Reena Marwah’s Post

Weekly power simulation, week 6 of 2024 Another very windy week, almost exclusively powered by renewable energy. Interestingly, Thursday night saw wind and solar generation drop to almost zero for a few hours. Here, the model's five hours' worth of storage kicks in to fill the gap. But what's important is not so much whether the storage can fill the gap entirely - what's important is its ability to reduce the need for other generation or imports. In this case, the shortfall is reduced from app. 8.4GW to 3.2GW. By no means a trivial task, but there's a huge difference between needing 3.2GW, and needing 8.4GW. ----- Each week, I run a simulation using real-world generation data from the Danish power grid, with #windenergy and #solarenergy scaled to match future (2033) capacities, as forecasted by the Danish Energy Agency. See earlier posts by searching for #WeeklyPowerSimulation The original idea for such a simplified, but very illustrative, simulation is David Osmond's from Australian Windlab. His version is found on twitter here: https://t.co/5Y3UiKB5Di

Effect of Solar Eclipse on Solar generation capacity in US only...a good snapshot from #EIA to remind importance of this #renewableenergy source in our lives. Let's reap the rewards of #renewables and support #solarenergy transition alongside other renewable energy resources such as #windenergy and others..

As we head into President's Day weekend, this week CAISO sets another record! Few days ago, Battery Storage discharge peaks at 5,625MW during the afternoon discharge hours tackling the demand peak and effectively managing the solar duck curve. Very exciting to see renewable energy firming supported by large energy storage system. Grid Status provides an excellent view on how each of the ISOs are tackling grid challenges and provides an accurate view of LMPs facilitating / incentivizing needed stability response from the market. Lots of recent detailed dashboards available tracking frequency movements, solar + wind generation view (ERCOT), etc. Grid resiliency is the key to success for #gridmodernization. Very important for us to recognize the importance of the bigger picture and what problem we are solving. Remember, again, #bess is not a generation asset, it's a balancing solution providing multi-stacked stability support system. Much needed for our green energy future!

Weekly power simulation, week 11 of 2024 No such thing as perfect in the energy system - it's all trade offs and balances... HOWEVER, last week was pretty darn near perfect in our simulation. Wind and solar directly made up 97.2% of Danish power demand, but when adding storage and demand-side flexibility, Denmark was powered by 100% solar and wind last week! 97.2% renewable share year-to-date. ----- Each week, I run a simulation using real-world generation data from the Danish power grid, with #windenergy and #solarenergy scaled to match future (2033) capacities, as forecasted by the Danish Energy Agency. See earlier posts by searching for #WeeklyPowerSimulation The original idea for such a simplified, but very illustrative, simulation is David Osmond's from Australian Windlab. His version is found on twitter here: https://t.co/5Y3UiKB5Di

Researchers at Stanford University together with U.S. Department of Energy (DOE) have developed Photovoltaic Thermo Electric Generator (PV-TEG) that transforms #solar PV panels in a 24 hours clean #electricity generation machine. European Parliament It is indeed an #innovative solution that we can test on solar PV projects in #europeanunion. By maturing PV-TEG solution, we can really help #EU moving beyond #fossilfuels and #nuclearpower and into an era of 100% #renewableenergy. https://lnkd.in/dU8Rwzqn /Ayoub #AyoubHameedi #ProjectGE #ProjectHuner #solarpv #solarpower #renewableenergy #sustainability #ClimateAction #GlobalGoals #ParisAgreement #SustainableDevelopmentGoals

Weekly power simulation, week 16 of 2024 Yet another week with solar and wind powering future-Denmark 100% of the time. Last week saw sunny spring weather here in Denmark, with most trees now budding out, and Danes enjoying the nice (albeit still not too warm) outside. The energy system was dominated by daily solar spikes upwards of 15GW, on top of a relatively consistent 'base layer' of onshore and offshore wind. In total, 2.7 TWh renewable electricity fed into the grid, of which roughly half to cover regular demand, a third available for PtX - and 0.4TWh exported or curtailed. ----- Each week, I run a simulation using real-world generation data from the Danish power grid, with #windenergy and #solarenergy scaled to match future (2033) capacities, as forecasted by the Danish Energy Agency. See earlier posts by searching for #WeeklyPowerSimulation The original idea for such a simplified, but very illustrative, simulation is David Osmond's from Australian Windlab. His version is found on twitter here: https://t.co/5Y3UiKB5Di

Weekly power simulation, week 12 of 2024 Yet another case of wind, solar, storage, and flexibility interacting to ensure Danish power demand was matched 100% by wind and solar last week. And with the beautiful transition from wind-solar-wind on Wednesday, I think it justifies a 'feels good' meme. 97.5% renewable share year-to-date. ----- Each week, I run a simulation using real-world generation data from the Danish power grid, with #windenergy and #solarenergy scaled to match future (2033) capacities, as forecasted by the Danish Energy Agency. See earlier posts by searching for #WeeklyPowerSimulation The original idea for such a simplified, but very illustrative, simulation is David Osmond's from Australian Windlab. His version is found on twitter here: https://t.co/5Y3UiKB5Di

Weekly power simulation, week 25 of 2024 For many weeks now, renewable electricity has been abundant in the daytime, thanks to 24GW solar PV in our simulation. However, night time can present the occasional challenge, if there's a wind lull. Most times, the model's 36GWh battery storage kicks in and is enough to fill the gap. However this Thursday night, batteries wasn't enough. Fortunately, however, the simulated Danish power grid was still able to maintain 100% renewable energy share last week, by activating 16.3 GWh's worth of demand side flexibility, namely EV charging, heat pumps and data centers. ----- Each week, I run a simulation using real-world generation data from the Danish power grid, with #windenergy and #solarenergy scaled to match future (2033) capacities, as forecasted by the Danish Energy Agency. See earlier posts by searching for #WeeklyPowerSimulation. The original idea for such a simplified, but very illustrative, simulation is David Osmond's from Australian Windlab. His version is found on twitter here: https://t.co/5Y3UiKB5Di

Weekly power simulation, week 23 of 2024 Another beautiful week in the Danish energy system, with lots of wind and solar, making up 100% of power demand, plus enabling hydrogen and power-to-X to run at 91% capacity. Roughly 20% of renewable generation is 'excess' to be either exported, or curtailed. Power demand tends to be lower in the summer - at least, it is today, which is what this simulation is based on. Denmark consumes about 20-25% less power in June, compared to January (respectively 3.7GW and 4.7GW on average) ----- Each week, I run a simulation using real-world generation data from the Danish power grid, with #windenergy and #solarenergy scaled to match future (2033) capacities, as forecasted by the Danish Energy Agency. See earlier posts by searching for #WeeklyPowerSimulation. The original idea for such a simplified, but very illustrative, simulation is David Osmond's from Australian Windlab. His version is found on twitter here: https://t.co/5Y3UiKB5Di

Recent excellent analysis (https://lnkd.in/eBtaGbyA) by Ember again shows that electricity grids may well become the biggest bottleneck of the #energytransition. As solar and wind generation will be the working horses of the transition and should preferably be connected to electricity demand centres over the largest geographical area possible, it seems to me that even perceived over-investment by system operators would still be a "no-regrets" option. #energy #renewableenergy #decarbonisation #futureproof #smarterenergy