an event space… concert hall, whatever. The event space produces energy from solar and stores it on site as hydrogen. The site has a minimal production capacity for energy from hydrogen, but massive storage.
When hydrogen fuel cell powered cars, carrying people, show up at the event, they plug into the hydrogen power system. Each vehicle being refueled and used to produce extra power for the event.
While the event space sits idle, it produces energy for the local community.
Seeds are ideas for stories. They may never be developed.
You have a culture, whether someone gave it to you or you created it... it's there, wherever you go.
A dystopia where people who want to evade surveillance dress in bright contrasting colors which confuse the tracking systems. The rest of the world being shades of business gray.
The world became gray because people didn't want to draw attention or offend, this eventually led to color being removed as some color always offended someone.
Lonely single women solves all the problems of the world. The only record of it, happens to be surveillance of her muttering while she cleans her home. This audio is found a century later after people pick up the pieces of civilization and start figuring out what happened during the collapse.
Post apocalyptic story of a neo christian cult that believes the christians were raptured during the collapse of civilization... only to find out they were exterminated during the collapse for causing the planet's destruction.
All time travelers die from diseases, which they aren't adapted to.
Jesus is reborn, with the intention of saving humanity. As he grows, Jesus is bullied and intimidated for expressing compassion toward others. Abused throughout his life, he decides to take his own life to end his suffering, rather than save humanity which doesn't deserve saving.