With the expected increase of the relative share of renewable electricity generation in the electricity mix, we could reasonably expect:a.A consolidation of the current geography of market zonesb.A lower occurrence of null and negative pricesc.An increase in volumes traded on intraday marketsd.A lower occurrence of null and negative prices

With the expected increase in the relative share of renewable electricity generation in the electricity mix, we could reasonably expect:

a. A consolidation of the current geography of market zones: This is possible as the increase in renewable energy sources might lead to a more distributed generation. This could potentially consolidate the current geography of market zones as renewable energy sources are often location-specific (e.g., solar power in sunny regions, wind power in windy regions).

b. A lower occurrence of null and negative prices: This might not necessarily be the case. The occurrence of null and negative prices is often due to an oversupply of electricity in the grid. As renewable energy sources are intermittent and not always predictable, there might still be times when there is an oversupply of electricity, leading to null or negative prices.

c. An increase in volumes traded on intraday markets: This is likely as the increase in renewable energy generation might lead to more fluctuations in electricity production. This could increase the need for intraday trading to balance supply and demand.

d. A lower occurrence of null and negative prices: As mentioned in point b, the occurrence of null and negative prices might not necessarily decrease with an increase in renewable energy generation. It would depend on the balance between supply and demand at any given time.

The expected increase in the relative share of renewable electricity generation in the electricity mix could lead to several potential outcomes:

a. A consolidation of the current geography of market zones: This could be a reasonable expectation as the increase in renewable energy generation might lead to a more concentrated geographical distribution of energy production. This is because renewable energy sources such as wind and solar power are location-specific.

b. A lower occurrence of null and negative prices: This might not necessarily be the case. In fact, the increase in renewable energy could potentially lead to more occurrences of null and negative prices. This is because renewable energy is intermittent and can lead to an oversupply of electricity when conditions for generation are optimal, thus driving down prices.

c. An increase in volumes traded on intraday markets: This is a likely outcome. The intermittency of renewable energy sources means that the amount of electricity generated can vary throughout the day. This could lead to more trading on intraday markets as producers and consumers adjust to these fluctuations.

d. A lower occurrence of null and negative prices: As mentioned in point b, the increase in renewable energy could potentially lead to more occurrences of null and negative prices due to potential oversupply during optimal generation conditions.