PV power plant Karlovo

The Karlovo PV plant has a capacity of 3,496 kWp and is connected to the local 20 kV medium-voltage grid belonging to Bulgarian electricity supplier EVN Bulgaria. Karlovo is a ground mounted PV system with a fixed tilt. We have obtained all the required permits.

Installed modules

The photovoltaic modules used in the plant are supplied by the Austrian company KIOTO Photovoltaics GmbH in St. Veit an der Glan. Manufactured to the highest quality standards, they have a nominal power of 205 Wp (watts peak) per module. The KIOTO modules are certified to IEC 61215, IEC 61730, MCS and IP 65 by TÜV Rheinland (German product testing agency) and thus meet the world’s most stringent test standards for photovoltaic products.

Power plant operation

Operation specialists ENcome Energy Performance are responsible for organising and running the power plant. In order to keep a constant check on the photovoltaic power plant, a 24/7 monitoring system will be installed which sends all the plant’s performance parameters online to the control station in Klagenfurt. This enables the operator to detect even the slightest deviation and take the necessary corrective action immediately.


Country: Bulgaria
Region: Central-Bulgaria
Nearest town: Karlovo
Previously unused land
Connection to the local network of „EVN Bulgaria“
GPS coordinates for Karlovo: 42°38’23″N 24°42’02″E


17.056 polycrystalline modules KIOTO á 205 Wp
SMA central inverter, 2 * SMC 500-11, 4 * SMC 630-11
Mounting system: HILTI
24/7 monitoring system AlarmDirekt
6 transformers: 2 * SMC 500-11 und 4 * SMC 630-11


Total nominal power

3.496,48 kWp

Electricity yield

1.350 kWh/kWp

Land contract

The property is in ownership by the SPV. Area: 81.500 m²

EPC contractor

KPV Solar GmbH



Product warranty: 12 years on modules, 5 years on inverters and mountings. Efficiency warranty for KIOTO modules: 97% in year 1, then -0.7%/year.


December 2011

Total nominal power in kWp

Electricity yield in kWh/kWp


Current Performance


Today production


Total production