A

EV Charging Rate Comparison Alert

3.85

Derivation Chain

Step 1 Tesla European registration decline / BEV market growth
→
Step 2 Growing EV consumer base
→
Step 3 Charging cost optimization service

Problem

Korea has over 600,000 EV drivers, but the 20+ charging providers (Ministry of Environment, ChargeV, Everon, etc.) each have kWh rates that differ by $0.04-$0.07, with varying time-of-day and membership tier discounts — resulting in up to 30% monthly charging cost differences. Drivers have no way to compare, so they default to the nearest station and overspend $150-$300 per year.

Solution

An app that compares real-time rates, availability, and discount conditions at nearby charging stations based on current location or route, analyzes monthly charging patterns, and recommends the optimal charging subscription/membership combination. Push notification before charging: 'There's a station 500m away that's $0.02/kWh cheaper.'

Target: EV commuters driving 50+ km daily, working professionals aged 30-50
Revenue Model: Premium ~$2.20/mo (detailed analysis + alerts), Free tier (comparison only), charging provider referral commission ~$0.38 per transaction
Ecosystem Role: Consumer
MVP Estimate: 2_weeks

NUMR-V Scores

N Novelty
2.0/5
U Urgency
5.0/5
M Market
5.0/5
R Realizability
4.0/5
V Validation
3.0/5
NUMR-V Scoring System
N Novelty1-5How uncommon the service is in market context.
U Urgency1-5How urgently users need this problem solved now.
M Market1-5Market size and growth potential from proxy indicators.
R Realizability1-5Buildability for a small team with realistic constraints.
V Validation1-5Validation signal quality from competition and demand data.
Each dimension is scored 1-5 and weighted into grade S/A/B/C/D.
SaaS N=.15 U=.20 M=.15 R=.30 V=.20 Senior N=.25 U=.25 M=.05 R=.30 V=.15

Feasibility (70%)

Tech Complexity
29.3/40
Data Availability
20.8/25
MVP Timeline
20.0/20
API Bonus
0.0/15
Feasibility Breakdown
Tech Complexity/ 40Difficulty of core implementation stack.
Data Availability/ 25Practical availability and cost of required data.
MVP Timeline/ 20Expected time to ship a usable MVP.
API Bonus/ 15Bonus for viable public API leverage.
Total 100 points; below 50% is filtered out.

Market Validation (52/100)

Competition
8.0/20
Market Demand
6.2/20
Timing
16.0/20
Revenue Signals
4.5/15
Pick-Axe Fit
10.5/15
Solo Buildability
7.0/10
Validation Breakdown
Competition/ 20Signal quality from competitor landscape.
Market Demand/ 20Demand proxies from search and mention patterns.
Timing/ 20Fit with current shifts in tech, behavior, and regulation.
Revenue Signals/ 15Reference evidence for monetization viability.
Pick-Axe Fit/ 15How well the concept serves participants in a trend.
Solo Buildability/ 10Practicality for lean-team implementation.
Total 100 points; below 50 is filtered out.

Technical Requirements

Backend [medium] Frontend [medium] Data Pipeline [low]
Dashboard