Coal accounted for 13% of electricity generation, while natural gas and oil combined for a smaller share of 3.8%.

The flow of electricity between Denmark and the countries it has interconnectors with (Norway, Sweden, Germany, Netherlands and the UK), and the direction of that flow, is highly variable and depends on current demand and current Danish wind power output.

[5] The Danish electricity market is a part of the Nord Pool Spot power exchange.

[6][7] Danish consumption of wind turbine generated electricity is the highest in the world per person: 1,218 kWh in 2009.

The country's dedication to wind power, coupled with the expansion of other renewable energies, significantly reduced the carbon intensity of its electricity production to 92 grams of CO2 per kilowatt-hour (g CO2/kWh).

Over the preceding decade, there was a significant change in the composition of its electricity generation, with the share of coal decreasing from 43% to 13%.

[1][2] Over the last twenty years, Denmark has seen a significant reduction in natural gas production, declining from 30% in 2005 to 13% in 2022.

In parallel, the utilization of natural gas for electricity generation has dropped from 24% to 3%, and its contribution to the Total Energy Supply (TES) has decreased from 23% to 9%.

[1][2] In 2022, oil made up 37% of Denmark's TES, aligning with the International Energy Agency's (IEA) average of 35%.

[10] As of 2009[update] Danish consumption of wind-generated electricity topped the world per person: 1,218 kWh.

[20] The Environment declaration shows how the physical power is composed of different fuel sources.

[21] The General Declaration differs due to trade with green certificates, and does not show actual composition.

[28] Denmark has 1250 MW of methane-fueled distributed power plants supplying district heating.

In January 2003, Ørsted (then called DONG Energy) acquires a 64% share in the regional power company EnergiGruppen Jylland, which owned 3.1% of the electricity producer Elsam.

At the same year Elsam acquired 78.8% of retail sales operator NESA and later took a full control of the company.

[10][30] Due to a reduction in PSO-money, combined heat and power plants receive an estimated DKK 2.5 billion less in 2019.

[10] Since 2006, Denmark has seen a steady decline in coal use for electricity generation, with demand dropping by 80% since 2005, notwithstanding a slight uptick in 2021.

The shift from coal is progressing, with an anticipated complete phase-out in heat and electricity production by 2028.

Looking ahead, Denmark is anticipated to shift towards becoming a net exporter, facilitated by the expansion of interconnector capacities, the launch of the Viking Link—a 1,400 MW high-voltage direct current (DC) interconnector with the United Kingdom—and an increase in wind power generation.

[32] The 600 MW DC Great Belt Power Link connecting the two systems was commissioned in July 2010, started commercial operations in August 2010, and was inaugurated on 7 September 2010.