一年前我读了《The Case for Space Solar Power》这本书，里面对工程细节进行了深入探讨。70 年代那些老旧的空间太阳能电站（SPS）设计全都是庞然大物，造价会高到离谱。而目前的设计则会采用大量完全相同的…
A year ago I read the book The Case for Space Solar Power, which goes into the engineering in detail. The old SPS designs from the '70s were monolithic beasts that would have been ridiculously expensive. Current designs would use a large number of identical…
…地球同步轨道。如果 SpaceX 真能实现他们为 BFR 承诺的极低发射成本，那么结合现有的太阳能电站卫星设计，这在经济上看起来出奇地划算；关于这个主题有本好书叫《The Case for Space Solar Power》：https://www.amazon.com/Case-Space-Solar-Power-ebook/dp/B00HN...
…geosynchronous orbit. If SpaceX delivers on the extremely low launch cost they're promising for the BFR, this looks surprisingly economical with current solar power satellite designs; a good book about this is The Case for Space Solar Power: https://www.amazon.com/Case-Space-Solar-Power-ebook/dp/B00HN...
…庞然大物，但现在的设计使用的是大量在轨道上自主组装的同类部件（有几种规格），这样你就能通过工厂化生产获得规模效应。一年前我读了《The Case for Space Solar Power》[2]这本书，里面详细拆解了成本。按 SpaceX 之前的发射成本来算，包括制造和地面站在内，电价折合 15 美分/千瓦时。我把马斯克宣称的 BFR 成本代进去算了一下（我记得我用的是…
…monolithic beasts, but current designs use lots of identical parts (of several varieties) that self-assemble in orbit, so you get economies of scale with factory production. A year ago I read the book The Case for Space Solar Power [2], which broke down the costs in detail. With pre-SpaceX launch costs they got 15 cents/kWh, including manufacturing and ground stations. I plugged in the BFR cost Musk was claiming (I think I used…
不需要把微波辛辛苦苦发回地球的太空太阳能卫星，这可能真的可行。《The Case for Space Solar Power》这本书详细推算了现代太空太阳能卫星的工程成本，得出规模化后的成本是 15 美元/千瓦时。那还是在 SpaceX 之前。我代入了星舰（Starship）的成本，结果只要 4 美分/千瓦时。其中，…
Solar power satellites without all that tedious beaming of microwaves back to Earth. It might actually work. The book The Case for Space Solar Power runs through detailed engineering costs for modern solar power sats, and came up with a cost of $15/kWh at scale. That was before SpaceX. I plugged in Starship costs and it came to 4 cents/kWh. Of that,…
…https://space.nss.org/sps-alpha-a-novel-approach-to-space-so... 以及该研究本身：https://www.nasa.gov/directorates/spacetech/niac/2011_Practi... 专门深入探讨现代 SPS 设计的书籍是《The Case for Space Solar Power》。书中列出了详尽的成本数据，不过写书时 SpaceX 还没搞出太大名堂，当时估计吉瓦级规模的成本是 15 美分/千瓦时。我代入了星舰的发射成本，算出来只有 4 美分/千瓦时，这…
…https://space.nss.org/sps-alpha-a-novel-approach-to-space-so... and the study itself: https://www.nasa.gov/directorates/spacetech/niac/2011_Practi... A book-length treatment of modern SPS designs is The Case for Space Solar Power. It has detailed cost figures but was written before SpaceX had accomplished much, estimating a cost at gigawatt scale of 15 cents/kWh. I plugged in Starship launch costs and it came to 4 cents/kWh, which…
…进行量产。我把 SpaceX 星舰的发射成本代入书里的估算模型，算出的系统总成本是 5 美分/千瓦时，对于这种不需要储能的稳定清洁能源来说相当不错了。[1] John Mankins 写的《The Case for Space Solar Power》
…mass-produce them. I plugged SpaceX Starship launch costs into the book's estimate and got a total system cost of 5 cents/kWh, which is pretty good for steady clean power that doesn't need storage. [1] The Case for Space Solar Power by John Mankins
一年前我读了《The Case for Space Solar Power》这本书，里面对工程细节进行了深入探讨。70 年代那些老旧的空间太阳能电站（SPS）设计全都是庞然大物，造价会高到离谱。而目前的设计则会采用大量完全相同的…
A year ago I read the book The Case for Space Solar Power, which goes into the engineering in detail. The old SPS designs from the '70s were monolithic beasts that would have been ridiculously expensive. Current designs would use a large number of identical…
…地球同步轨道。如果 SpaceX 真能实现他们为 BFR 承诺的极低发射成本，那么结合现有的太阳能电站卫星设计，这在经济上看起来出奇地划算；关于这个主题有本好书叫《The Case for Space Solar Power》：https://www.amazon.com/Case-Space-Solar-Power-ebook/dp/B00HN...
…geosynchronous orbit. If SpaceX delivers on the extremely low launch cost they're promising for the BFR, this looks surprisingly economical with current solar power satellite designs; a good book about this is The Case for Space Solar Power: https://www.amazon.com/Case-Space-Solar-Power-ebook/dp/B00HN...
…庞然大物，但现在的设计使用的是大量在轨道上自主组装的同类部件（有几种规格），这样你就能通过工厂化生产获得规模效应。一年前我读了《The Case for Space Solar Power》[2]这本书，里面详细拆解了成本。按 SpaceX 之前的发射成本来算，包括制造和地面站在内，电价折合 15 美分/千瓦时。我把马斯克宣称的 BFR 成本代进去算了一下（我记得我用的是…
…monolithic beasts, but current designs use lots of identical parts (of several varieties) that self-assemble in orbit, so you get economies of scale with factory production. A year ago I read the book The Case for Space Solar Power [2], which broke down the costs in detail. With pre-SpaceX launch costs they got 15 cents/kWh, including manufacturing and ground stations. I plugged in the BFR cost Musk was claiming (I think I used…
不需要把微波辛辛苦苦发回地球的太空太阳能卫星，这可能真的可行。《The Case for Space Solar Power》这本书详细推算了现代太空太阳能卫星的工程成本，得出规模化后的成本是 15 美元/千瓦时。那还是在 SpaceX 之前。我代入了星舰（Starship）的成本，结果只要 4 美分/千瓦时。其中，…
Solar power satellites without all that tedious beaming of microwaves back to Earth. It might actually work. The book The Case for Space Solar Power runs through detailed engineering costs for modern solar power sats, and came up with a cost of $15/kWh at scale. That was before SpaceX. I plugged in Starship costs and it came to 4 cents/kWh. Of that,…
…https://space.nss.org/sps-alpha-a-novel-approach-to-space-so... 以及该研究本身：https://www.nasa.gov/directorates/spacetech/niac/2011_Practi... 专门深入探讨现代 SPS 设计的书籍是《The Case for Space Solar Power》。书中列出了详尽的成本数据，不过写书时 SpaceX 还没搞出太大名堂，当时估计吉瓦级规模的成本是 15 美分/千瓦时。我代入了星舰的发射成本，算出来只有 4 美分/千瓦时，这…
…https://space.nss.org/sps-alpha-a-novel-approach-to-space-so... and the study itself: https://www.nasa.gov/directorates/spacetech/niac/2011_Practi... A book-length treatment of modern SPS designs is The Case for Space Solar Power. It has detailed cost figures but was written before SpaceX had accomplished much, estimating a cost at gigawatt scale of 15 cents/kWh. I plugged in Starship launch costs and it came to 4 cents/kWh, which…
…进行量产。我把 SpaceX 星舰的发射成本代入书里的估算模型，算出的系统总成本是 5 美分/千瓦时，对于这种不需要储能的稳定清洁能源来说相当不错了。[1] John Mankins 写的《The Case for Space Solar Power》
…mass-produce them. I plugged SpaceX Starship launch costs into the book's estimate and got a total system cost of 5 cents/kWh, which is pretty good for steady clean power that doesn't need storage. [1] The Case for Space Solar Power by John Mankins