Category evidence
We do not know, and we will not pretend to. Ranking software here would need five products each carrying eight verified first-party reviews. Today 0 products are scored, so any ordered list would be opinion dressed as research.
What follows is the evidence for all 5 products in this category, unordered, with the “best suited for” classifications the data does support.
Verified against the vendor’s own pages.
Why this page is not indexed
This page carries a noindex directive. Blocking gate on record:
G-data (no scored products until reviews land)
This category holds 5 products, so it can clear the five-product gate once reviews arrive. That is a deliberate constraint, not a gap to be filled later with an opinion.
Blank cells are excluded from the denominator, never scored as zero. Vendor claims count at half the weight of verified facts. Products whose surface we could not read are not scored at all. And the publisher’s own products are excluded from every ranking, permanently. Full methodology
Listed alphabetically. The ordering carries no judgement.
| Product | Best suited for | Price | Model | Verified points |
|---|---|---|---|---|
| Genability (Arcadia) | Utility-scale work | Not publicly disclosed | Quote only | 13 |
| Meteonorm | Utility-scale work | Not publicly disclosed | Quote only | 12 |
| SolarAnywhere | Utility-scale work | USD 500 | Per unit of usage | 17 |
| Solcast | Utility-scale work | Not publicly disclosed | Quote only | 11 |
| UtilityAPI | Utility-scale work | USD 1.50 | Per unit of usage | 11 |
Arcadia
Weather, tariff & utility data · Web
The US electricity tariff database and rate-calculation engine that sits underneath other companies' solar savings numbers — now sold by Arcadia under the name Signal, with the Genability brand retired from all public marketing but still live in the API hostname.
Meteotest AG
Weather, tariff & utility data · Web
The Swiss climate database that generates a typical meteorological year for any point on earth — the TMY file that PVsyst, PV*SOL, Polysun and SAM all import — now rebuilt as a web application plus four REST APIs (Climate, Observation, Forecast, Horizon).
Clean Power Research, L.L.C.
Weather, tariff & utility data · Web
Clean Power Research's satellite-derived solar resource dataset — historical back to 1998, real-time, and forecast — built on the Perez/SUNY Albany irradiance model, sold as web access and an API, with free PV power modelling (PVWatts and pvlib) bundled into every licence.
Solcast
Weather, tariff & utility data · Web
A global satellite-derived solar irradiance, weather and PV-power API — historic back to 2007, live to the last five minutes, and forecast to +14 days — delivered as data, not as an application.
UtilityAPI
Weather, tariff & utility data · Web
The customer-authorisation and utility-data-collection layer: it gets a US electricity customer's permission, connects to their utility account, and delivers their meter details, their actual bills and their 15-minute interval usage to whoever they authorised — over a fully documented public API with a fully published price list.
