Correction: "negative until 6pm".
Duck curve on steroids....

The Australian South West Interconnected System (SWIS) has been regularly settling trades at negative values.
https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwa.aemo.com.au%2F

The negative prices started at 6am this morning and projected to be negative until 6am.
This is with Perth experiencing a heat wave (43.4C / 110F), obviously not enough air conditioning being used...

Took the UK a year to achieve what happens here in two weeks.

Specifically for the purge / prime tower the printer itself does not implement the patent, that is done by the software which the user downloads and installs on their machine.

The "Letter of Patent" provides protection against others from importing and selling a product that implements the patent.Providing BambuLab does not host the server providing the software (BambuStudio) in the United States it is then the end user who imports the offending product.

Is Stratasys going to sue every single BambuLab printer owner?
I hope they have some brain cells prior to doing something like this - such as an exemption for hobbyists.

I hope not - kids these days don't know how to configure an IPX network.

Specifically small scale solar installations (residential roof top installations).

Solar panels work very well with air conditioners as the bulk of the AC load lines up with the peak production of solar panels.

Providing you have an inverter style AC (not sure on the popularity in the US but certainly in Australia it is a common feature) the compressor is constantly running but the load is nearly constant (not cycling on/off). The amount of solar panels should be sized for the average day-time summer load, extra panels are a waste of money as practically all electricity retailers (globally) pay next to nothing for any electricity exported.

Providing the house has been kept cool during the day then turn off the AC at 5pm (or whenever the power tariff jumps up due to the duck curve) and coast through the evening.

There is a interesting quirk of gas turbines is that they burn roughly a third of the full load gas rate just to be spinning at line frequency speed.

For remote sites (isolated power grids) this generally means that a minimum of one gas turbine (equivalent) of load needs to be available at all times should a gas turbine trips. By adding a battery system that can supply the load of one gas turbine for a period of 45 minutes allows the site to shut down one of the gas turbines and improve the overall efficiency.

This is how a battery can reduce CO2 emissions but most of the time do absolutely nothing, it is there for a couple times a year to provide enough time to start the standby gas turbine.

From what I can find 4 hours x (110MW + 60MW) = 680 MWh

Some parts of the world pine is not as plentiful as North America and other building materials are used in preference such as bricks.

There is a robot for laying bricks:
https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.fbr.com.au%2Fview%2Fha...

Some further background information which explains the origin of the Australian study, courtesy of the Australian Broadcasting Corporation

Mick Tisbury's 12-year fight to protect firefighters from PFAS toxic foam contamination

Apparently the issue with PFAS is that it accumulates in the blood plasma and it affects men more than women (due to "that time of the month").

Draw blood from the patient on a regular basis and dispose of in a suitable high temperature incinerator.

Effect of Plasma and Blood Donations on Levels of Perfluoroalkyl and Polyfluoroalkyl Substances in Firefighters in Australia
https://ancillary-proxy.atarimworker.io?url=https%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fp...

Narrow beams spread faster than a wide beam due to light diffraction issues. Therefore you need to use something like a telescope to ensure that all the power arrives within whatever diameter spot that you are shining into orbit.

Last time I checked Mount Fuji was an active volcano, not a great place for a telescope.
Mount Stromlo is a little higher than Canberra (768m).

For the software shop that historically broke even, they should be claiming that they are providing services rather than selling software. It is highly likely that the software they are selling is highly configured to match one or two customers.

As a fuel ethanol is a poor choice long term as the majority (not all) light road vehicles will electric vehicles. Heavy road vehicles currently don't use ethanol (energy density too low) but too hard to guess where the future lies. Potentially the current EV focus is simply to stretch out the remaining oil resources so it is available for twice as long.

As a precursor for petrochemical feed-stock ethanol is a "greener" alternative to generating a significant proportion of plastic monomers. Heat ethanol over an alumina catalyst (around 200C - need to check the optimum temperature) and you get ethylene and water.

Ethylene => Polyethylene (HDPE, LDPE, etc)
Ethylene + Chlorine => Vinyl Chloride => PVC

The paper was written by the UK Health & Safety Executive (equivalent to OSHWA in the US?) justifying the need for regulating CO2 pipelines in a similar method to natural gas pipelines. There are a fair number of "guestimates" required as the number of CO2 pipelines is far smaller than natural gas pipelines but the conclusion that was being made was:
"Therefore in terms of both hazard and risk, CO2, when used for CCS, has sufficient toxicity to be regulated as a dangerous fluid under the Pipeline Safety regulations. This would then mean that CO2 pipelines would be subject to land-use planning controls."

The IChemE is the UK equivalent to the AICheE in the US (chartered chemical engineers association) and the paper was presented at one of the regular chemical safety focused conferences.

Apparently the fuel cost to reach the graveyard orbit it equivalent to 3 months of keeping the satellite "on-station".

The fine may need to be adjusted to be equivalent of 2 years of "economic benefit"of continued operation to provide sufficient incentive for companies to "do the right thing".