Desenvolvida por um programador independente, a Helys usa uma fórmula científica que considera o seu tipo de pele, localização, hora do dia, condições meteorológicas e índice UV para calcular, em tempo real, quanto tempo de exposição solar é seguro e suficiente. Disponível gratuitamente apenas para iOS.

The post Helys: a app que calcula o tempo exato que deve passar ao sol para produzir vitamina D sem riscos appeared first on Tek Notícias.

America’s 250th birthday on July 4th marked the last day to “safe harbor” a new solar project and still get the 30% solar tax credit – a milestone that many feared would mean the death of home solar. 28 days (ish) later, though, the industry is anything but dead.

The Tren Solar de la Quebrada is Latin America’s first primarily solar-powered passenger train, carrying tens of thousands of travelers through the UNESCO World Heritage-listed Quebrada de Humahuaca with the power of the sun.

Estamos a poucos dias do eclipse solar mais aguardado das últimas décadas em Portugal, e a Sun Surveyor, uma excelente ferramenta para fotógrafos, poderá ser a ferramenta perfeita para prever a posição exata do Sol e a escolher o melhor local para observar o fenómeno em segurança.

The post Sun Surveyor Lite: saiba onde vai estar o Sol para não falhar o eclipse solar de 12 de agosto appeared first on Tek Notícias.

Tesla has signed a long-term deal to buy 90% of the output of Project Sterling, a big solar and battery plant going up in Arizona.

The project pairs 509 MW of solar with a 360 MW battery, and it’s being built by ContourGlobal, the power producer owned by private equity firm KKR. It’s expected online in 2028.

Tesla has signed a long-term power purchase agreement to buy the entire output of a 140-MWac solar farm being built in northeast Texas.

The plant, called Lumen Farm, is being developed by Zelestra, an EQT-backed renewable developer. Construction is expected to start in 2027, with the farm going online in 2029.

A Reddit post making the rounds this week claims the US has experienced at least one major power outage every month of 2026 – but is it true? I dug into several outages, the extreme weather behind them, and what we can do to help keep the lights on.

Elon Musk has quietly bought APR Energy, a Jacksonville-based company that operates a fleet of mobile gas and diesel turbines totaling more than 1 GW of generation capacity.

The self-styled champion of a “solar electric economy” now owns a fossil fuel power company — and he’s buying it to feed the electricity-hungry data centers running xAI’s Grok.

There’s no shortage of advice on how to size a home solar and battery system, but most of it assumes a suburban home with city services and outages measured in hours, not days. Rural homes play by different rules, especially during summer storms. When heavy winds take down power lines and your utility prioritizes restoring urban neighborhoods first, having a home battery isn’t about convenience — it’s about damage control.

Drew Baglino spent nearly two decades building Tesla’s batteries, motors, and power electronics. Now the former Tesla SVP is quietly building the one home energy product Tesla talked up for years and never shipped: a residential heat pump.

His startup, Sadi Thermal Machines, is a direct bet on an idea Tesla floated openly in 2022 — before the company reoriented itself around humanoid robots and robotaxis.

With less than a month left before the key, July 4th Federal Clean Energy tax-credit deadline, a federal judge has handed the solar industry an unexpected win, restoring the 5% safe harbor that Trump’s IRS tried to kill.

Last month, the Bellevue Gold mine did something that was previously unthinkable. For over 155 consecutive hours – a full six-and-a-half day work week – the mine operated on 100% renewable energy. The future is now, kids: engines off!

The window to claim a 30% tax credit on your solar panel project is closing July 4th, which means you’ve got just one month left to safe harbor your project and preserve your eligibility – keep reading to find out how.

Battery energy storage specialist ELM MicroGrid has spent more than two decades building a nationwide energy storage and utility infrastructure businesses. Now, the company is bringing that expertise home with the installation of a new battery energy storage system at a solar microgrid project in Peoria, IL.