Independent engineering guide
Read the architecture—not just the label.
This guide separates nameplate language from the operating evidence a Philippine buyer needs. It is educational decision support: the exact design, availability, certification and authority route must be confirmed for the selected model and site.
kW • kWh • V • A • Hz
What the technology actually is
EV charging converts transport schedules into electrical load. Charger power, dwell time, simultaneity, vehicle acceptance rate and control determine the real demand; installed charger kilowatts are not the same as site peak.
Coordinate charger power, dwell time, fleet schedule, transformer capacity, tariff, solar coincidence, BESS dispatch, access control and billing boundaries.
LOAD • DUTY • INTERFACE
Where it can create value
Solar can offset daytime fleet or customer charging, while BESS can reshape short peaks or support a constrained transformer. The value depends on arrival patterns and required energy by departure, not on annual solar balance.
- Adding chargers can create a new peak even when annual solar generation appears sufficient on paper.
- The decision crosses operating, electrical, commercial or regulatory boundaries.
- Management needs a defensible next step before committing capital.
HEAT • SURGE • CONTROL • SERVICE
What commonly breaks the business case
Unmanaged charging can create a new tariff peak after solar production falls. Nameplate aggregation can also trigger unnecessary transformer upgrades, while optimistic diversity can leave vehicles undercharged during the busiest shift.
- For EV charging integration, we test the site data, interfaces, operating limits, commercial assumptions and evidence needed for acceptance.
- Available bills, interval data, drawings, settings, contracts and operating records.
- Assumptions, contradictions, missing evidence and the party responsible for each dependency.
SPECIFY • CONTRACT • TEST
Evidence to request before a binding offer
Collect vehicle arrival, departure and energy requirements; model controlled and uncontrolled cases; review transformer and feeder capacity, protection, communications and billing; define charger availability, override rules, user access and measurable smart-charging acceptance tests.
- A project-specific ev charging integration scope with priorities, owners, open dependencies and measurable acceptance criteria.
- A decision memo that separates verified facts from assumptions.
- Prioritized actions, owners and acceptance evidence for the next stage.
RLHS • DECISION LEDGER
Four questions that keep procurement measurable
- 01INPUT
What measured site data defines the duty?
- 02INTERFACE
What voltage, protection, control and data boundaries must match?
- 03GUARANTEE
Which usable result is contractually promised at end of life?
- 04TEST
How will the operating result and failure recovery be witnessed?