Solar Power

Integrating Photovoltaics with Crop Production

As countries race to expand renewable energy infrastructure, balancing clean electricity production with land use for food remains a pressing challenge — especially in Japan, where mountainous terrain limits space. A recent study led by researchers from the University of Tokyo explores a promising solution: integrating solar panels with traditional rice farming in a practice known as agrivoltaics. Read on to learn more.

Lighter and More Flexible Solar Cells Achieve the Highest Efficiency

The Korea Institute of Energy Research has successfully developed ultra-lightweight flexible perovskite/ CIGS (copper indium gallium selenide) tandem solar cells and achieved a power conversion efficiency of 23.64 percent, which is the world’s highest efficiency for flexible perovskite/CIGS tandem solar cells reported to date. Read on to learn more.

New Triple-Junction Tandem Solar Cells with Increased Power Efficiency

Researchers from the National University of Singapore have developed a novel triple-junction perovskite/Si tandem solar cell that can achieve a certified world-record power conversion efficiency of 27.1 percent across a solar energy absorption area of 1 sq cm, representing the best-performing triple-junction perovskite/Si tandem solar cell thus far. Read on to learn more.

How to Make Data Centers More Efficient

An innovative method developed by a team at Rice University uses solar collectors for turning waste heat from data centers into reusable electrical energy.

Black Metal Could Give a Heavy Boost to Solar Power Generation

In the quest for energy independence, researchers have studied solar thermoelectric generators (STEGs) as a promising source of solar electricity generation. Unlike the...

Flexible Silicon Photovoltaics: A Breakthrough in Space-Grade Solar Power

In-space manufacturing is expected to become a core part of future space economy by using assets in orbits or beyond Earth orbit for use in space. Tech Briefs interviewed space-focused solar energy startup Solestial’s CTO Stanislau Herasimenka about the key technology developments leading to this increased momentum for space-based manufacturing and the role solar power will play in it. Read on for the full interview with Herasimenka, edited for length and clarity.

Developing Durable Solar Panels Without Silicon

Using a new technology, Juan-Pablo Correa-Baena's lab has found a way to stabilize perovskite solar cells, which are built like a battery. Read on to learn more.

How Much Do You Know About Power Semiconductors?

Without power semiconductors there would be no solar power, wind power, EVs, automated factories, computers, or smart phones, to name a few. Take this quiz to see how much you know about them.

Making Transparent Solar Cells Manufacturable

In an important step toward bringing transparent solar cells to home windows, researchers at the University of Michigan have developed a way to manufacture highly efficient and semitransparent solar cells. Read on to learn more about it.

Power Line Test Bed Energizes Technologies for Increasing Grid Capacity

As population growth and extreme temperatures strain the United States power grid, utilities and equipment manufacturers are looking for ways to increase the amount of...

How Much Do You Know About Solar Power?

Solar power is the conversion of energy from sunlight into electricity. How much do you know about solar power? Test your knowledge with this quiz.

Videos of the Month

See the videos of the month, including one on Michigan Engineering racing its 17th solar car, Astrum, across the Australian Outback; one on how NASA’s Europa Clipper — a 7,000-pound spacecraft — was packed and shipped from the agency’s Jet Propulsion Laboratory in Southern California to Kennedy Space Center in Florida; one on the MIT Media Lab’s Space Exploration Initiative; and one on leveraging precision growth to convert plants into biodegradable electronic devices.

Wearable Solar Concentrators

The novel solar concentrators can be applied to textile fibers without the textile becoming brittle and susceptible to cracking or accumulating water vapor in the form of sweat. Read on to learn more.

A Metamaterial that Traps, Amplifies Micro-Vibrations in Small Areas

The Korea Research Institute of Standards and Science has developed a metamaterial that traps and amplifies micro-vibrations in small areas. This innovation is expected to increase the power output of energy harvesting, which converts wasted vibration energy into electricity, and accelerate its commercialization. Read on to learn more.

Computer Simulations for Better Solar Cells

Perovskite materials may degrade quickly, and in order to know how best to apply these materials, a deeper understanding is required of why this happens and how the material functions. Researchers have gained new insights into the matter. Read on to learn more.

Medium-Voltage Converters Can Replace Grid Transformers

To electrify everything from vehicles to heating systems to stovetops, the U.S. grid must expand by about 57% and get more flexible, too. Solar and wind energy are the renewables most...

Harnessing Wind and Solar Power Via Neural Networks

The team hopes this project can better position renewable energy as the primary source of electricity in the industry sector. The project aims to enable researchers and renewable energy installation companies to determine the optimal number of solar panels and wind turbines needed to prevent over or under production.

Mimicking 'Plant Power' Through Artificial Photosynthesis

According to the researchers, this proof-of-concept system could be adapted to help produce precursors for plastics or other chemical feedstocks, as well as scaled up to produce larger amounts of sustainable biofuels.

My Opinion: Energy Storage, Part 2

My opinion: I take a look at some cases where it makes sense to use non-battery methods to store energy.

Developing Next-Gen Solar Cells

Meet perovskite. The synthetic semiconducting material has the potential to convert substantially more solar power than silicon at a lower production cost.

Heating Buildings with Solar Energy Stored in Sand

Affordable thermal storage could help industries and cities capture heat that is currently wasted, as well as balance the inconsistencies in wind and solar power output. But while Polar Night Energy is eager to work directly with potential customers, they realize that the challenges ahead are too big for them to tackle alone.

An All-Liquid Iron Flow Battery for Better Energy Storage

Flow batteries can serve as backup generators for the electric grid. Flow batteries are one of the key pillars of a decarbonization strategy to store energy from renewable energy resources. Their advantage is that they can be built at any scale, from the lab-bench scale, as in this PNNL study, to the size of a city block.

My Opinion: We Should Take a Broad View of Energy Storage

My opinion: We need a holistic approach to energy storage — we should start with the general category and then analyze the pros and cons of different technologies to solve different problems.

A Flexible and Efficient DC Power Converter for Sustainable Energy Microgrids

Electric power comes in two kinds, AC and DC. Famously, the question over which kind should be used for national power grids, the “Current War” of the late...