatches, but probably do not ensure a scheduling as efficient as one provided when considering multi-part bids (among other reasons complex and block bids usually entail agents to some extent anticipating the unit’s dispatch).
A) Day-ahead
Q-1.1 (Day-ahead): From your point of view, what are the advantages of the bidding formats (simple bids, block bids, complex bids, etc.) implemented in the Day-Ahead Price Coupling of Regions when compared with those implemented in the US market?
Please, write the answer below
Q-2.1 (Day-ahead):Do current bidding formats suitably accommodate the different characteristics of all resources (thermal, hydro, demand response, storage, etc.)?
Please, select an answer
Q-2.2 (Day-ahead): If "No" in 2.1 negative, what improvements are most needed?
Please, write the answer below
Q-3.1 (Day-ahead): What are the advantages/drawbacks of allowing portfolio bidding?
Please, write the answer below
B) Intra-day
Q-4.1 (Intra-day): Are complex or block bids necessary in the intra-day horizon?
Please, select an answer
Please, briefly justify your answer
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