A practical guide for homeowners who want reliable electricity without wasting money on the wrong equipment
Electricity problems affect almost every part of life at home.
When the power goes off, lights stop working, phones cannot charge, food in the refrigerator may be at risk, internet access disappears, and families are forced to depend on generators, candles, rechargeable lamps, or other temporary solutions.
For many homeowners in Cameroon, solar energy offers a more dependable alternative. However, buying a solar system is not as simple as purchasing a few panels, an inverter, and a battery.
The most expensive solar system is not always the best one. The right system is the one designed around your home, your appliances, your daily habits, and the number of hours you need backup power.
This guide will help you understand what to consider before requesting a quotation or paying for any solar installation.
Start with the problem you want solar to solve
Before choosing equipment, ask yourself one important question:
What do I want this solar system to do for my home?
Different homeowners have different expectations.
One family may only want lights, phone charging, a television, internet, and a refrigerator during power cuts. Another household may want to operate a water pump, freezer, air conditioner, washing machine, or electric cooking equipment.
These homes do not need the same solar system.
A system designed for basic lighting and communication may be relatively small. Once you add refrigeration, pumping, heating, air conditioning, or workshop equipment, the required inverter, battery capacity, solar panels, wiring, and protective equipment can increase significantly.
Begin by deciding whether you need:
- Basic emergency backup during outages
- Reliable power for essential appliances
- Day-and-night solar power for most household needs
- A hybrid system combining solar, batteries, grid power, and a generator
- A system that can grow as your household needs increase
This first decision helps the installer understand what kind of solution should be designed.
Make a list of your essential appliances
Many homeowners make the mistake of saying:
“I want solar for the whole house.”
That sounds simple, but it does not give an installer enough information to size the system correctly.
Instead, write down every appliance you want the solar system to power.
A basic household list may include:
- LED lights
- Television
- Refrigerator or freezer
- Fans
- Wi-Fi router
- Decoder
- Phones and laptops
- Security lights
- Water pump
- Small kitchen appliances
For each item, note how many you have and how many hours you normally use it each day.
For example:
| Appliance | Quantity | Estimated hours used daily |
|---|---|---|
| LED lights | 8 | 6 hours |
| Television | 1 | 5 hours |
| Refrigerator | 1 | 24 hours |
| Fans | 3 | 8 hours |
| Wi-Fi router | 1 | 12 hours |
| Phones | 4 | Charging as needed |
| Water pump | 1 | 1 hour |
This list gives the installer a starting point for calculating your daily energy requirement.
You do not need to understand all the technical calculations. Your responsibility is to provide accurate information about how your home operates.
Separate essential loads from heavy loads
Not every appliance needs to be connected to the solar backup system immediately.
Some appliances consume much more electricity than others. Air conditioners, electric cookers, water heaters, irons, washing machines, kettles, large pumps, and workshop equipment can increase the cost of a system very quickly.
This does not mean solar cannot power them. It means they must be included intentionally in the design.
For a homeowner working with a limited budget, it may be wiser to start with the appliances that protect comfort, communication, security, food, and basic household operations.
These may include:
- Lighting
- Refrigerator
- Television
- Fans
- Internet
- Phone charging
- Security equipment
- A critical water pump
Heavier appliances can sometimes be placed on a separate circuit, used only during strong sunlight, or added when the system is expanded.
A good solar system should reflect your priorities. It should not become unnecessarily expensive because every appliance was included without considering how frequently it is used.
Decide how long you need backup power
Battery capacity depends heavily on how long you expect the system to keep working when solar production or grid electricity is unavailable.
Consider these two homeowners:
The first homeowner wants the system to keep lights, television, fans, Wi-Fi, and a refrigerator working for three hours during an evening outage.
The second homeowner wants the same appliances to operate throughout the night and continue into the next morning.
The second home will need more battery capacity.
Ask yourself:
- How often does electricity go off in your area?
- Do outages normally last minutes, hours, or an entire day?
- Do you need power only in the evening?
- Should the refrigerator operate throughout the night?
- Do you want the system to continue working through several cloudy hours?
- Will the system support your home while you are away?
Battery backup should be based on realistic needs. Choosing too little capacity may leave the family without power before the outage ends. Buying far more battery capacity than necessary can make the project more expensive.
Understand that appliance starting power matters
An appliance may require more power when starting than it uses during normal operation.
This is common with equipment that contains a motor or compressor, including:
- Refrigerators
- Freezers
- Water pumps
- Air conditioners
- Washing machines
- Some power tools
A refrigerator may consume a moderate amount of electricity while running, but the compressor can demand a brief surge when it starts.
The inverter must be capable of handling that surge.
This is one reason homeowners should avoid choosing an inverter only by looking at the normal wattage of their appliances. The installer must consider both continuous power and starting power.
An undersized inverter may trip, shut down, or struggle when several appliances start at the same time.
Look at your roof and installation area
Solar panels need a suitable installation area with access to sunlight.
Before installation, the site should be assessed for:
- Roof size
- Roof strength
- Roof orientation
- Shading from trees or neighbouring buildings
- Panel accessibility
- Drainage and weather exposure
- Safe cable routes
- Location of the inverter and batteries
- Ventilation
- Security
A large roof does not automatically mean every part of it is suitable for solar panels.
Shade can reduce system performance. Poor panel placement may also make maintenance difficult. Batteries and inverters should be installed in safe, ventilated areas protected from excessive heat, water, dust, and unauthorized access.
Where the roof is unsuitable, the installer may consider a ground-mounted structure or another protected installation area.
Plan for future expansion
Your power needs may change.
You may later add:
- Another refrigerator
- A freezer
- More rooms
- A water pump
- Security cameras
- A home office
- Air conditioning
- A rental unit
- A small home business
A solar system designed only around today’s minimum requirement may become difficult or expensive to expand.
Tell the installer about any future plans before the initial design is completed.
The system may be designed with:
- Additional inverter capacity
- Space for more batteries
- Expandable battery technology
- Provision for more panels
- A distribution panel that supports future circuits
- Proper cable sizing
- Monitoring and maintenance access
Planning for expansion does not always mean buying everything immediately. It means avoiding a design that blocks future growth.
Do not choose a solar system based only on the number of panels
Homeowners often hear descriptions such as:
- “Four-panel system”
- “Six-panel system”
- “Ten-panel system”
- “Five-kilowatt inverter”
- “Two batteries”
These descriptions do not tell the whole story.
Two systems with the same number of panels may perform differently because of:
- Panel wattage
- Battery capacity
- Battery technology
- Inverter quality
- Charge-controller capacity
- Wiring quality
- Installation conditions
- System configuration
- Appliance load
- Backup expectations
A quotation should explain what the system is designed to power and for approximately how long under the agreed operating conditions.
The number of panels is only one part of the system.
Understand the main components of a home solar system
A home solar installation may include several connected components.
Solar panels
Solar panels convert sunlight into electrical energy. The required number depends on your daily energy use, available sunlight, battery charging needs, and roof space.
Inverter
The inverter converts electricity from the solar and battery system into the type of electricity used by household appliances.
It must be properly sized for the appliances it will support, including their starting surge.
Batteries
Batteries store energy for use at night, during outages, or when solar production is low.
Battery capacity affects how long your appliances can continue working.
Charge controller
The charge controller manages the electricity moving from the panels to the batteries and helps protect the battery system.
Some modern inverters include this function.
Protection and distribution equipment
A proper installation should also include suitable breakers, isolation, grounding, surge protection, distribution support, safe cable sizing, and clearly organized wiring.
These components may receive less attention during sales discussions, but they are essential for safety and long-term reliability.
Why the cheapest quotation may cost more later
Price is important, but a solar system should not be selected on price alone.
A very cheap quotation may leave out important parts of the installation or use equipment that does not match your household needs.
Possible consequences include:
- Insufficient backup time
- Frequent inverter shutdowns
- Batteries that fail early
- Unsafe wiring
- Poor grounding
- Appliances that cannot start
- Difficult maintenance
- No room for expansion
- Repeated repair costs
A useful quotation should be based on a load assessment, site conditions, backup requirements, equipment quality, installation complexity, and the maintenance needs of the system.
HenHes does not apply one fixed price to every home because each project is different. The quotation depends on the appliances involved, the required backup duration, the property location, installation conditions, system size, and future requirements.
Questions to ask before accepting a quotation
Before approving a solar installation, ask the installer:
- What appliances is this system designed to power?
- How many hours of backup should I expect?
- Can the inverter handle my refrigerator, pump, or other starting loads?
- What battery type and capacity are included?
- How many solar panels are included, and what is their wattage?
- Are grounding, breakers, surge protection, and installation materials included?
- Where will the batteries and inverter be installed?
- Can the system be expanded later?
- What maintenance will the system need?
- What information should I provide if my appliances change?
A serious installer should be able to explain the design in language you understand.
Common mistakes homeowners should avoid
Buying equipment before completing a load assessment
Panels, batteries, and inverters should work together as one system. Buying components separately without a proper design may create compatibility and performance problems.
Underestimating refrigerators, pumps, and air conditioners
Motor-driven appliances can require high starting power. They must be considered carefully during inverter sizing.
Ignoring battery backup expectations
A system that powers your appliances for two hours is different from one designed to operate overnight.
Installing panels in shaded areas
Shade from trees, walls, tanks, or nearby buildings can reduce energy production.
Connecting every appliance to backup power
Heavy loads can drain batteries quickly and make the system more expensive. Essential and non-essential circuits should be planned properly.
Forgetting maintenance
Panels, batteries, connections, breakers, inverters, and protective systems need periodic inspection.
A simple preparation checklist
Before contacting a solar company, prepare the following information:
- Your name
- Phone or WhatsApp number
- Email address, where available
- Your neighbourhood, town, or project location
- A list of the appliances you want to power
- The quantity of each appliance
- Estimated hours of daily use
- How long you want backup power
- How frequently power goes off in your area
- Whether you already have a generator, inverter, batteries, or solar panels
- Photos of the roof or proposed installation area
- Your expected installation timeline
- Your budget, where you are comfortable sharing it
- Any future appliances or expansion plans
This information helps the technical team prepare for the consultation and reduces the risk of receiving a quotation that does not match your home.
Free homeowner resource: Home Solar Planning Checklist
To make solar planning easier, HenHes can offer homeowners a simple downloadable checklist.
The checklist should allow a homeowner to record:
- Appliances
- Quantity
- Appliance wattage, where known
- Daily operating hours
- Essential or non-essential status
- Required backup duration
- Roof and installation details
- Location
- Existing equipment
- Future power needs
Suggested download CTA
Planning solar for your home?
Download the free HenHes Home Solar Planning Checklist and complete it before requesting a quotation. It will help you organize your appliances, backup needs, roof information, and future plans so the technical team can understand your project more accurately.
[Download the Free Checklist]
Replace the final button text with the actual PDF download link once the checklist has been uploaded to the website.
The right solar system begins with the right questions
Solar can provide reliable lighting, refrigeration, communication, security, water pumping, and greater independence from unstable grid electricity.
But the value of the system depends on how well it is designed.
A good home solar project begins with an honest assessment of what your family needs, how long the system should operate, which appliances are essential, and how the home may change in the future.
HenHes designs, installs, commissions, and maintains renewable energy systems for homes, businesses, clinics, schools, institutions, telecom sites, and community projects. The company’s approach includes site assessment, load analysis, system sizing, installation, backup planning, hybrid power integration, commissioning, and preventive maintenance. HenHes also operates across healthcare technology, medical-equipment support, calibration, telecommunications, industrial electrical power, offshore services, and quality assurance.
For an accurate home solar quotation, the HenHes team will need to understand your location, appliances, backup requirements, installation area, project timeline, and future needs.
Request a home solar assessment
Contact HenHes with:
- Your name
- Phone or WhatsApp number
- Location
- Appliances you want to power
- Required backup duration
- Photos of the roof or installation area
- Your preferred installation timeline
HenHes — Haute Energy & Health Systems
Reliable energy and dependable systems for homes, businesses, institutions, and communities.
