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= Solar Power on Planet Surfaces = == Calculating the Accumulator/Panel Ratio == The ratio formula is: <code>R = 0.168 * (MaxPanelOutput kW / AccumulatorCapacity kJ) * CycleDuration s * (Efficiency / 100)</code> Which, if using the vanilla panels and accumulators, can be further simplified into this: <code>R = 0.002016 * CycleDuration s * (Efficiency / 100)</code> Note the measurement units. ===== Example: ===== The planet Efficient has 120% solar efficiency and 9 minutes day/night cycle. If we want to know the ratio of vanilla accumulators per vanilla panels, we have: <code> R = 0.168 * (60 kW / 5000 kJ) * 540 s * (120 / 100) R = 0.002016 * 540 s * 1.2 R = 1.3</code> So when on planet Efficient's surface, we'd have to place roughly 13 accumulators every 10 solar panels. The high efficiency make it so that we need a smaller number of panels to power the base, but the very long day/night cycle requires many more accumulators to store the charge necessary to last the night. == Calculating the Average Panel Output == This is easy to calculate: <code>AveragePanelOutput = MaxPanelOutput * 0.7 * (Efficiency / 100)</code> The 0.7 constant is applied like in the vanilla game, as the equivalent time of a panel operating at average output is always 70% of a day cycle. ===== Example: ===== Let's go back to planet Efficient. Having 120% efficiency, our average output for a vanilla panel would be: <code>AveragePanelOutput = 60 kW * 0.7 * (120 / 100) = 50.4 kW</code> == Comparing Planets == Given the same efficiency or similar day/night cycle, it's easy to tell which planet is better for solar. However, what if both characteristics are very different or very similar? Efficiency at first might seem the most important trait, because with more power, the less items one needs, however if the day/night cycle is long enough, the accumulators might actually make things more expensive. Planet Efficient from the previous examples is actually slightly worse than Nauvis despite the higher efficiency. To generate 4.2 MW, Nauvis requires 100 solar panels and 84 accumulators, while Efficient requires 83.33 panels and 108.33 accumulators. How not to get tricked then? It's easy. Take the day/night cycle length and divide it by the efficiency. The planet with the lower number wins.
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