Social Wall: Explore the Best Trends in Sustainable Energy!

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نجحت شبكة الكهرباء المصرية في استيعاب أكبر طلب على الطاقة في تاريخها بعدما سجلت الأحمال اليوم الثلاثاء مستوى قياسيًا بلغ 40 ألف ميجاوات.

وتشير تقديرات سابقة إلى أن شبكة الكهرباء المصرية قادرة على استيعاب أحمال تصل إلى نحو 65 ألف ميجاوات دون الحاجة إلى تخفيف الأحمال مقابل قدرة لم تتجاوز نحو 25 ألف ميجاوات في عام 2014 فيما تخطط مصر لرفع هذه القدرة إلى نحو 120 ألف ميجاوات خلال الـ14 عامًا المقبلة بالتزامن مع تشغيل محطة الضبعة النووية والتوسع في إنشاء محطات الطاقة الشمسية ومزارع الرياح.

التفاصيل كاملة أول تعليق. ... See MoreSee Less

Orbital Marine Power Plans 15 MW Floating Tidal Array in Canada's Bay of Fundy

Orbital Marine Power and its Canadian partner Eauclaire Tidal are developing a floating tidal energy project at the Fundy Ocean Research Centre for Energy (FORCE) in Nova Scotia. The project will use Orbital's next-generation O2-X floating tidal turbines to generate renewable electricity from the Bay of Fundy's powerful tidal currents.

The project has a planned total capacity of 15 MW, consisting of six O2-X turbines, each rated at approximately 2.5 MW. The turbines will be deployed in phases, with an initial 7.5 MW array of three turbines before expanding to the full six-turbine installation.

The project is still in the development and permitting phase and is not yet generating electricity. In 2025–2026, the partnership secured power purchase agreements, marine licences, and regulatory approvals, allowing the first three turbines to move toward deployment.

Each 2.5 MW O2-X turbine is expected to generate enough predictable renewable electricity to power around 2,000 homes, meaning the full 15 MW array could supply electricity equivalent to about 12,000 homes, depending on operating conditions.

The Bay of Fundy has some of the world's strongest tidal currents, making it one of the best locations for tidal power. Once completed, the Orbital project is expected to become Canada's largest floating tidal energy array and one of the world's largest commercial tidal stream projects.

Sources:
Orbital Marine
NOVA Innovation
Recharge News
TETHYS ... See MoreSee Less

Water availability identified as key constraint for //Kharas green hydrogen development

Staff Reporter

WATER availability in the //Kharas Region has been highlighted as the primary technical constraint for green hydrogen development, with coastal areas supported by desalination and locations near the Neckartal Dam emerging as the most feasible sites for electrolysis facilities, while inland areas remain more constrained and vulnerable to cumulative pressures.

This was highlighted in the recently released Strategic Environmental and Social Assessment (SESA) for Green Energy Production and Industrialisation in the Southern Corridor Development Initiative (SCDI). The assessment provides a strategic, national-level overview of the environmental risks, constraints and opportunities associated with Namibia’s emerging green hydrogen sector.

“Green hydrogen production is water-intensive, requiring a reliable supply for electrolysis and cooling, with total raw water demand substantially exceeding the volume required for high-purity electrolysis due to treatment losses,” the report highlights.

The report notes that, while seawater desalination is expected to serve as the primary water source for green hydrogen projects, additional abstraction from regulated systems such as the Neckartal Dam — subject to further feasibility assessments — and groundwater use for construction activities, dust suppression and workforce needs could place further pressure on already limited freshwater resources.

“Infrastructure development may also disrupt hydrological processes by altering ephemeral drainage lines, compacting soils, reducing infiltration, and increasing runoff and erosion, particularly in inland areas with low hydrological resilience. Where desalination is employed, marine impacts associated with brine discharge, thermal and chemical changes, and nearshore construction activities require careful management in ecologically sensitive coastal environments,” the report continues.

The report explains that, at the strategic level, water-related impacts are unlikely to be driven by individual projects alone, but rather by the cumulative effects of multiple developments concentrated within technically favourable zones.

“Over time, combined abstraction, infrastructure proliferation and hydrological modification may intensify regional water stress, heighten competition among industrial, agricultural and municipal users, and reduce system resilience to drought and climate variability,” the report adds.

The report notes that impacts on water resources are most significant where developments rely on shared freshwater sources, are located in areas with low aquifer potential, or disrupt key hydrological processes. This reinforces the need for avoidance-led spatial planning, integrated water resource management and strong cumulative impact governance at both strategic planning and project levels.

“Climate change is expected to further increase water sensitivity across the region by intensifying drought frequency, raising evaporation rates, and increasing uncertainty in long-term supply reliability. Rising temperatures increase atmospheric moisture demand, accelerating evaporation and evapotranspiration from soils, surface water bodies, and vegetation, which reduces effective water availability even in the absence of significant declines in rainfall. In arid and semi-arid systems such as the //Kharas Region, this effect is particularly pronounced, as limited rainfall and low groundwater recharge already constrain baseline water availability,” the report warns.

Picture for illustrative purposes only. Photo: Contributed ... See MoreSee Less

وافق مجلس الوزراء على طلب شركة “ألكازار” الإماراتية لإنشاء مزرعة رياح جديدة على ساحل الزعفرانة بقدرة 407 ميجاوات تكفي لتزويد نحو 750 ألف منزل بالكهرباء.

التفاصيل أول تعليق. ... See MoreSee Less

Enamel is the hardest substance your body makes, and it is also one of the only things your body completely gives up on. Once it wears away, it never comes back.

According to research reported on July 23, 2026, scientists developed a fluoride-free gel designed to help rebuild damaged tooth enamel. It was inspired by the proteins that guide enamel formation in infancy. According to the report, the gel fills microscopic damage and helps reconstruct the structure the body cannot replace naturally.

It is early research, not something at your dentist yet. But the concept is genuinely different from anything currently available, which mostly slows damage rather than reversing it.

For your whole life the rule was that enamel loss is permanent. A gel just challenged that. What else that we call permanent is only waiting on the right idea?

Source: ScienceDaily, July 2026 ... See MoreSee Less

They turned an ordinary parking lot into a massive clean energy power plant.

At JPMorgan Chase’s McCoy Center in Columbus, Ohio, the company installed around 40,000 solar panels across 165,000 square feet of parking space.

The solar canopy produces 14.8 megawatts of electricity, enough to provide roughly 75% of the building’s energy needs while also giving thousands of parked cars some much-needed shade.

Instead of clearing farmland or finding new space for a solar farm, JPMorgan Chase used something cities already have plenty of: asphalt.

The company has also expanded solar power to other Columbus facilities, adding another 13 megawatts of capacity as part of its broader effort to cut greenhouse gas emissions.

Projects like this show how parking lots can do much more than store cars. They can generate electricity, provide shade, and make better use of land that is already developed. ... See MoreSee Less