Full coverage: Renewable energy

The former owners of Beauparc are back in the waste and energy business after acquiring the Huntstown biogas project. Developed to generate gas from brown bins, the plant is not yet in commercial operation.

After years of delays, a court dispute and a large write-off, Energia has found a willing buyer for its problem-riddled Dublin biogas plant. Waste treatment entrepreneur Eamon Waters is familiar with the project.

Ronan Doherty was among the founders of ElectroRoute, the energy trading company fully acquired by Mitsubishi last year. He explains where his business sits in the increasingly interconnected electricity grid required to power Europe without fossil fuels.

Multinational SSE Renewables is accused of breaching a key part of its pact to take over Green Wind Energy, the owner of a large wind farm in Co Offaly. The vendors say they are facing significant losses if the Scottish-based energy firm doesn't change course.

Finance and contractors are in place for the major infrastructure project destined to replace peak gas-fired generation with overseas renewable or nuclear electricity. Thomas Hubert reports from Paris.

The Norwegian state-owned renewable energy group continues to pour cash into Ireland, with more details now emerging on its broadening range of interests – including a stated ambition to lead offshore wind here.

The energy storage business has been growing in tandem with intermittent renewable supply. It can also offer a quick fix to insufficient network capacity – as long as it doesn’t replace necessary upgrades.

Engineer Catherine Sheridan joined Cork entrepreneur Pearse Flynn's new company EI H2 six months ago to hunt for energy players willing to explore hydrogen as a replacement green fuel. The technology is there, but her job is just as much about hearts and minds.

The latest project to produce the clean fuel is due to enter production next year on an existing wind farm, focusing on demand as well as supply.

The state-owned utility needs to work with the wider industry if Ireland is to keep the lights on while respecting its climate obligations. CEO Paddy Hayes answers The Currency's questions on finance and grid connections.