EV charging
- · Charger size
- · Charge time
- · Daily energy
- · Site power
- · Cost to charge
Precifarm Agent
Your AI electrical & energy engineer.
Tell it what you’re building. It sizes, designs and checks the system with you.
Desktop app coming soon. Request access
Precifarm Agent
Project · Karen Residence — EV Charging
User
Design an EV charging system for a
3-bedroom house in Nairobi.
The customer drives about
80 km per day and has unreliable power.
Agent
I’ve broken this into 7 tasks.
- Daily EV energy
- Charge window
- Size home charger
- Home peak load
- Check supply capacity
- Size battery backup
- Draw system layout
Current analysis
- Daily EV energy
- 14.4 kWh
- Recommended charger
- 7 kW
- Charge time
- ~2.1 hrs
- Battery backup
- 10 kWh
- Status
- Checking supply
EV energy and charge-time calcs · inputs you can check
The difference
Don’t just ask AI. Give it a job.
Most AI answers questions. Precifarm Agent works through the design step by step.
- 01
Understand
- 02
Plan
- 03
Research
- 04
Calculate
- 05
Design
- 06
Check
- 07
Iterate
- 08
Deliver
How it works
From a problem to a clear design.
01
Understand
Read the brief — site, vehicle, energy need and limits.
02
Plan
Break the job into steps and note what’s missing.
03
Research
Check datasheets, standards and rules when needed.
04
Calculate
Run real engineering calculators — not guesswork from the AI.
05
Design
Pick the system layout and the right equipment.
06
Verify
Check sizing, cables, protection and what still needs a site visit.
07
Iterate
Change one input — related numbers update with it.
08
Deliver
Get calcs, diagrams, parts lists, reports and install notes.
What it covers
Built for real energy work.
Solar
- · Panel size
- · Expected yield
- · Inverter size
- · Match to your load
Batteries
- · Backup size
- · How long it lasts
- · Critical loads
- · Charge strategy
Electrical
- · Peak load
- · Cable size
- · Voltage drop
- · Protection
- · Earthing
Costs
- · Upfront cost
- · Running cost
- · Diesel vs EV
- · Payback
Sites & fleets
- · Home systems
- · Depots
- · Boda Hubs
- · Highway charging
How the maths works
AI plans. Tools calculate.
The Agent chooses what to work out. Dedicated tools run the numbers.
- Your brief
- AI Agent
- Engineering tool
- Clear calculation
- Check
- Result
EV energy
calculateEvEnergy()
Charging
calculateChargingTime()
Load
calculatePeakLoad()
Solar
sizePvSystem()
Battery
sizeBattery()
Inverter
sizeInverter()
Cables
calculateVoltageDrop()
Protection
sizeProtection()
Costs
calculateEnergyCost()
Example
Give it a real problem.
Prompt
“Design an EV charging system for a home where the customer drives 100 km every day.”
Step 1
Vehicle use
18 kWh / 100 km
Step 2
Daily driving
100 km
Step 3
Daily energy
18 kWh/day
Step 4
Time to charge
10 hours available
Step 5
Power needed
1.8 kW average
Recommendation
7 kW home charger
Estimated charging time · ~2.6 hours
It keeps going.
- Home load
- Main supply
- Peak demand
- Cable size
- Protection
- Charge schedule
- Solar option
- Battery backup
Trust & safety
Faster work. You stay responsible.
Precifarm Agent speeds up design. It does not replace a qualified professional.
- Calculated
- Estimated
- Assumed
- Measured
- Verified
- Needs site check
For safety-critical installs, it flags what still needs a physical check or professional sign-off.
FAQ
Common questions.
What is Precifarm Agent?
An AI that helps you design EV charging, solar, batteries and electrical systems. It plans the work, runs real calculators, and gives you clear results — not a chat bot for customer service.
Does the AI do the maths itself?
No. The Agent decides what to calculate. Separate tools do the maths. You can see what was calculated, estimated, assumed, or still needs a site check.
Is Precifarm Agent live today?
Early access is open. The desktop app is coming soon — request access at precifarm.com/download.
Who is it for?
Engineers, technicians, installers and energy businesses working on EV charging, solar and storage — including Precifarm Pulse, Pod, Spark, Depot, Boda Hub and Corridor projects.
Can it replace a site survey?
No. Photos and documents help early design. Safety-critical work still needs a real visit and a qualified professional.
Start with the problem.
Tell Precifarm Agent what you’re building. Add the files you have. Let it work through the design. EV charging. Solar. Batteries. Electrical systems. One Agent.