: Hospital and Clinic Project Experience :
Gorkha Hospital
Gorkha hospital is located in the Gorkha region of Nepal, the hospital is close to the main city and connected to the metro-grid but does not have reliable power and relies heavily on Diesel Generator. The project was scoped and designed by the Alternative Energy Promotion Centre (AEPC) to implement an AC coupled PV system which could power critical loads during day time directly from PV with some storage to cover night-time loads and delivery some autonomy.
The project was executed as a JV between Sunshine Energy and Peak Power and we delivered the system based around Victron Energy Quattro platform and SMA AC coupled PV inverters. Once the system installation was completed, there was an extensive re-wiring process to integrate the inputs and outputs from the renewable-based power system into the existing hospital electrical network. This system had some technical design gaps which we were able to address during the project and work through with the Hospital engineering staff. The result was a better integration of the grid and generator inputs with a full system bypass, as well as extensive distribution network rewiring and rebalancing.
Gorkha Hospital on the Victron Energy Blog.
- 48 KVA - 3 phase inverter stack Victron Energy Quattro inverters.
- 50 kW AC coupled PV SMA STP core 1 PV inverter.
- 7500 AH of deep cycle battery storage.
- grid / diesel generator hybrid.
Raskot Hospital
Raskot Community Hospital, a not for-profit based in the remote Kalikot region of Nepal. It has been around for more than ten years and is going through a sustainability uplift program which involves implementation of a hybrid solar based power system which can provide clean and reliable energy to reduce reliance on diesel generators, improve power quality and reliability.
Peak Power/Motherland Energy Group delivered this project to implement the power system at the Hospital, this is based around the Victron Quattro platform with SMA AC coupled PV, the integration and control system are based on Victron’s GX platform and Peak Power fabricated switch boards.
This system integrates with the existing diesel generator at the site, although this was not included in the scope of the design, we chose to integrate the diesel generator to improve overall system reliability and performance.
- 30 KVA - 3 phase inverter stack Victron Energy Quattro inverters
- 30kW AC coupled PV SMA STP 25kW PV inverter
- 6000 AH of deep cycle battery storage.
Dhulikhel Hospital Outreach Centre - Bahunipati
The Bahunipati clinic services the local region where grid is unreliable but not as bad as some of the other clinics, it is almost impossible for a clinic to run any medical or IT equipment in these locations so reliable and clean power is a must.
For this site which was one our first with Dhulikhel Hospital the budget determined SMA AC coupled PV with battery inverter, battery bank consisting of 48v 200AH 12v cells, we included our custom switchboard which has bypass, surge protection and low impedance earthing.
We also re-wired existing distribution wiring to enable protected loads circuits and grid fed circuits, with all essential lighting and equipment be moved to protected loads. Although these solar PV systems made a tremendous difference to the clinic being able to service the public the lack of budget really limits the impact we could have on the clinic.
- 1 phase sma sunny island system
- sma sunny boy ac coupled PV
- hybrid grid
Dhulikhel Hospital Outreach Centre - Phalebas
The Phalebas clinic services the local region where grid is horrible, it is almost impossible for a clinic to run any medical or IT equipment in these locations so reliable and clean power is a must.
For this site the budget determined SMA AC coupled PV with battery inverter, battery bank consisting of 48v 200AH 12v cells, we included our custom switchboard which has bypass and surge protection and low impedance earthing.
We also re-wired existing distribution wiring to enable protected loads circuits and grid fed circuits, with all essential lighting and equipment be moved to protected loads. If the battery SOC is low, the system can be connected to grid, however these remote sites always have high impedance connections so in reality you might be lucky to get 180v and a couple of amps out of it. This is why designing system to be sustainable with PV and Battery is essential, unfortunately budget dictates the design.
- 1 phase sma sunny island system
- sma sunny boy ac coupled PV
- hybrid grid
Dhulikhel Hospital Outreach Centre - Manekharka
The Manekharka clinic services the local region where grid is almost useless, it is almost impossible for a clinic to run any medical or IT equipment in these locations so reliable and clean power is a must.
For this site the budget determined SMA AC coupled PV with battery inverter, battery bank consisting of 48v 2v cells, the site had a much cleaner distribution system than others similar clinics so we installed simple bypass option with a small switchboard, quality breakers and SPD’s.
We also re-wired existing distribution wiring to enable protected loads circuits and grid fed circuits, with all essential lighting and equipment be moved to protected loads. This system is a lot more reliable and robust due to the battery bank design and capacity. We also completed a PV extension at this site to increase the solar and PV inverter capacity at the request of the clinic. This system was reliable and works very well for the clinic.