10
Deterministic engineering tools: EV, solar, battery, inverter, cables, protection, costs, products
Precifarm Agent
Your AI electrical and energy engineer.
Size EV charging, solar, battery backup, cables and protection in minutes. The Agent plans the job, runs real engineering tools for every number and labels each result so you can check it.
- 10 engineering tools
- Every result labelled
- Engineer signs off
Live in early access · Ask and Plan modes · powered by DeepSeek V4 Flash
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
100%
Of numbers come from a tool and carry an evidence label you can audit
Precifarm Agent
Android companion in early access · desktop workspace next
Try it
Give it a real brief.
Pick an example or describe your own site. Open the calculation trace under each reply to see every tool the Agent ran.
Precifarm Agent
Plan mode · no actionsDeepSeek V4 Flash
Tell me what you're building: a home Pulse install, a depot, solar and storage, or a cable and protection check. I'll plan the work and run the engineering tools for every number.
OpenCode + DeepSeek · DeepSeek V4 Flash
Every number comes from an engineering tool and carries an evidence label. Not a substitute for a site survey or a qualified professional. Open full workspace
Ambition
Your car has a companion. Your energy has a brain.
Precifarm Agent is the intelligent layer connecting driver, vehicle, journey, charging, home energy, M-Pesa and the Precifarm network, without becoming a generic chatbot or a map with lipstick.
We are building command-centre-first software: the map is a tool the Agent uses, not the product.
The difference
Don’t just ask AI. Give it a job.
Most AI answers questions. Precifarm Agent works through the design step by step, with the same discipline we use commissioning hardware in the field.
- 01
Understand
- 02
Plan
- 03
Research
- 04
Calculate
- 05
Design
- 06
Check
- 07
Iterate
- 08
Deliver
Interaction modes
You always know what the Agent is allowed to do.
Every screen shows the active mode. Today's workspace runs Ask and Plan only; Act and Auto come with approval controls.
Ask
Answer only
Questions, explanations and what-if scenarios. Zero changes to schedules, payments or hardware.
Plan
Recommend a path
Trip, charge schedule, bill of materials or upgrade plan, presented for review, not executed.
Act
Execute with approval
Book a survey, start a session, export a report, only after you confirm.
Auto
Your rules, narrowly
Low-risk automations you define (e.g. charge before 7 AM). Never silent money or vehicle control.
Progress & roadmap
Shipped, in build, and next.
In the wild today
- · Web workspace in early access, Ask and Plan modes
- · Ten-tool engineering kernel: EV, solar, battery, inverter, voltage drop, protection, cost, products
- · Calculation trace with evidence labels on every reply
- · Precifarm Agent early access on Android
In active build
- · Kenyan benchmark: 50 real survey cases graded by registered engineers (Q1 2027)
- · Install pack export: calc sheet, single line diagram, parts list (Q2 2027)
- · Use on live Pulse home surveys with partner installers (Q3 2027)
Next horizon
- · Desktop workspace and survey to quote handover
- · Journey planning: route, charge stops, cost and time
- · M-Pesa and Lipa Pole Pole actions behind explicit approval
- · Wireless pad site modelling, shared with the R&D programme
Core agent loop
Observe, plan, verify, act: with consent.
Specialized backend agents, one Precifarm face. Verify always includes tools, permissions and data freshness.
- Observe
- Understand
- Plan
- Verify
- Propose
- Approve
- Act
- Confirm
- Learn
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 and related numbers update with it.
08
Deliver
Get calcs, diagrams, parts lists, reports and install notes.
What it covers
Built for real energy work.
EV charging
- · Charger size
- · Charge time
- · Daily energy
- · Site power
- · Cost to charge
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, deterministic tools run the numbers, validate inputs and attach notes on what still needs checking.
- Your brief
- AI Agent
- Engineering tool
- Clear calculation
- Check
- Result
EV energy
calculateEvEnergy()
Charge time
calculateChargingTime()
Peak load
calculatePeakLoad()
Solar
sizePvSystem()
Battery
sizeBattery()
Inverter
sizeInverter()
Cables
calculateVoltageDrop()
Protection
sizeProtection()
Costs
calculateEnergyCost()
Products
lookupPrecifarmProduct()
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
Hardware meets software
Agent is an R&D programme with a public goal.
Target: agree with engineer-checked reference designs on at least 90% of a 50-case Kenyan benchmark by Q2 2027, then run on every Precifarm home survey. Progress, gates and the path are published on the R&D page.
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 agentic AI for EV charging, solar, batteries and electrical systems, not customer-service chat. It plans the work, runs real calculators, and labels every result as calculated, estimated, or needing a site check.
Does the AI do the maths itself?
No. The Agent decides what to calculate; ten deterministic engineering tools do the maths. Every reply shows a calculation trace with each tool call, its result and its evidence label.
Is Precifarm Agent live today?
Yes, in early access. The web workspace is open at precifarm.com/agent/chat and on this page, with ten engineering tools. Android is available on request, and engineers can run it locally with OpenCode from 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 accelerate early design. Safety-critical work still needs a physical visit and a qualified professional.
Will it pay with M-Pesa or control my car?
No. Today's workspace runs in Ask and Plan modes only, with no side effects. Act and Auto modes, with explicit approval for anything involving money or a vehicle, are on the roadmap.
Start with the problem. Scale to the journey.
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.