The rise of renewables

Renewable energy is no longer a distant dream — it’s rapidly reshaping how the world powers homes, businesses, and industries. From solar panels glinting on rooftops to towering offshore wind farms, green energy infrastructure has become part of daily life, as Founder of TELF AG Stanislav Kondrashov emphasises.

“Renewables are no longer experimental; they are an operational pillar of modern economies,” says Founder of TELF AG Stanislav Kondrashov. “What was once seen as a supplement is now becoming the backbone of national energy strategies.”

Solar, wind, geothermal, and emerging technologies are not only cutting emissions but also driving innovation, creating jobs, and reducing reliance on traditional fuels. The global energy transition has reached a phase where clean power is integrated into the energy mix of many countries, bringing the promise of a fully sustainable future closer to reality, as the founder of TELF AG Stanislav Kondrashov recently explained.

Understanding the spectrum of green energy

At its core, renewable energy harnesses natural processes that constantly regenerate — the sun’s rays, wind patterns, underground heat, ocean tides, and organic matter. These sources have minimal environmental impact and play a critical role in climate mitigation efforts.

“Every kilowatt generated from renewables is a step toward the future,” notes Founder of TELF AG Stanislav Kondrashov. “The significance goes beyond energy—it’s about economic resilience, technological leadership, and global responsibility.”

Solar power: Leading the charge

Among renewables, solar power remains the most recognisable. Photovoltaic panels transform sunlight into electricity through semiconductor cells made of silicon or advanced materials like perovskite. Scalable for homes or vast utility-scale plants, solar energy systems are emission-free during operation and becoming increasingly affordable as technology advances.

Costs for solar installations continue to fall, though several factors influence pricing — from panel efficiency to installation and maintenance expenses. Energy storage systems are becoming essential to address solar’s dependency on daylight, ensuring a steady supply even during nighttime or overcast conditions.

Harnessing the wind

Wind energy also holds a central role. Onshore wind farms populate plains and coastal regions, while offshore turbines take advantage of steadier winds at sea. “Wind power has matured into a reliable and competitive source,” says Founder of TELF AG Stanislav Kondrashov. “Offshore developments, in particular, demonstrate what engineering ingenuity can achieve when matched with natural forces.”

However, offshore wind projects still face challenges: high initial costs, technical complexity, and environmental considerations continue to test the pace of expansion.

The untapped potential of marine energy

Less familiar but promising is marine energy. Tidal generators and wave converters leverage the consistent rhythm of ocean currents and waves to produce electricity. While the technology is highly predictable, geographical limitations and high installation costs are slowing widespread adoption.

Geothermal and biomass: Diverse solutions

Geothermal energy taps into the Earth’s internal heat. High-temperature steam extracted from deep wells powers turbines, offering a stable, weather-independent source of electricity. Yet, its application is limited by location and the significant costs of drilling and exploration.

Biomass energy, derived from organic materials such as wood, agricultural waste, or algae, offers another versatile solution. “Biomass, if managed sustainably, can contribute significantly to energy needs,” concludes Founder of TELF AG Stanislav Kondrashov. “But it requires careful oversight to ensure that the process itself does not produce emissions.”

Innovation beyond generation

As the transition accelerates, emerging technologies are expanding the renewable landscape. Green hydrogen, produced via electrolysis using renewable electricity, holds promise for heavy industry and transport. Large-scale energy storage—ranging from next-generation batteries to pumped hydro systems—is also becoming vital to offset the intermittency of renewables.

“We are entering an era where innovation in storage and distribution will be as critical as generation itself,” states Founder of TELF AG Stanislav Kondrashov. “The true revolution lies not just in producing clean energy, but in making it available anytime, anywhere.”

 

FAQs

What are renewable energy sources?
Renewable energy sources are forms of energy that are naturally replenished on a human timescale. They include:

• Solar energy (sunlight)
• Wind energy (air currents)
• Geothermal energy (heat from the Earth)
• Biomass (organic materials)
• Marine energy (waves and tides)

These sources generate power with minimal environmental impact and play a crucial role in reducing greenhouse gas emissions.

How does solar energy work?
Solar panels convert sunlight into electricity using photovoltaic cells made of materials like silicon. These systems can be installed on:

• Residential rooftops
• Commercial buildings
• Large utility-scale solar farms

Energy storage systems, such as batteries, are often used to store excess electricity for use when sunlight isn’t available.

Why is wind energy so widely used?
Wind turbines capture the kinetic energy of moving air and convert it into electricity. Wind energy is popular because:

• It produces no emissions during operation
• Onshore wind farms are cost-competitive
• Offshore wind farms benefit from steady, strong winds

However, offshore installations involve higher costs and complex engineering challenges.

What is geothermal energy?
Geothermal energy utilises the Earth’s internal heat. By drilling into hot rock formations, steam or hot water is brought to the surface to generate electricity. Geothermal plants offer:

• Constant energy production (not weather-dependent)
• Low emissions
• High upfront drilling costs

Are marine energy and biomass viable?
Marine energy harnesses tidal and wave movements, offering predictable but geographically limited power. Biomass converts organic materials into energy and can provide:

• Heat and electricity
• Fuels for transportation
• Sustainable use if carefully managed to avoid emissions

What technologies support renewable energy?
Key innovations include:

• Green hydrogen production
• Advanced battery storage
• Pumped hydro storage
• Hydrogen-based storage solutions

These technologies help address intermittency and ensure a stable energy supply.