| Item | Amount |
|---|
| Wallbox (Legrand/Schneider, partner price) | €500 |
| Cable, protection, accessories | €200 |
| Labor (4-6 hours × €65/h) | €350 |
| Total cost | €1,050 |
| Client price | €2,200 |
| Gross margin | €1,150 (52%) |
| ADVENIR subsidy recovered by client | -€960 |
| Net cost to client | €1,240 |
| Item | Amount |
|---|
| Connected wallbox (Easee/Wallbox) | €900 |
| Cable, panel upgrade, accessories | €600 |
| Labor (8-10 hours × €65/h) | €585 |
| Total cost | €2,085 |
| Client price | €4,500 |
| Gross margin | €2,415 (54%) |
| ADVENIR subsidy | -€960 |
| Net cost to client | €3,540 |
| Item | Amount |
|---|
| KNX components (actuators, sensors, display) | €3,500 |
| Cabling and infrastructure | €800 |
| Labor (3-4 days × 8h × €65/h) | €1,820 |
| ETS programming (1 day) | €520 |
| Total cost | €6,640 |
| Client price | €12,000 |
| Gross margin | €5,360 (45%) |
| Item | Amount |
|---|
| KNX components | €12,000 |
| Cabling and infrastructure | €2,500 |
| Labor (7-10 days) | €4,550 |
| ETS programming (2-3 days) | €1,560 |
| Integration testing | €520 |
| Total cost | €21,130 |
| Client price | €40,000 |
| Gross margin | €18,870 (47%) |
| Item | Amount |
|---|
| Combined equipment | €5,000 |
| Shared infrastructure (cable, panel) | €1,000 |
| Labor (5 days) | €2,600 |
| Programming + testing | €780 |
| Total cost | €9,380 |
| Client price | €16,500 |
| Gross margin | €7,120 (43%) |
| Integration savings vs separate | €1,500 for the client |
| Item | Amount |
|---|
| 2 scheduled visits/year (4h each) | €520 |
| Travel costs | €60 |
| Total cost | €580 |
| Annual contract price | €1,200 |
| Gross margin | €620 (52%) |
| Monthly recurring revenue per contract | €100 |
| Channel | Cost per Lead | Conversion Rate | CAC |
|---|
| Direct referral | €0 | 60% | €0 |
| Client referral program | €200 (credit) | 50% | €400 |
| Architect partnerships | €50 (lunches/networking) | 30% | €167 |
| Organic content / SEO | €100 (time cost/month ÷ leads) | 20% | €500 |
| Google Ads | €3 CPC × 100 clicks | 5% | €600 |
| Instagram Ads | €2 CPM × reach | 2% | €800 |
| Year | Channel Mix | Average CAC |
|---|
| Year 1 | 60% referrals, 30% organic, 10% paid | €200 |
| Year 2 | 40% referrals, 40% organic/partnerships, 20% paid | €300 |
| Year 3 | 50% referrals/partnerships, 30% organic, 20% paid | €280 |
| Indicator | Value |
|---|
| Average first project | €5,000 |
| Upsell probability (IRVE → KNX) | 30% |
| Average upsell value | €12,000 |
| Expected upsell revenue | €3,600 |
| Referral value (20% refer × €5,000) | €1,000 |
| Total LTV | €9,600 |
| Indicator | Value |
|---|
| Average first project | €5,000 |
| Expected upsell revenue | €3,600 |
| Maintenance (3-year average × €1,200) | €3,600 |
| Referral value | €1,000 |
| Total LTV | €13,200 |
| Scenario | LTV | CAC | Ratio | Verdict |
|---|
| Year 1 (warm leads) | €9,600 | €200 | 48:1 | Excellent |
| Year 2 (mixed) | €13,200 | €300 | 44:1 | Excellent |
| Paid ads only | €9,600 | €700 | 14:1 | Good |
| Worst case | €5,000 | €800 | 6:1 | Acceptable (threshold >3:1) |
Benchmark: A healthy business maintains an LTV:CAC ratio >3:1. We are well above that, even in the worst-case scenario.
| Cost | Amount |
|---|
| Vehicle lease + fuel | €500 |
| Insurance (professional liability + décennale) | €300 |
| Tool depreciation | €150 |
| Phone + internet | €50 |
| Accountant | €100 |
| Software and subscriptions | €50 |
| Marketing budget | €200 |
| Social contributions (ACRE Year 1) | ~€300 |
| Total monthly fixed costs | €1,650 |
| Indicator | Value |
|---|
| Monthly fixed costs | €1,650 |
| Average gross margin per project | 45% |
| Average project value | €5,000 |
| Average gross profit per project | €2,250 |
| Projects needed to break even | 0.73 = 1 project |
| Annual break-even revenue | €44,000 |
| Break-even incl. salary (€3,000/month) | €124,000 |
To pay yourself €3K/month and cover all costs: approximately 2 projects/month averaging €5K.
| Service | Projects | Avg. Value | Revenue | % |
|---|
| Standard IRVE | 10 | €2,200 | €22,000 | 18% |
| Premium IRVE | 6 | €4,500 | €27,000 | 23% |
| Integrated package (IRVE+KNX) | 4 | €16,500 | €66,000 | 55% |
| Maintenance contracts | 5 | €1,200 | €6,000 | 5% |
| Total | 25 | | €121,000 | |
| Service | Projects | Avg. Value | Revenue | % |
|---|
| IRVE (standard + premium) | 18 | €3,500 | €63,000 | 32% |
| Integrated package (IRVE+KNX) | 6 | €16,500 | €99,000 | 50% |
| KNX-only projects | 2 | €12,000 | €24,000 | 12% |
| Maintenance contracts | 12 | €1,200 | €14,400 | 7% |
| Total | 38 | | €200,400 | |
| Service | Projects | Avg. Value | Revenue | % |
|---|
| IRVE | 24 | €3,500 | €84,000 | 28% |
| Integrated package | 8 | €18,000 | €144,000 | 48% |
| KNX-only projects | 3 | €15,000 | €45,000 | 15% |
| Maintenance contracts | 25 | €1,200 | €30,000 | 10% |
| Total | 60 | | €303,000 | |
Maintenance grows from 5% to 10% of revenue = solid recurring base.
Monthly tracking:
| Indicator | Year 1 Target | Alert If |
|---|
| Projects completed | 2/month | <1/month for 2 consecutive months |
| Average project value | €5,000 | <€3,000 (slipping toward mid-market) |
| Gross margin | >40% | <35% (pricing or cost issue) |
| Average CAC | <€300 | >€500 (declining acquisition efficiency) |
| Referral rate | >20% | <10% (customer satisfaction issue) |
| Maintenance sign-up rate | >25% | <15% (recurring model not viable) |
| Delivery time | <7 days | >14 days (efficiency issue) |
| Collection period | <30 days | >45 days (cash flow risk) |