Top Tweets for #PCLR

6 days ago

#PGRR145 approval means that applicants seeking #speedtowpower with #PCLR, privately firming load deliverability, can confidently seek that treatment consideration in their entryway to the Batch Zero study process. Thank you to all the #PGRR134 supporters, particularly my own advised venture @SlBrandin for helping us bring first principles to the first market design that is ready-to-ship for large load @#speedtopower that actually solves reliability risk, transmission affordability, and siting loads to benefit all ratepayers, simultaneously. It is worth noting today @FERC announced a series of wind-around show causes and punted the market design decision to dozens of individual utility operators because that is the reality of the physics of making #speedtopower work. It is unavoidable. It is not red tape. The physics of a grid determine what solutions work - ERCOT is lucky that its regulator directly governs physics-based solutions. In @ERCOT_ISO we wrote the market standard and made it available to the public in 10 months because physical operator -to-regulator is a stone's throw conversation. Much like #ADER, the #PCLR framework will go through maturity cycles, all of which we are stoked to work on and share with other grids.

Arushi Sharma Frank

@ArushiSF

6 days ago

#PGRR145 is approved. The Batch Zero @ERCOT_ISO framework is formalized, allowing them to continue on as planned. To the extent last-minute protests are being considered, the one that is definitely getting resolved is the affiliates issue raised by #cyrusone. PGRR145 establishes an eligibility framework keyed to maturity criteria on the interconnecting entity, satisfied through attestation. Several commenters had sought clarification on whether an entity may rely on an affiliate to meet those criteria. CyrusOne led that commenting cycle, along with @CrusoeAI . ERCOT's position was that the requested clarification is reasonable and would not impair its ability to administer the process, and that ERCOT plans to implement PGRR145 to allow reliance on affiliates. To do so, ERCOT said it needs bright-line criteria to confirm that a claimed affiliate is in fact the entity's affiliate, and that it intends to apply the definition in 16 Texas Administrative Code § 25.5(3)(A)–(E) — a provision written for public utilities, but one ERCOT would apply here regardless of whether the entity is itself affiliated. A commissioner confirmed the citation on the record.

Arushi Sharma Frank

@ArushiSF

8 days ago

Whoever understands this.... will understand that #PGRR145 #PCLR framework I sponsored for #largeloadflex #speedtopower is derivative of and cousins with all of my work on #DERS in @ERCOT_ISO #SCED and that I find it very funny that 3 yrs ago I was solving #DER #powerwall @teslaenergy math and now I'm solving for @nvidia #AIFactories math Enough acronyms to take a damn bath in, also. @patwood3 😄

Arushi Sharma Frank

@ArushiSF

8 days ago

Okay so before #ADER was ADER we had this goofy name, Aggregate Injection Withdrawal Resource: AIWR. I killed THAT fast. I guess it could come back. But, you can enjoy the legacy name pictured on this marker board. 👇🏽 Anyway, a #DER #aggregation needs its own composite nodal shift factor, calculated as the weighted average of the shift factors of the electrical locations where its controllable MW actually sits. The weight should reflect the aggregate’s real dispatchable capability or telemetry by location, not merely the broad load-zone load distribution. Aggregate DER dispatch should not be priced or dispatched using a crude load-zone average if the DER fleet is concentrated at specific electrical locations. This is important because as ADER grows (it will), we will need to consider concentration effects. In the example: Whole load-zone SF: -0.012 DER aggregate A+C SF: +0.15 DER aggregate A+B SF: +0.133 That means the DER aggregate can have a materially different and even opposite congestion relationship from the load zone as a whole. DER exports versus imports: For transmission congestion purposes, a DER export and a load reduction are both a net injection relative to baseline at that electrical location. So if a device moves from importing 5 kW to exporting 5 kW, that is not merely a 5 kW change. It is a 10 kW swing in net injection at that node. The congestion impact is approximately: ΔFlow=SFlocation×ΔMW\Delta Flow = SF_{location} \times \Delta MWΔFlow=SFlocation×ΔMW For an aggregate: ΔFlowX=SFX×ΔMWX\Delta Flow_X = SF_X \times \Delta MW_XΔFlowX=SFX×ΔMWX So the aggregate shift factor tells the grid operator whether moving that fleet up or down helps or hurts a binding transmission constraint. The sign convention needs to be locked carefully, but conceptually: If DER injection at that location relieves the constraint, SCED should value/export-enable it. If DER injection worsens the constraint, SCED should curtail or dispatch it downward. If the fleet is charging or increasing load, the congestion effect reverses. #DER math 2.0

$ArushiSF's tweet photo. Okay so before #ADER was ADER we had this goofy name, Aggregate Injection Withdrawal Resource: AIWR. I killed THAT fast. I guess it could come back. But, you can enjoy the legacy name pictured on this marker board. 👇🏽 Anyway, a #DER #aggregation needs its own composite nodal shift factor, calculated as the weighted average of the shift factors of the electrical locations where its controllable MW actually sits. The weight should reflect the aggregate’s real dispatchable capability or telemetry by location, not merely the broad load-zone load distribution. Aggregate DER dispatch should not be priced or dispatched using a crude load-zone average if the DER fleet is concentrated at specific electrical locations. This is important because as ADER grows (it will), we will need to consider concentration effects. In the example: Whole load-zone SF: -0.012 DER aggregate A+C SF: +0.15 DER aggregate A+B SF: +0.133 That means the DER aggregate can have a materially different and even opposite congestion relationship from the load zone as a whole. DER exports versus imports: For transmission congestion purposes, a DER export and a load reduction are both a net injection relative to baseline at that electrical location. So if a device moves from importing 5 kW to exporting 5 kW, that is not merely a 5 kW change. It is a 10 kW swing in net injection at that node. The congestion impact is approximately: ΔFlow=SFlocation×ΔMW\Delta Flow = SF_{location} \times \Delta MWΔFlow=SFlocation×ΔMW For an aggregate: ΔFlowX=SFX×ΔMWX\Delta Flow_X = SF_X \times \Delta MW_XΔFlowX=SFX×ΔMWX So the aggregate shift factor tells the grid operator whether moving that fleet up or down helps or hurts a binding transmission constraint. The sign convention needs to be locked carefully, but conceptually: If DER injection at that location relieves the constraint, SCED should value/export-enable it. If DER injection worsens the constraint, SCED should curtail or dispatch it downward. If the fleet is charging or increasing load, the congestion effect reverses. #DER math 2.0$

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Ashutosh

@thegeo_sync

9 months ago

🚨 India’s Passive Coherent Location Radar (PCLR) – Anti-Stealth Capabilities India is advancing its Low Observable Detection Network (#LODN) to counter stealth aircraft and low-observable threats. A key component of this network is the Passive Coherent Location Radar (#PCLR), which works alongside systems like VHF-SR/LLLR and VostokD. 🔹 What is PCLR? •PCLR is a passive, multistatic radar system that does not emit its own signals. •It detects and tracks targets by using existing FM broadcast transmissions and reflections from targets. •Geographically separated receivers are used to triangulate and track objects. 🔹 Advantages of PCLR •Low-frequency operation: Highly effective in detecting stealth targets. •Completely passive: •Covert and hard to detect •Immune to anti-radiation missiles (ARMs) •Resistant to jamming 🔹 Current Status •The PCLR system is currently under integration trials, marking a significant step in strengthening India’s air defense and anti-stealth radar grid. 🔹 Significance By combining PCLR with VHF-SR/LLLR and VostokD, India is creating a robust multi-layered detection network capable of tracking even the most advanced low-observable aircraft, enhancing national security and airspace surveillance.

thegeo_sync's tweet photo. 🚨 India’s Passive Coherent Location Radar (PCLR) – Anti-Stealth Capabilities

India is advancing its Low Observable Detection Network (#LODN) to counter stealth aircraft and low-observable threats. A key component of this network is the Passive Coherent Location Radar (#PCLR), which works alongside systems like VHF-SR/LLLR and VostokD.

🔹 What is PCLR?
•PCLR is a passive, multistatic radar system that does not emit its own signals.
•It detects and tracks targets by using existing FM broadcast transmissions and reflections from targets.
•Geographically separated receivers are used to triangulate and track objects.

🔹 Advantages of PCLR
•Low-frequency operation: Highly effective in detecting stealth targets.
•Completely passive:
•Covert and hard to detect
•Immune to anti-radiation missiles (ARMs)
•Resistant to jamming

🔹 Current Status
•The PCLR system is currently under integration trials, marking a significant step in strengthening India’s air defense and anti-stealth radar grid.

🔹 Significance

By combining PCLR with VHF-SR/LLLR and VostokD, India is creating a robust multi-layered detection network capable of tracking even the most advanced low-observable aircraft, enhancing national security and airspace surveillance.

590

Defence Decode® @DefenceDecode

9 months ago

The Passive Coherent Location Radar (#PCLR) will also be a part of Indian “anti-stealth radar grid” or Low Observable Detection Network (#LODN) along with VHF-SR/LLLR and VostokD. #PCLR is a radar system that detects and tracks targets using opportunity FM broadcast transmissions (i.e., it does not emit any signals of its own). It is a passive, multistatic radar, meaning it relies on external transmissions and uses geographically separated receivers to detect targets. ▪️Low-frequency operation: ideal for detecting low observable (stealth) targets. ▪️Completely passive: making it: Covert (hard to detect), Immune to #ARM and resistant to jamming ✔️System is currently under the integration trials

DefenceDecode's tweet photo. The Passive Coherent Location Radar (#PCLR) will also be a part of Indian “anti-stealth radar grid” or Low Observable Detection Network (#LODN) along with VHF-SR/LLLR and VostokD.

#PCLR is a radar system that detects and tracks targets using opportunity FM broadcast transmissions (i.e., it does not emit any signals of its own).
It is a passive, multistatic radar, meaning it relies on external transmissions and uses geographically separated receivers to detect targets.
▪️Low-frequency operation: ideal for detecting low observable (stealth) targets.
▪️Completely passive: making it:
Covert (hard to detect), Immune to #ARM and resistant to jamming
✔️System is currently under the integration trials

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