| C0 | Total initial investment costs (EUR) |
| CFtotal | Total cash flow (not discounted) (EUR) |
| CO&M,total | Total operation and maintenance costs for the duration of the investment (EUR) |
| Ct | Discounted (net) cash inflow for the duration of investment (EUR) |
| CV | Relative standard deviation (%) |
| DC | Direct current (A) |
| DPP | Discounted payback period (years) |
| E | Annual PV energy output (kWh) |
| E1 | Annual PV energy output in first year (kWh) |
| Et | Annual PV energy output in other years (kWh) |
| Etotal | Total PV energy output for the duration of the investment (kWh) |
| IRR | Internal rate of return (%) |
| NPV | Net present value (EUR) |
| IC | Integrated circuit |
| KÁT | Hungarian system of supporting green energy from renewable energy sources until 31 December 2016 |
| MAVIR | Hungarian Transmission System Operator |
| MEKH | Hungarian Energy and Public Utility Regulatory Authority |
| METÁR | Renewable Energy Support Scheme from 1 January 2017 |
| MX | Maxim Integrated |
| PV | Photovoltaic |
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