### Loss Mode

With losses production diminishing factors can be considered. The losses are multiplicative linked.

If cable- and transformer losses reduce the production by 2% and grid losses by further 3%, the Production Units have a efficiency of 95.06% = 100% x ((1 - 2%) x (1 - 3%)).

### Efficiency Mode

The efficiency sets the efficiency of the Production Units in percent.

When a facility has a guaranteed availability of 97% the Production Unit has a efficiency of 97% = 100% x 97%

### Degradation Mode

Degradation is an "age discount", which defines the percentage the Production Unit decreases with increasing lifetime. Degradation is a dynamic amendment over time series. It's set in percentage per year, but the decrease occurs every month.

A facility with a yearly Degradation of 1.5% and a Production of 100 MWh/a respective 8.33 MWh in the first month has the following Production and Efficiency:

| 01.2016 | 02.2016 | 03.2016 | 04.2016 | 05.2016 | 06.2016 | ... | 01.2020 |
---|

Production in MWh per Month | 8.33 | 8.32 | 8.31 | 8.30 | 8.29 | 8.28 | ... | 7.84 |

Efficiency | 100% | 99.88 | 99.75 | 99.63 | 99.50 | 99.38 | | 94.17% |

The particular Efficiency is calculated as follows:

Efficiency(t) = Efficiency x (1 - monthly Degradation)^{t}Efficiency(06.2016) = 100% x (1 - (1.5%/12))^{5} = 99.38%

The displayed Efficiency for each Production Units and for the total park shows the average Efficiency over the whole Project Lifetime.

### Loss Interaction

All loss modes are multiplicative linked. The Efficiency of a facility with an availability of 97%, cable- and transformer losses of 2% and a Degradation of 1.5% is calculated as follows:

Efficiency(t) = 100% x (1 - Losses_{i}) x Efficiency x (1 - Degradation)^{t }

The Efficiency after 15 months (Start = 0) is 93.64%:

Efficiency(15) = 100% x (1 - 2%) x 97% x (1 - 1.5% / 12)^{15} = 93.29%