Practical guides for energy monitoring, dynamic tariffs, EV charging, heat pumps, and peak control. No programming required.
Get Your Guide Now →No guaranteed savings: measure a baseline, test in dry-run mode, and verify the result against your own tariff and equipment.
Energy data can reveal avoidable use and cheaper operating windows, but turning that data into safe automations is technically demanding.
SmartWattFlow provides Home Assistant energy guides that explain the required inputs, configuration, validation, and troubleshooting.
Step-by-step tutorials to transform your home into an energy-efficient smart home
Complete guide to building professional energy monitoring dashboards, automations, and cost-saving systems.
Price in EUR. Taxes/VAT handled at checkout.
Charge an already-connected EV when price or solar conditions are favourable, and stop safely when the data cannot be trusted.
Price in EUR. Taxes/VAT handled at checkout.
A bounded comfort controller for a heat pump that already works. Small, safe setpoint requests - never installer settings.
Price in EUR. Taxes/VAT handled at checkout.
See where your quarter-hour peak is heading while the quarter is still running - and decide what to postpone before it ends.
Price in EUR. Taxes/VAT handled at checkout.
Turn a supported price sensor into dependable cheap-now, expensive-now and stale-data signals - without treating missing data as free power.
Launch price for the first 20 buyers, applied automatically. €59 after that. Price in EUR. Taxes/VAT handled at checkout.
Local-first sensor setups for accurate energy data—built with ESPHome and ready for SmartWattFlow dashboards (EU + North America).
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Detailed walkthrough with annotated YAML and architecture diagrams. You'll need a working Home Assistant install, energy monitoring hardware, and basic familiarity with YAML and the HA interface.
Copy-paste YAML configurations. Save hours of trial and error.
Free compatibility updates for 24 months as platforms evolve.
Concrete product commitments, independent of any savings outcome
Start with ready-to-use automations that help you identify and act on avoidable energy use. Subscribe for instant access plus monthly tips.
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Illustrative arithmetic only—the inputs are assumptions, not a savings forecast
4,000 kWh annual consumption • €0.30/kWh average rate
2,000 kWh heating × an illustrative 5% measured reduction × €0.30/kWh
4 kWh/week × 52 × (€0.30 peak − €0.15 off-peak)
20 W avoided × 16 hours/day × 365 × €0.30/kWh
This is not a forecast or guarantee. Replace every assumption with measured consumption, actual tariff spreads, equipment efficiency, and observed before/after data.
Try any guide risk-free. If you're not satisfied with your purchase, contact us within 30 days for a full refund. No questions asked.
Each product page lists the delivered files before checkout. Current kits include a localized guide and configuration files in a ZIP; the Dashboard bonus is supplied as a PDF.
No programming expertise is required, but you must replace marked entity IDs, follow the eligibility checks, and validate the result in Home Assistant.
The current catalogue is Home Assistant only. Retired Homey material may remain available to existing buyers but is not included with current products.
Yes! Every purchase includes 24 months of compatibility updates at no additional cost.
