Executive Summary

Homeowners (and the installers, retailers and lenders advising them) struggle to size solar plus batteries and pick the lowest‑cost tariff because existing tools use coarse monthly estimates and ignore hour-by-hour load, PV output and dynamic pricing, so savings are often over- or under-stated. That creates missed opportunities for households adding EVs or heat pumps and friction for channels that need scalable, accurate proposals and leads. You could build a telemetry-driven SaaS and consumer app that ingests smart‑meter/IoT data, weather/PV models and tariff schedules to run hourly simulations, recommend optimal solar+battery sizing and dispatch rules, and surface the lowest-cost tariff and switching workflow. Monetize via advisory fees, lead-generation and licensing, targeting the ~$480/year average revenue per household in the market model. The addressable market is about 20M target households (~$9.6B at $480/year), with a Market Score of 88/100 and Revenue Potential 78/100; demand is accelerating because electrification raises household load and retail pricing is shifting to time-of-use and dynamic structures while smart meters make personalization feasible at scale. You can stand out by combining true telemetry-based hourly simulation, automated tariff optimization and go-to-market partnerships with installers and retailers to validate and deliver savings, but the main challenges are securing reliable data access, navigating retailer regulations and keeping customer acquisition costs low through pilot-validated ROI.

Market Opportunity

Help homeowners size solar+battery and pick the lowest-cost tariff targets a $9.6B = 20M target households × $480 average yearly advisory/lead/license revenue total addressable market with medium saturation and a year-over-year growth rate of 15-20% YoY — based on residential solar + battery adoption and tariff innovation (sources: IEA, Wood Mackenzie).

Key trends driving demand: Electrification of transport and heating is increasing household electricity demand, creating a larger addressable market for combined solar, battery and tariff optimization.; Retail electricity pricing is moving toward time-of-use and dynamic structures, which makes monthly-bill-focused calculators obsolete and increases demand for hourly simulation tools.; Smart meter rollouts and IoT telemetry make it feasible to run personalized simulations at scale and automate tariff switching or battery dispatch recommendations..

Key competitors include EnergySage, Octopus Energy / Kraken-powered tools, Uswitch / Compare the Market / MoneySuperMarket.

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Help homeowners size solar+battery and pick the lowest-cost tariff

Executive Summary

Market Validation

Market Opportunity

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