Solar energy at the POI (before storage)

What this step does

The row opens the storage block with the system's energy injected into the grid before the battery acts, equal to the Active Energy injected into grid row.

The math

1. The starting total

$$E_{after} = \frac{1}{P_{DC}} \sum_i p_i\,\Delta t \tag{1}$$

where

Symbol	Meaning	Unit
$E_{after}$	the running total after this row	kWh/kWp
$P_{DC}$	the system DC nameplate	kWp
$p_i$	the system's grid injection before the battery at timestep $i$	kW
$\Delta t$	the length of one timestep	h

Reading the number

A total, positive: the system's specific yield, about 1,200 to 2,200 kWh/kWp a year for a utility plant and 900 to 1,500 kWh/kWp for a rooftop system, set by the site's sunlight and the losses above it.

API

storage.solar

Symbols follow the symbol registry.