#windenergy

mkwadee@diasp.eu

It's a nice #SunnyDay outside and it really feels like spring. The #bees are busy making use of the #flowers, while the flowers are busy making use of the bees.

The #UK #ElectricyDemand is currently 32 GW and of that, 25.2% is coming from #SolarEnergy, 17.1% is coming from #WindEnergy, 16.8% is coming from #NuclearEnergy and 9.9% is coming from #Biomass and only 7% is coming from #Gas. There is also a fair amount coming from continental Europe through the various interconnections.

https://www.gridwatch.templar.co.uk/

#Environment #Electricity #FossilFuels #GreenhouseGases Renewables #RenewableEnergy

waynerad@diasp.org

Single-bladed floating wind turbine. From a Dutch company called Touchwind.

"It's designed around a massive single-piece rotor, sitting on the end of a pole that's draped over a big barrel, with a large floating buoy hanging beneath it."

"This one huge double blade, says Touchwind, should cost around 30% as much to make as the triple-bladed arrangements on traditional turbines. It doesn't require any expensive active blade-pitch control systems, and where most standard turbines need to shut down in wind speeds above 25 or so m/sec (90 km/h / 56 mph), this one is rated for speeds as high as 70 m/sec (252 km/h / 157 mph). Less downtime equals more productive hours and more energy."

The reason for the lack of active blade-pitch control systems is the wind itself and the dangling buoy server to control the angle of the blade, so it always has the right exposure to the wind.

Single-bladed floating wind turbine promises half the cost, more power

#energy #wind #windenergy #renewableenergy

spon@friendica.produnis.de
danie10@squeet.me

How South Africa's Eskom avoided more load-shedding this winter - Koeberg Nuclear Unit back online and Wind was contributing 500-1100MW

In the last full week of load-shedding – between 7 June and 13 June – the average contribution of wind generation during peak evening usage stood at 525MW.

In the most recent week of 28 June to 4 July 2021, the figure was more than double that – at 1,272MW. The week before that, wind generation’s contribution averaged at 1,077MW during the evening peak.

Eskom currently has nearly 5,350MW of renewable generation capacity, including more than 2,700MW of installed capacity at independent power producer (IPP) solar plants and 2,600MW of wind generation from both its own Sere project and private sectors farms.

Of course, Cape Town had been using it's local hydropower station to supplement power and thereby usually managed to be a level lower than the rest of the country for load-shedding.

See How Eskom avoided more load-shedding this winter

#technology #renewableenergy #southafrica #eskom #windenergy

This is why Eskom has been able to avoid load-shedding for almost a month, despite continued cold temperatures in the country.


https://gadgeteer.co.za/how-south-africas-eskom-avoided-more-load-shedding-winter-koeberg-nuclear-unit-back-online-and-wind