Space-based solar power (SBSP) involves collecting solar energy in space using solar satellites and then transmitting it down to Earth through microwave or laser beams. Because space has uninterrupted sun exposure—no day-night cycle or weather interference—these systems could offer continuous, renewable electricity. The market is growing due to rising demand for clean, reliable energy, governmental and defence interest, improvements in satellite & wireless power transmission technology, and falling launch costs. Key hurdles include high infrastructure costs, ensuring durability in space, and regulatory, safety, and transmission efficiency challenges.