River Dog wrote:Solar and wind have problems. Solar is OK for space applications as it can get constant exposure to the sun. But for terrestrial power production, it is not a reliable source as it is obviously dependent on the sun shining. Wind has the same problem as it is not a constant source, and thus, neither can be ramped up to meet demand. And especially in the case of wind, they take up a huge amount of 3-dimensional space, cause problems for fighting wildfires, are an environmental hazard for several species of birds, and a lot of people don't like looking at them.
Modular nuclear reactors are coming. They make way too much sense not to. But before we get into fusion reactors, which is still a decade or more away from fruition, there are much cheaper and safer fission reactors in the works that utilize off the shelf technology, are a lot closer to being shovel-ready than fusion and have all sorts of advantages over so-called renewable sources. They have small footprints, are much safer to operate and cheaper to build, can be located close to existing substations so they don't require a huge, new grid network, don't have to be way off in the boondocks like wind and solar, reducing transmission loss. I've seen some reactors that are small enough that they can be transported to the site on the back of a flatbed truck, which makes them ideal for remote areas, islands, etc. And unlike wind and solar, they're more reliable as they don't have to rely on mother nature's cooperation and provide base-load electricity that can be adjusted to meet demand. Amazon, of all companies, is partnering with the utility that operates the PNW's only operating nuclear reactor here in the Tri Cities:
https://www.energy-northwest.com/whowea ... ngton.aspxThe one good thing that the Biden Administration has done was to provide tax breaks for these projects. I wish the hell our state government would get behind these small, safe modular reactors and forget about this massive wind project with turbines taller than the Space Needle and that stretch some 24 miles across the skyline that nearly 80% of the local residents, including the NA tribes, don't want. It's a huge issue in this neck of the woods.
The country needs to get over the paranoia we've developed about anything nuclear. These modular reactors offer a real promise of getting off the burning of fossil fuels while meeting an increasing demand for electricity.
Here's another article about small, modular fission reactors:
https://interestingengineering.com/ener ... -sub-20-mw
Elon is focused on space, so solar is important to develop as it is the energy source most available in space.
Nuclear seems to be coming back as an option. I've been looking at portable, modular reactor companies, but they are pre-revenue and getting hyped up. I hate when company's stock price gets hype driven rather than fundamentally driven. That makes it very risky with a chance of huge losses, but there always seem to be some gamblers and traders who love to ramp the prices up to the point where investing is extremely risky. SMR stock is a modular reactor stock. Already a 2 billion plus valuation with no revenue. We will see how effective these modular reactors are, but they may be an option for space. The colonization of space will require a renewable energy source and likely some other sources for the initial build like a portable nuclear reactor which would provide the power to get up and running as you build out the solar power system to sustain the colony on another planet until you can determine if there are sufficient materials for some other power source to work.
Power in space has to be provided by the most abundantly available energy source, which would be the stars and sun. You can't be sure of a carbon-based energy system on another planet because with no life, they likely won't have had the massive death of carbon-based organisms which led to the abundance of oil. You can't even be sure of finding nuclear material for that energy source on other planets. Wind isn't assured in space either. So your main two option are solar and fusion which is decades away, if not longer.
Be fun to see a man on Mars before I die, but not sure they'll make that happen in that time frame. How I would love to come back to life in a 100 years just to see what humans have done by that time.
On top of making money, the amazing technology development by the business community is why I prefer the financial news over the mainstream news. They are always doing something interesting and offering other people the chance to invest in their endeavors and make money. Most Americans don't pay attention to it and watch he mainstream news making it seem like Donald Trump or whatever clown is running for office more important than people in the business community, but I've watched for years and the business community makes far more impact on our lives than whoever is president. Jeff Bezos, Bill Gates, and Elon Musk have done more to change the world for the better than any president of the last 30 or 40 years. Presidents come and go, but these businesses make life changing technology that powers our future and changes our world. I'd rather keep track of it and make money on their pursuits than follow the clowns who end up in office mismanaging the government to the point no regular person could do because they just print more money and devalue our money and create an environment not particularly great for human success, while their manipulated followers pretend their candidate is better while they spend decades arguing over the same problems every single four year presidential cycle. One side cuts taxes, drives up the deficit and does nothing. The other side keeps spending and spending, drives up the deficit claims they can fix it by taxing the rich when they never, ever have fixed it regardless of how much they tax.
I'd rather see business people keep their money and make life better. The ones who built and scaled electricity, the internet, computers, television, food production, and just about everything else. If we colonize space, it's likely going to be because business people developed a plan, executed the plan, and scaled it for widespread, cost efficient use.