AG_0113

Can you please answer my questions? We are trying to find out, how the program calculates the values by using battery storage system. We think with using BASS you save only on self-stored energy and direct consumption from PV. Also all the time energy from the grid, used for charging battery is 0. Thank you again. AG

Hi, I have severall questions in connection with your calculations for PV systems + battery storage systems for own consumption + sell to the grid: How IRR of Capital Resources is calculated (please specify formula which PVSol is using)? How Electricity Production Costs are calculated (please specify formula which PVSol is using)? Battery Charge (Grid) (in Simulation Results, Battery System section) – Can you set up PVSol in such a way that it charges battery over the specific time (eg. in the night)? If yes -> how? If not -> what this parameter shows? Service Life (Simulation Results, Battery System section) – what does it mean? Minimum System Operating Period (in Financial Analysis, Overview section) -> please explain what does it mean? Questions regarding Remuneration and Savings section in Financial Analysis, Overview chapter: Total Payment from Utility in First Year – please explain what does it mean and how is calculated First year savings – please explain what does it mean and how is calculated Own Use Remuneration – please explain what does it mean and how is calculated Questions regarding Cash Flow section: Feed-in / Export Tariff– please explain what does it mean and how is calculated. Why this figure is different than “Total Payment from Utility in First Year” figure showed in Remuneration and Savings section in Financial Analysis, Overview chapter? Electricity savings – please explain what does it mean and how is calculated. Why this figure is different than “First year savings” figure showed in Remuneration and Savings section in Financial Analysis, Overview chapter? Please explain how you calculate savings and renumeration (in Remuneration and Savings section in Financial Analysis, Overview chapter and Cash Flow section. Do I understand correct that: savings should be electricity you produce and consume (directly or through charging / discharging battery system) x price for electricity form the grid (variable part) renumeration should be electricity you produce and sell (feed-in) to the grid x price of feed-in electricity? It looks like PVSol is calculating Feed-in / Export tariff in Cash Flow section (or Total Payment from Utility in First Year in Remuneration and Savings section in Financial Analysis, Overview chapter) as sum of Feed-in / Export Tariff and Own Use Remuneration. It would be really helpfull, if you can answer me my questions regarding your calculation strategy. Thank you in advance. AG