Mirrors in Space for Low-Cost Terrestrial Solar Electric Power at Night

The latest addition to the NSS Space Solar Power Library is a paper by Lewis M. Fraas of JX Crystals Inc, Issaquah, WA, on “Mirrors in Space for Low-Cost Terrestrial Solar Electric Power at Night.” An abstract is below; the link goes to a PDF of the full paper.

Abstract: A constellation of 18 mirror satellites is proposed in a polar sun synchronous dawn to dusk orbit at an altitude of approximately 1000 km above the earth. Each mirror satellite contains a multitude of 2 axis tracking mirror segments that collectively direct a sun beam down at a target solar electric field site delivering a solar intensity to that terrestrial site equivalent to the normal daylight sun intensity extending the sunlight hours at that site at dawn and at dusk each day. Each mirror satellite in the constellation has a diameter of approximately 10 km and each terrestrial solar electric field site has a similar diameter and can produce approximately 5 GW per terrestrial site. Assuming that in 10 years, there will be approximately 40 terrestrial solar electric field sites evenly distributed in sunny locations near cities around the world, this system can produce more affordable solar electric power during the day and further into the morning and evening hours. The typical operating hours or power plant capacity factor for a terrestrial solar electric power site can thus be extended by about 30%. Assuming a launch cost of $400/kg as was assumed in a recent NASA Space Power Satellite study for future launch costs, the mirror constellation pay back time will be less than 1 year.

Share:

Facebook
Twitter
Pinterest
LinkedIn
National Space Society

National Space Society

Leave a Comment

Search
Categories
future 1

Don't Miss a Beat!

Be the first to know when new articles are posted!

Follow Us On Social Media

JOIN THE
GREATEST ADVENTURE

Give The Gift Of Space: Membership For Friends and Family

Book Review

Archives

ISDC 2024:
A NEW SPACE AGE

International Space Development Conference May 23rd-26th, 2024

FEATURED BLOG

Image of Kalpana One space settlement courtesy Bryan Versteeg, spacehabs.com $32,000 in Cash Awards Given for Best Space-Related Business Plans — Deadline March 1, 2024

Category: Nonfiction Reviewed by: John J. Vester Title: Nuclear Rockets: To the Moon and Mars Author: Manfred “Dutch” von Ehrenfried Format: Paperback/Kindle Pages: 270 Publisher:

Partially Successful Flight Reached Space and Demonstrated New “Hot Staging” System The National Space Society congratulates SpaceX on the second test of its Starship/Super Heavy

Ad Astra, the NSS quarterly print, digital, and audio magazine, has won a 2023 MARCOM Gold Award. The awards are given yearly for “Excellence in

By Jennifer Muntz, NSS Member Coordinator On October 10th, an inspiring breakfast event took flight at the Center for Space Education at the Kennedy Space

By Grant Henriksen NSS Policy Committee Benefit sharing is a concept that refers to the distribution of benefits derived from the exploration and use of

People residing and working in space, space settlements, or on long-duration space flights will need to produce infrastructures and food to maintain healthy lifestyles. The

Image: Artist’s concept of the Blue Moon lander. Credit: Blue Origin. Second Human Landing System Contract Encourages Competition and Innovation The National Space Society congratulates