Engineering
One site design — grid, solar, storage and chargers.
Precifarm engineers home, fleet and highway charging as a single system: Kenya Power import, optional PV and LiFePO₄, duty-cycle chargers and OCPP commissioning. This page is the web summary; the PDF is the full design basis and task sheet.
PF-ENG-SOLAR-HUB-001 · v1.1 · 16 August 2026
Who this is for
Homeowners, fleet operators and hub hosts.
Home & hybrid
Pulse on your meter, Pod when the grid dips, optional rooftop solar. Sized to daily mileage — not speculative public capacity.
Fleet & depots
Depot AC where vehicles park for hours, Boda Hub swap for two-wheelers. Yard layout, billing and uptime in one engineering pack.
Highway & route
Corridor T-canopy DC where the route needs it. Import limits, dwell and M-Pesa sessions engineered for public and fleet EV traffic.
By setting
What we engineer on each site type.
Planning assumptions — every job starts with survey and a written quote.
| Setting | Typical hardware | Engineering focus |
|---|---|---|
| Urban home | Pulse · Pod · Spark | Consumer unit, cable route, meter, optional PV |
| Fleet yard | Depot · Boda Hub | Duty cycle, bay count, import limit, M-Pesa billing |
| Highway stop | Corridor T-canopy | Dwell layout, dual CCS2, public DC tariff, CSMS |
| Partner retail | Depot or host AC | Footfall, landlord meter, session settlement |
Energy stack
What sits behind the charger.
Solar does not replace Kenya Power — it cuts cost and adds resilience. Storage peak-shaves when the feeder cannot deliver the charger's peak kW.
| Layer | Role | Status |
|---|---|---|
| Grid | Kenya Power connection and e-mobility tariff first | Available |
| Solar | Canopy or rooftop PV — cost, shade, daytime yield | Available |
| Storage | LiFePO₄ to peak-shave and back up charging loads | Available |
| Charging | Corridor DC, Depot AC, Pulse wallbox — sized to duty cycle | Available |
| Software | OCPP monitoring, status, session records, M-Pesa | In service |
Product fit
Which charger for which job.
Pulse charger
Corridor charging
Depot charging station
Boda Hub
| Product | Best for | Engineering note |
|---|---|---|
| Pulse · 7 kW | Home daily charging | Type 2 AC on customer meter · from KES 79,000 |
| Pod + solar | Weak-grid evenings | Hybrid sub-board · optional rooftop PV |
| Depot · 22 kW | Fleet yards | AC overnight · ~120 min for 40+ kWh |
| Corridor · 120 kW+ | Highway DC | T-canopy · ~60 kWh in 30 min · from KES 39/kWh |
| Boda Hub | E-motorbike swap | Kerbside or depot · under 5 minutes |
Kenya approvals
Hold points before we build.
Full checklist and acceptance tests are in the PDF task sheet.
| Gate | Authority / scope | Typical output |
|---|---|---|
| Load & connection | Kenya Power | Import limit, tariff class, offer letter |
| Electrical install | Licensed contractor + EPRA | Signed line diagram, test sheet |
| Environment | NEMA where triggered | Screening or licence per site |
| Fire & safety | County fire / occupier | Access, extinguishers, signage |
| Commission | Precifarm CSMS | OCPP probe, M-Pesa test session, handover |
How it runs
Survey to commissioned site.
- 01
Intake & survey
Property or route visit, photos, single-line sketch.
- 02
Design basis
Energy model, equipment schedule, Kenya Power application pack.
- 03
Quote & approve
Written quote, Lipa Pole Pole option on home units where eligible.
- 04
Install & test
Civil, electrical, charger mount, protection tests.
- 05
Commission
OCPP, M-Pesa, app listing, three-year aftersale on home units.
Figures
Visual design basis.
Concept imagery for route hub, system architecture, typical two-bay plan and home hybrid. Not construction drawings — the PDF includes the full annex.
Planning questions
Common engineering questions.
Illustrative planning only — not quotations. Public DC from KES 39/kWh.
Who is the engineering package for?
Homeowners sizing Pulse or Pod with solar, fleet and property partners planning Depot or Boda Hub yards, highway hosts scoping Corridor T-canopy DC, and sites exploring modular energy storage. The package covers EV charging and energy systems — not passenger booking or bus timetable products.
Does solar replace the Kenya Power connection?
No. A 40–80 kWp canopy in Kenya yields roughly 180–440 kWh/day. Against an illustrative 1,500 kWh/day hub, PV covers about 12–30% of daily energy. Use solar for cost, shade and resilience — not as a substitute for the Kenya Power feeder. Planning assumption.
Why add batteries at a charging hub?
When peak charger demand exceeds the Kenya Power import limit, LiFePO₄ storage covers the gap and smooths demand charges. Example: 120 kWh in 30 minutes at ~240 kW with a 180 kW import limit needs storage for the difference plus reserve. Site-specific — not a bill of quantities.
Are the engineering cost figures a quotation?
No. Planning bands and worked examples in the PDF are illustrative. Live public DC is from KES 39/kWh. Pulse starts from KES 79,000. Request a site-specific cost sheet after survey.
Full design doc + task sheet
PDF includes the energy model, site plan, Kenya hold points and full engineering task sheet.
- • Home hybrid and private-house design bases
- • Solar canopy and LiFePO₄ sizing methods (planning assumptions)
- • Concept single-line and typical two-bay site plan
- • Fleet depot and campus station design bases
- • Highway DC and storage peak-shave worked examples
- • Kenya Power, EPRA, NEMA and fire hold points
- • Phased task sheet with owners, outputs and acceptance tests
Ready for a site-specific pack?
Tell us home, fleet or highway. We respond within one business day with next steps.