6. Energy systems and sustainability скачать в хорошем качестве

6. Energy systems and sustainability

The global energy transition is accelerating through major advances in renewable technologies, hydrogen electrolysis, battery circularity, industrial efficiency, and digital grid modernization. From 2024–2026, renewable deployment and investment reached record levels, while regional and global policies—including the European Green Deal and Fit for 55—are reshaping markets toward decarbonization, resilience, and energy security. 1. Global Renewable Energy Landscape (2024–2026) Renewables experienced unprecedented growth: 741 GW of new capacity in 2024 and USD 2.2 trillion invested in clean energy by 2025 (two-thirds of global energy spending). Key technologies: Solar PV: Perovskite–silicon tandem modules (26.9 percent efficiency), bifacial panels (plus 5 to 25 percent yield). Solar remains the fastest-growing sector due to low costs and strong supply chains. Wind: 245 MW floating offshore capacity; up to 90 percent turbine mass recyclability, enabling deep-water deployment and circular design. Hydropower: 200 GW pumped-storage capacity, the world’s main grid-scale storage. Marine and geothermal: Diffuser-augmented turbines (plus 55 percent output) and deep Enhanced Geothermal Systems with large baseload potential. 2. Green Hydrogen and Electrolysis Hydrogen is central to decarbonizing steel, fertilizers, shipping, and heavy industry. Green hydrogen remains costly (USD 3.8 to 11.9 per kg), but annual electrolyser manufacturing capacity has reached 61 GW. Electrolyser technologies: ALK: Most mature and cost-effective; 64 percent of capacity. PEM: Fast response and high purity; limited by iridium and platinum reliance. SOEC: High-temperature, high-efficiency systems using industrial waste heat. AEM: Hybrid approach blending low cost and compact design. 3. EV Battery Lifecycle and Circularity Battery demand may increase fourteen-fold by 2030, driving circular strategies and modular designs. Lifecycle considerations: Production impacts driven by mineral extraction and cathode manufacturing (over 34 percent of total emissions). Second-life uses: Batteries with 70 to 80 percent remaining capacity repurposed for grid storage. Recycling: Pyrometallurgy: High-energy smelting. Hydrometallurgy: Chemical leaching with higher recovery and roughly 50 percent less GHG. Direct recycling: Cathode-level regeneration. 4. Industrial Energy Efficiency and Decarbonization Efficiency is a major competitiveness pillar, with global progress expected to reach 1.8 percent in 2025. Key pathways: ISO 50001 strategic energy management. Digital twins and AI for predictive maintenance and optimization. Sectoral transitions: electric arc furnaces in steel, sustainable aviation fuels, and electrification for high-temperature processes. 5. Smart Grids and Energy Traceability Grids are evolving into real-time, data-centric systems: IEC Common Information Model (CIM) ensures interoperability across operators. Energy traceability enabled by Digital Product Passports and Battery Passports (mandatory 2027). Federated data spaces such as Gaia-X and ENERSHARE enable secure, sovereign data exchange. 6. Policy Frameworks and Market Incentives The EU aims for 42.5 to 45 percent renewable energy by 2030. Key instruments: Feed-in tariffs, feed-in premiums, and auctions. EU Emissions Trading System for price-based decarbonization. Contracts for Difference to stabilize low-carbon investments. Persistent barriers: fossil-fuel subsidies reached EUR 136 billion in 2023. Strategic Requirements for Net-Zero To reach 2030 and 2050 climate goals, four pillars must align: Large-scale deployment of renewables, storage, and green hydrogen. Stable and harmonized regulatory environments. Phase-out of harmful fossil-fuel subsidies. Smart grid expansion and interoperable data architectures supporting decentralized flexibility.