Residents, communities and businesses have so far installed a total of 4 gigawatts of solar arrays, putting the state on track to exceed its goal of adding 6 gigawatts of distributed solar by 2025, according to the office of New York Governor Kathy Hochul (D). 3-million-square-foot convention center comes as distributed solar is proliferating across New York state. There can be problems with flickering lights - or even a whole-system shut-down, through overload, when a large load is switched on or off.An older photo shows the 909-kilowatt solar installation when it was still under construction. And using the Hub-2 Assistant as an alternative method leads to a less-than-perfect installation. With ESS it is not possible to prevent feed-in where other brands are installed. Using other brands of grid-tie inverters in a No-feed-in system is not recommended. There are no settings or special design considerations to be considered whether connected on the input and/or output of the inverter/charger.įeed-in of PV power via an MPPT Solar Charger can be enabled or disabled in the Energy Storage Systems menu on the CCGX.įor grid-tie inverters, the only option is to use a Fronius grid-tie inverter and use the Fronius Zero Feed-in function. Note that when disabled, the PV power will still be available to power AC loads.įeed-in of PV connected to grid-tie inverters occurs automatically. Every kWh fed-back to the grid is erroneously counted as energy used, and will be charged for.įeed-in of PV power via an MPPT Solar Charger can be enabled or disabled in the Energy Storage Systems menu on the CCGX. It is, however, an ecologically-sound power-contributionįeed-in is absolutely not tolerated - even for a few seconds: there are certain prepaid meters in South-Africa that will disconnect from the grid when they detect Feed-in.įeeding-in results in inflated bills because the electricity meter can only count in one direction - up. This will lead to a much more stable system.Įnergy can be sold back to the grid- or to reduce the electricity bill by running in reverse.įeed-in is allowed, but not rewarded: All energy being fed back is lost in the sense that the utility provider will not pay for you it. In the case of 'no Feed-in' consider using an MPPT Solar Charger - or otherwise a Fronius PV Inverter, and then use the Zero Feed-in function. After (very efficient) conversion to AC, the PV energy is used directly by the air-conditioning unit. When most of the energy consumption takes place during the day - say in an office with air-conditioning - a grid-tie inverter will be more efficient. This will be even more noticeable when the energy consumption takes place mainly in the mornings and the evenings. The reason for this is that an MPPT Solar Charger is up to 99% efficient …whereas the PV energy coming from a grid-tie inverter is first converted from DC to AC, and then back from AC to DC, causing losses up to 20 or 30%.
Generally speaking the MPPT Solar Charger will be more effective than a grid-tie inverter in a small system. MPPT Solar Charger and/or Grid-tie inverterĮSS can work with either an MPPT Solar Charger or a grid-tie inverter, and a mix of both.
Q14: Why does my split and 3 phase ESS VRM data not match my billing?Ģ.1.1. Q13: Can I use ESS in a vehicle or a boat? Q11: My battery is first discharging, and then charged every night? Q10:Why does the system refuse to discharge my battery? Q9: Why are my loads powered by the grid instead of battery or solar? Q8: My system switches off in overload - why is this? Q7: How do the charge states work in ESS? Q6: Optimize mode, no feed-in: The AC Input current fluctuates wildly - sometimes even going negative. Q5: How can I suppress low battery warnings? Q4: Why is the VE.Bus state in pass-through? Q3: Even when the battery is full, the system is still connected to AC-in Q2: I've enabled optimize mode, but do not see grid-power being used to charge the battery Q1: Is power from MPPT used to power the loads when feedback is disabled? Step 8 - Connect all communication cables Step 7 - Configure the inverter/charger(s)
Step 6 - Set up parallel and/or 3 phase inverter/chargers
#Solar system designer update
Step 5 - Update firmware of all equipment Step 1 - Understand how a Victron Energy ESS system works Multiphase regulation - further information Settings -> System setup -> AC Input types
Minimum Discharge SoC (unless grid fails) Grid-tie inverter in parallel or on AC out? MPPT Solar Charger and/or Grid-tie inverter Let's look at the following example-installations:
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