The government faces a pivotal choice: invest wisely in tomorrow's technologies or lock in yesterday's solutions at great public expense. As Greece accelerates its push toward subsidizing energy storage systems, a fundamental question has yet to be addressed: Has there been any independent, science-based study that forecasts where the cost of storing energy-measured as the Levelized Cost of Storage (LCOS)-will stand five years from now? This isn't a technicality. Without robust projections based on credible analysis, government subsidies risk becoming a new burden on taxpayers-repeating the same costly errors made during earlier renewable energy rollouts. In past decades, generous subsidies for solar and wind were introduced without a long-term financial plan. Today, Greek consumers are still paying the price. While the market rate for electricity is around €50 per megawatt-hour, subsidized energy through legacy mechanisms costs over...