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CLUSTER SOLAR-WEB-ENERGY · 42 ENTRIES · EARLIEST ENTRY 2025-05-16

Solar savings and sizing calculators

This cluster consists of web and mobile tools that estimate solar energy potential, size PV and battery systems, and calculate savings, payback, and ROI for residential, RV, and commercial users. The dated history is thin: one entry in April 2023, followed by single entries in May 2025, June 2025, October 2025, and May 2026, showing no clear trend before the index began. All traction leaders (urja-saathi, voltsage-testing, solar-savings-calculator-sp-new-view) have zero stars, indicating minimal user engagement or visibility.

Entry timeline

ENTRY TIMELINE

APR 2023: 1MAY 2025: 1JUN 2025: 1OCT 2025: 1MAY 2026: 1AUG 2026: 27SEP 2026: 10
APR 2023SEP 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 15 ai-built · 5 unlabelled

Operator · 5 commercial · 15 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 21Solar Power Economic Impact0★unknownliveai-builtWeb tool that calculates the financial savings and economic impact of installing residential solar power systems.
  2. 22roofup-solar-insight0★unknownliveai-builtWeb app that calculates photovoltaic system sizing and potential savings for residential solar panel installations.
  3. 23PEC Energy Savings Calculator0★unknownliveai-builtWeb app that calculates energy savings for PEC, helping users estimate potential cost reductions from energy efficiency improvements.
  4. 24Vaulta Home Energy Storage Independence Calculator - Path to Energy Independence0★unknownliveai-builtWeb app that calculates personalized solar and battery system sizes to help homeowners achieve grid independence.
  5. 25RV Off-Grid Energy System Designer0★unknownliveai-builtWeb tool that helps RV owners plan and size solar, battery, and power components for an off-grid energy system.
  6. 26Duurzaam Hypotheek Advies - Rentekortingen bij Verduurzaming0★unknownliveai-builtWeb app that compares mortgage interest discounts for energy-efficient home improvements and calculates monthly costs by energy label.
  7. 27Solar Battery Calculator0★unknownliveai-builtWeb app that calculates solar battery requirements based on user inputs for home energy usage.
  8. 28ALPINE Off-Grid Planner | Estimate Your Off-Grid Capability0★unknownliveai-builtWeb tool that estimates off-grid power for a camper based on battery capacity, solar input, travel style, and appliance use.
  9. 29Solarvergleich 2026 | Photovoltaik kostenlos vergleichen0★unknownlivecommercialFree online service that compares solar photovoltaic offers, costs, and subsidies in under three minutes.
  10. 30Solar Savings Calculator0★unknownliveWeb app that calculates potential savings from solar panel installation based on user-provided energy usage and costs.
  11. 31Solar Kit Calculator0★unknownlivecommercialSolar energy calculator that estimates usage and recommends solar kits for homes.
  12. 32Räkna med solskydd0★unknownliveInteractive web application estimating how solar shading affects indoor temperature and energy use for building owners and managers.
  13. 33Groupe Delaud Énergie0★unknownliveai-builtFree instant simulation tool that evaluates a home's solar potential for a greener energy future.
  14. 34Duurzaam Hypotheek Advies - Rentekortingen bij Verduurzaming0★unknownliveai-builtWeb app that compares mortgage interest discounts for sustainable home improvements by energy label and calculates monthly costs.
  15. 35Solar PV Savings Calculator0★unknownliveai-builtWeb app that calculates potential cost savings from commercial solar photovoltaic installations based on user inputs.
  16. 36Solar PV System Sizing & STC Rebate Calculator | Bright Spark Solar0★unknownliveai-builtcommercialWeb calculator that estimates required solar panel system size and Australian STC rebate amount from a household electricity bill.
  17. 37Solar Navigator0★unknownliveai-builtWeb app that guides homeowners in Singapore through solar energy system sizing, savings estimates, and battery-ready options for their property.
  18. 38Tru Cost Solar0★unknownliveWeb app that estimates solar panel costs and savings for homeowners.
  19. 39Solar Battery Sizing Calculator | Pennstar Solar - Philadelphia, PA0★unknownliveai-builtcommercialInteractive calculator that helps Philadelphia homeowners determine solar battery capacity and backup power needs using DOE data and appliance profiles.
  20. 40Standing Charge Impact Calculator | NFU Energy0★unknownliveai-builtcommercialWeb app that calculates the impact of electricity standing charge changes on farming businesses.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.