G3 Energy

First grid-scale gravity energy storage system commissioned to Chinese grid

web — Fri, 06 Oct 2023 06:52:02 +0000

Located outside of Shanghai in Rudong, Jiangsu Province, China, the 25MW/100MWh EVx GESS is built adjacent to a wind farm and a national grid interconnection site in the hopes of balancing the country’s national energy grid through long duration storage of renewable energy.

Commissioning began in June on the power electronics and what the company calls “new ultra-efficient ‘ribbon’ lifting systems”, they stated in a press release announcing the commissioning.

The system is expected to be fully grid interconnected in Q4 2023 as planned with local state grid authorities, which Energy Vault states will make EVx the world’s first commercial, utility scale non-pumped hydro GESS.

According to Energy Vault, the EVx system is expected to have round trip efficiency (RTE) above 80%.

50% of electricity in Greece by the end of the year will be produced by RES

web — Fri, 08 Jul 2022 21:55:09 +0000

At the end of 2022, 50% of the electricity demand in Greece will be covered by Renewable Energy Sources, said the Minister of Environment and Energy, Kostas Skrekas, speaking at the Economist conference. The figure was 30% in 2018 and increased as 5000 megawatts of new RES units were added in the interim, and the pace is expected to accelerate in the coming years: from 2023 new units of 2000 megawatts per year will be installed, meaning that in 2026 62 % of electricity demand will come from renewable sources. As the minister noted, the new law for the simplification of RES licensing will help to achieve the goals, as will the upgrading of networks and the installation of electricity storage units.

The pandemic helps and doubles the share of wind power and solar energy in the world

web — Sun, 16 Aug 2020 09:22:18 +0000

Solar and wind energy have doubled their share in the last five years, and already represent almost 10% of the energy produced in the world, according to an analysis by the British environmental group Ember.

Ember analyzed 48 countries that account for 83% of the world’s electricity. Data showed that wind farm and solar energy increased 14% in the first half of 2020 compared to the same period last year, while global energy demand fell 3% due to the impact of the coronavirus.

At the same time that wind turbines and solar panels proliferated, the proportion of coal in the mix fell around the world. In some places, mainly Western European countries, coal has been virtually eliminated from electricity generation.

China relied on the dirtiest fossil fuel for 68% of its electricity five years ago. This percentage fell to 62% this year and renewable energies accounted for 10% of all electricity generated, including wind farm, solar thermal and photovoltaic.

However, the growth of renewable energy may not be fast enough for the world to meet its climate targets.

Coal use is expected to drop about 79% by 2030 from last year’s levels, a decrease of 13% per year over the next decade, Ember said.

New installations in the wind sector are expected to remain more or less stable over the next five years, according to data from BloombergNEF. This will make it difficult to achieve a sustained rate of doubling of renewable energy every five years.