HOMER Powering Health Tool

What is this tool for?

The HOMER Powering Health Tool is a free online model to create initial designs of electric power systems for health care facilities that have no other power supply or have grid electricity available for a predictable period of hours each day. The tool is intended for project managers, engineers and financiers in the energy industry to simplify the design process for such systems. The tool models optimal combinations of power supply options to meet electrical loads of a health facility at least cost based on the given inputs. It compares combinations of grid electricity (if available), batteries (lithium-ion or lead-acid), solar photovoltaics (PV), and generator sets fueled by diesel, gasoline or propane. The model runs entirely online and can be used an unlimited number of times with no need to sign in or download software.

How to use the tool?
1) Location
2) Power Assumptions
Electric Grid (if available)
$/kW·h
On-site generation
$/liter
$/kW
$/kW·h
$/kW
$/kW
3) Financial Assumptions
%/year
4) Electric Load Inputs
EquipmentQuantityNameplate Power
(W)		Average Power
(W)		Always on?Daytime
Hours on
7:00-
17:59		Evening
Hours on
18:00-
21:59		Night
Hours on
22:00-
6:59		Total Energy
(kW·h/day)
EPI: Immunization0.0
Vaccine fridge (per 75l)30
YesNo
0.0
Outpatient Treatment0.0
Exam lights (LED)10
YesNo
0.0
Sterilisation equipment500
YesNo
0.0
Obstetric Delivery0.0
Exam lights (LED)10
YesNo
0.0
Suction50
YesNo
0.0
Water heater / Kettle1,000
YesNo
0.0
Maternity Ward0.0
Lights / LED10
YesNo
0.0
Ceiling fan30
YesNo
0.0
Sterilisation autoclave (per 20l)2,000
YesNo
0.0
Portable Ultrasound22
YesNo
0.0
MCH0.0
TV / DVD75
YesNo
0.0
Neonatal Care0.0
Infant Warmer300
YesNo
0.0
Newborn Incubator300
YesNo
0.0
Phototherapy Unit, infant180
YesNo
0.0
General Wards0.0
Lights / LED10
YesNo
0.0
Ceiling fan30
YesNo
0.0
Laboratory0.0
Lights / LED10
YesNo
0.0
Sterilisation equipment500
YesNo
0.0
Refrigerator (reagents, per 150l)42
YesNo
0.0
Centrifuge (large)100
YesNo
0.0
Centrifuge (mini)15
YesNo
0.0
Microscopes20
YesNo
0.0
Laboratory Incubator (cultures)100
YesNo
0.0
Water bath300
YesNo
0.0
CD4 Machine (HIV)100
YesNo
0.0
Refrigerator (blood, per 150l)42
YesNo
0.0
Hematology analyzer60
YesNo
0.0
Blood chemical75
YesNo
0.0
GeneXpert (COVID / TB test) 2 module150
YesNo
0.0
PCR Machine (thermal cycler)200
YesNo
0.0
Administration & Admissions0.0
Computer desktop70
YesNo
0.0
Computer laptop45
YesNo
0.0
Printer10
YesNo
0.0
Desk lights (LED)10
YesNo
0.0
Lights / LED10
YesNo
0.0
Ceiling fan30
YesNo
0.0
Refrigerator (domestic, per 150l)42
YesNo
0.0
COVID Isolation Ward0.0
Lights LED (add to General Ward)10
YesNo
0.0
Exhaust fan (per COVID isolation cubicle)40
YesNo
0.0
Exhaust fan (staff change area)40
YesNo
0.0
COVID Basic Care Ward0.0
Lights LED (add to General Ward)10
YesNo
0.0
Exhaust fan (per COVID isolation cubicle)40
YesNo
0.0
Oxygen Concentrator (50% of beds)350
YesNo
0.0
BiPAP respirator (50% of beds)80
YesNo
0.0
CPAP respirator (50% of beds)80
YesNo
0.0
Pulse Oximeter *(rechargeable)5
YesNo
0.0
Infusion pump50
YesNo
0.0
EKG/ EGC (*potable rechargeable)30
YesNo
0.0
Exhaust fan (staff change area)40
YesNo
0.0
Operating Theatre0.0
Lights / LED10
YesNo
0.0
Air Conditioner (Inv.)450
YesNo
0.0
Surgery spot lights (LED)150
YesNo
0.0
Ventilator150
YesNo
0.0
Anaesthetic machine100
YesNo
0.0
Suction machine180
YesNo
0.0
Cautery Diathermy (Cauterizer)100
YesNo
0.0
Patient monitor multi-par (PMS)100
YesNo
0.0
Pulse Oximeter *(rechargeable)5
YesNo
0.0
Sterilisation autoclave (per 20l)2,000
YesNo
0.0
Radiology0.0
X-Ray machine600
YesNo
0.0
Portable X-ray *(li-ion recharge)150
YesNo
0.0
Ultrasound200
YesNo
0.0
Intensive Care Unit0.0
Lights LED (high level)10
YesNo
0.0
Air Conditioner (Inv.)450
YesNo
0.0
Exhaust fan (per COVID isolation cubicle)40
YesNo
0.0
Ventilator (ICU)150
YesNo
0.0
Patient monitor multi-par (PMS)100
YesNo
0.0
Oxygen Concentrator (ICU)350
YesNo
0.0
Pulse Oximeter *(rechargeable)5
YesNo
0.0
Infusion pump50
YesNo
0.0
Suction machine180
YesNo
0.0
Defibrillator *(rechargeable)10
YesNo
0.0
Portable X-ray *(li-ion recharge)150
YesNo
0.0
Mortuary0.0
Lights10
YesNo
0.0
Ceiling fans30
YesNo
0.0
Air Conditioner (Inv.)450
YesNo
0.0
Refrigeration (per 3 trays)650
YesNo
0.0
Staff0.0
House for Doctor214
YesNo
0.0
House for Senior MO157
YesNo
0.0
House for Senior nurse109
YesNo
0.0
House for Enrolled nurse109
YesNo
0.0
Water Supply0.0
Pump 1m3/day, 20m head30
YesNo
0.0
Pump 1m3/day, 40m head60
YesNo
0.0
Pump 1m3/day, 80m head120
YesNo
0.0
Water Heating0.0
Geyser 1m3/day, 45oC incl. losses6,344
YesNo
0.0
Custom Equipment0.0
Total0.0
5) Run HOMER®
About the tool

The HOMER Powering Health Tool uses the proprietary optimization algorithm of HOMER (Hybrid Optimization Model for Multiple Energy Resources), originally developed at the United States National Renewable Energy Laboratory (NREL), and enhanced and distributed by HOMER Energy by UL, a subsidiary of UL. The model has been made available online in this tool with funding and technical support from USAID, the Energy Sector Management Assistance Program (ESMAP) through the World Bank including in context of the Energy Storage Partnership and We Care Solaras well as contributions from numerous health and energy experts. Feedback on the tool is welcome and can be addressed to support@homerenergy.com.

Disclaimer. The services of the website are provided strictly on an “as is” basis. There are no warranties, express or implied, including, but not limited to, any implied warranties of merchantability or fitness for a particular purpose, originality, results to be derived from the services or non-infringement of third party rights with respect to this agreement or the services. HOMER Energy by UL makes no representation, warranty, or guaranty as to the reliability, quality, suitability, availability, accuracy or completeness of the services provided by this tool. By using this tool, users expressly acknowledge that the services are still in the development process, have not been fully tested, and may not operate error-free. By agreeing to participate in the testing of the services, the user accepts all risks associated with the services and the operation thereof without limitation. Service providers should ensure that systems follow codes of practice for electrical safety and comply with all applicable national and local laws. Specialized codes for electrical installations in medical locations (e.g. IEC 60364-7-710) may also be relevant. This tool is not designed to meet a specific code.

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