The question likely assumes: over 9 sols, no solar, so need 230.4 kWh. Generation provided: 350 × 9 = 3150 kWh → surplus. But since additional implies deficit, and there is none, answer is 0? But that seems off.

Sun, 03 May 2026 16:27:13 +0000

Understanding Solar Energy Deficits: A Common Question Explained In off-grid renewable energy planning, a frequent question arises: “If a system generates 350 watts over 9 sols but no sunlight is available for that entire period, requiring 230.4 kWh, why isn’t there a deficit—even though the total generation exceeds demand?” At first glance, the surplus of 3140.4 kWh (350W × 9 days = 3150 kWh) suggests plenty of energy. Yet, under certain assumptions, the answer may appear paradoxical—sometimes even zero or negative. Let’s unpack the reasoning behind this apparent contradiction. --- ### The Basic Energy Calculation