Grid-tied solar dominates the market for good reason: With 2025 system costs ranging from $2. 00 per watt installed and federal tax credits of 30% through 2032, grid-tied systems offer the fastest payback periods (6-10 years) and highest returns on investment without requiring expensive. . That can dramatically lower or eliminate your electric bill over time. Typical packages include panels, inverter, mounting, and labor. flexibility and. . Connecting solar panels to the electrical grid offers an accessible, efficient path to clean energy—without the need for costly battery storage. Increased Energy Efficiency, 2. Environmental Impact Mitigation, 4. Increased energy efficiency arises from the ability to use. . An on-grid solar system, also known as a grid-tied or grid-connected solar system, is a renewable energy setup that connects directly to the public electricity grid.