Surur

Surur t1_j9y50l0 wrote

> safety is a really stupid thing to complain about

I'm not complaining, I am explaining why things change over time, and why old things become obsolete, and not due to a conspiracy by company employees.

For example - current thinking is that anytime you hit your head while wearing a safety helmet (e.g. from a bike or motorbike) you should replace the helmet, as it's designed to collapse and withstand only one blow.

Is that a conspiracy or due to increased safety expectations?

5

Surur OP t1_j9v8fjs wrote

Battery maker Hina Battery today unveiled three sodium-ion battery cell products and announced a partnership with Anhui Jianghuai Automobile Group Corp (JAC), which has made one of its models the first to carry sodium-ion batteries.

The unveiling of the Sehol E10X test vehicle means that sodium-ion batteries are starting to be used in passenger cars, after the new batteries were mainly used in electric two-wheelers and for energy storage.

The test vehicle has a battery pack with a capacity of 25 kWh and an energy density of 120 Wh/kg. The model has a range of 252 km and supports fast charging of 3C to 4C. The battery pack uses cells with an energy density of 140 Wh/kg.

The Sehol E10X is currently available in seven versions with a guide price range of RMB 46,900 ($6,810) to RMB 76,400.

In addition to the announcement of the sodium-ion battery-equipped test vehicle, Hina Battery today officially launched three sodium-ion battery cells.

These three types of cells are NaCR32140-ME12 cylindrical cell, NaCP50160118-ME80 square cell and NaCP73174207-ME240 square cell, with energy densities of 140 Wh/kg, 145 Wh/kg and 155 Wh/kg respectively. (Early LFP batteries had energy densities of around 160 Wh/kg).

According to Li Shujun, general manager of Hina Battery, the company's sodium-ion batteries are geared to mainstream market demand and have the advantages of long life, wide temperature range and high power, and are ready for mass production.

The company is advancing cooperation with a number of leading companies, and these sodium-ion battery products will be widely used in two-wheelers, passenger cars, commercial vehicles, home and commercial and industrial energy storage, and large-scale energy storage, he said.

6

Surur t1_j9t7xlj wrote

It's confirmed, the only question is when (which if course could be years with Tesla):

> During the 2022 Q3 financial report, Elon Musk confirmed that Tesla has begun developing a smaller, cheaper EV that could be an alternative to the Volkswagen ID3 and Cupra Born.

> He said: “We’ve done the engineering for Cybertruck and Semi, so you can guess what we’re working on which is the next generation vehicle which will be about half the cost of the Model 3 and Y.

> “It will be smaller to be fair, but I think it will shortly exceed production of all our other vehicles combined.”

https://www.carwow.co.uk/tesla/news/5220/new-tesla-ev-compact-electric-car-hatchback-price-specs-release-date

10

Surur t1_j9sloqf wrote

I personally believe any responsive system is conscious to a degree, reflected by their ability to sense, compute and respond. The more complex and rich that space is, the more conscious the system is.

For example a light switch is conscious of its state, on and off, while the tokyo subway station is not as conscious as a cell, as it has fewer inputs, fewer actions and fewer responses, but a lot more conscious than the light switch.

3

Surur OP t1_j9o27fr wrote

The first commercial spiral-welded 89-meter wind turbine tower has begun operation, built by GE Renewable Energy and wind turbine producer Keystone Tower Systems.

Spiral welding is when the steel used to make the tower is curled into a cylinder; essentially, these towers are built from meters-wide steel plates. The technique requires only one machine to construct a tower section, and it can produce towers up to twice as tall and 10 times faster than conventional towers.

The manufacturing process uses coil steel – flat-rolled steel that’s been coiled up into a roll or coil shape and allows tapered towers with variable wall thickness to be manufactured from constant width sheets of steel.

The manufacturing equipment completes the joining, rolling, fit-up, welding, and severing of a tower section – and that results in the continuous production of steel tower shells:

Keystone says it can make the lightest, lowest-cost, and most structurally optimized towers in the wind turbine industry.

Keystone is also developing mobile factories capable of building taller towers directly at wind sites.

Production is now being ramped up of spiral-welded towers, with additional deliveries targeted for the first quarter of 2023. They’ll make more towers for the GE 2.8-127 turbine, and they can be used interchangeably with GE’s conventional 89-meter-tall tower. The spiral tower has received a component certification from TÜV NORD for a 40-year lifetime.

See a video about the process here.

https://youtu.be/ufu8f1PWYzE


Building towers 10x faster, cheaper and onsite should mean a much-increased onshore wind turbine installation capacity, speeding the transition to renewable energy.

4