Today’s Solutions: December 21, 2025

Ikea storefront view from parking lot

Ikea US will soon be offering consumers solar panels

Soon, shoppers in the US at Ikea will be able to buy more than just cute household furniture and accessories. Ikea announced an exciting new product in a press statement: solar panels. The Swedish home and living giant partnered with SunPower, a California-based company that sells and installs Read More...

man installing solar rooftop panels against bright blue sky

Europe may launch plan requiring solar panels on all public buildings by 2025

Countries are speeding up efforts to transition to 100 percent renewable energy sources, not just for the sake of the climate, but also to build independence from Russian petroleum. Germany accelerated its own schedule to become 100 percent renewable, seeing the danger to its energy sector that Read More...

Solar panel at night

Nocturnal solar panels: not an oxymoron

While trying to do the impossible might seem like magical thinking, in many cases, it is simply science that hasn’t broken through yet. In the case of solar panels, it might seem counterintuitive to try to use them at night. This too, though, has been proven possible.  An engineering team Read More...

honeycomb solar panel

Ultrathin "honeycomb" solar panels achieve record efficiency

One day, cities and hopefully everything else will be powered by renewable resources like wind and solar. To do that, though, we will need to continue to improve on our renewable tech, like creating solar panels that can absorb solar energy in many different levels of sunlight. A new development Read More...

Broken solar panel

How do solar panels break? And how do we fix them?

At the National Renewable Energy Laboratory (NREL) in Golden, Colorado, teams of scientists and researchers spend large parts of their day jumping on, twisting, smashing, and generally coming up with various ways of breaking solar panels.  It’s not malice, it’s not incompetence. It's not Read More...

The battery-free dandelion seed inspired device, powered by solar panels, seen in black in the middle.

These battery-free sensors fly like dandelion seeds

Wireless sensors are a versatile technology used to measure all sorts of conditions, without the restraint of being attached to a stationary object the whole time. They have many applications such as in medicine - like this wireless sensor which monitors bone health - or in measuring environmental Read More...

Cleaning solar panels

This is how we could clean our solar panels without water

The water footprint of solar power may rarely come to mind. It should because cleaning the dust off of photovoltaic panels requires hundreds of millions of gallons of water per year. In a bid to come up with a solution, MIT scientists have recently invented an alternative cleaning system that Read More...

solar panels in dry hot California

California shades irrigation canals with solar panels to boost energy and save water

Solar energy is one of the fastest-growing renewable energy industries in the world, however, that doesn’t mean that we aren’t faced with challenges in the widespread implementation and harvesting of solar power. One of the biggest issues with solar energy is that the land that is usually ideal Read More...

MVRDV's Sun Rock with sun setting behind the horizon

This solar panel covered building reflects Taiwan’s green energy transition

Most projects designed by the Dutch architecture firm MVRDV tend to leave a lasting impression on whoever lays their eyes on them. The company's upcoming project, Sun Rock, is no exception. Designed for Taiwan’s government-owned power company Taipower, the project takes the form of a building Read More...

These sustainably powered home

These sustainably powered homes can raise families out of poverty

Finding and sharing positive ways to tackle the world’s challenges is our favorite activity at The Optimist Daily, so it’s no surprise that we are especially excited about BillionBricks and Architecture Brio’s PowerHyde solar homes, as they tackle both the global housing issue and the climate Read More...