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Quantifying the Energy Floor: Direct Measurement and Replay Buffer Bias in SAC-Based HVAC Control on sbsim
Announce Type: new Abstract: We quantify the energy floor -- the minimum achievable cost given action space constraints -- for Soft Actor-Critic (SAC) HVAC control on the sbsim calibrated building simulator. Through minimum-action experiments, we directly measure this floor at USD 35.51/day, dominated by continuous electrical loads (USD 35.44, 99.8%) with negligible gas consumption. The standard SAC baseline, initialized with schedule-policy replay buffer transitions, converges to USD...
Estimation of Equivalent SCR for Offshore Wind
arXiv:2606.03538v1 Announce Type: new Abstract: The integration of offshore wind power plants (OW-PPs) into weak grids can pose stability challenges due to the interaction between inverter-based resources (IBRs), Flexible AC Transmission Systems (FACTS) and the grid. In this context, long HVAC transmission systems, relatively common for OWPPs, can exacerbate the stability challenges. Therefore, this paper introduces a novel methodology for estimating the equivalent short-circuit ratio (ESCR)...
Trump adjusts tariffs on steel, aluminum and copper imports
Trump adjusts tariffs on steel, aluminum and copper imports The changes go into effect Monday - Bookmark President Donald Trump on Monday adjusted tariffs on certain steel, aluminum and copper imports, notably lowering rates for farming equipment and expanding categories for industrial machinery. An executive order reduced tariffs on agricultural equipment, including combines and harvesters, and HVAC systems, from 25 percent to 15 percent. The 15 percent tariff category for industrial...
In a first, wind and solar generated more power than gas globally in April 2026
Wind and solar just hit a major global milestone: For the first time ever, they generated more electricity than gas for the full month of April. According to new analysis from independent energy think tank Ember, wind and solar produced 22% of the world’s electricity in April 2026, compared to 20% from gas. Together, the two renewable sources generated a record 531 terawatt-hours (TWh) of electricity during the month, 54 TWh more than gas plants generated globally, at 477 TWh.
RESCAST-100K: A Comprehensive Dataset for Cross-Domain Residential Load and Indoor Temperature Forecasting
arXiv:2606.02852v1 Announce Type: new Abstract: Accurate short-term forecasting of residential energy load and indoor temperature is essential for home energy management systems, grid-level demand response, and community energy efficiency efforts. Domain adaptation and transfer learning have shown promise for improving forecasting accuracy under data heterogeneity and scarcity commonly seen in residential settings. However, progress is limited by the lack of comprehensive residential...
Smokin' Charley Hull gets off to a fast start at U.S. Women's Open before fading, Stephen A weight loss & MEAT
Welcome in to another edition of Friday Screencaps where I address my 16th wedding anniversary with Mrs. Screencaps and we check in with Smokin' Charley Hull at the U.S. Women's Open to see if she's returned to smoking cigs at a tournament as the pressure mounts. First, I would be a complete moron if I didn't mention the anniversary thing. Last week, Mrs. Screencaps and I started to build a plan for the evening and where we might want to go to dinner with our boys.
WNBA's Sophie Cunningham's latest viral attire celebrates her love of BBQ, cornhole golf course & hot steaks!
It's Saturday morning, the sun is shining bright, there's a breeze off Lake Erie, which is going to keep temps around 70 degrees, I have a dumpster in the driveway ready for an old swing set, but first, it's time for Saturday Screencaps. Let's kick things off with FOOD. None other than Arby's queen Sophie Cunningham showed up to work last night — she plays in the WNBA in case you just woke up in a 3-4 year coma — proclaiming to be a "BBQ Baddie," across her top, which is quite the statement...