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Zorowatt vs Energy Toolbase

Where Energy Toolbase is strong, where it falls short, and what changes if you switch. Every number can be checked on their site.

Energy Toolbase (ETB Developer) is modelling and proposal software for solar and storage developers and installers in the US, sold alongside its own controller and monitoring hardware. Zorowatt is a self-serve browser tool for European business sites, with its prices on the website. (energytoolbase.com)

Short answer
When to pick Energy Toolbase
Pick Energy Toolbase if you develop solar and storage in the US and want rate and incentive modelling, proposals and the ETB Controller hardware from one company.
When to pick Zorowatt
Pick Zorowatt if your sites are in the Netherlands, Germany or Romania, you want to see the price before a demo call, and you need the bill rebuilt from 15-minute data and checked against the invoices.

Facts about the other tool read on 2026-10-28 from the pages linked in each cell. Prices and features change; check the vendor's page before you rely on one.

FeatureZorowattEnergy Toolbase
PriceFree €0 · Starter €49 / month · Pro €149 / month · Enterprise on requestETB Developer: no published price ("Request Pricing" after a demo call); until March 2026 the page listed Lite $170 and Standard $224 per user a month, billed annually. ETB Monitor from $4,700 (one meter, one-year subscription plus hardware); ETB Controller bundles "as low as" $12,400 / $34,000energytoolbase.com, web.archive.org · 2026-10-30
Bill reconstructionRebuilt from the meter data under a versioned tariff and set against the real bill, component by componentRate and incentive modelling; the incentives named are American (such as SGIP)energytoolbase.com · 2026-10-28
Battery dispatchRule-based, with the optimal (LP) dispatch as the upper bound; every saving is billed by the same bill engineStorage revenue streams modelledenergytoolbase.com · 2026-10-28
Battery productsA database of commercial and industrial products, every spec with its sourceEquipment configuration; ETB's own Controller and Monitor hardware sold separatelyenergytoolbase.com · 2026-10-28
Battery operationPlanning only: no live battery control, no tradingETB Controller and ETB Monitor hardware, plus consultingenergytoolbase.com · 2026-10-28
FinancialsNPV, IRR and payback, with degradationProject economicsenergytoolbase.com · 2026-10-28
Client reportPDF report for the client; white-label on ProProposal generationenergytoolbase.com · 2026-10-28

In short

Energy Toolbase is built for US solar and storage developers, with proposals, incentives and its own hardware in one offer. Zorowatt does one part of that, the feasibility study, for European sites, and sells no hardware. If your projects are American, Energy Toolbase fits the market it was built for; if they are Dutch, German or Romanian, Zorowatt brings the tariffs with it.

Price per year

Energy Toolbase
No published price today; until March 2026, Lite $170 and Standard $224 per user a month, billed annually
Zorowatt
Starter €588 a year (€348 at the founding price) · Pro €1,788 a year for 3 seats · single analyses €15

As each vendor's page states it; prices in other currencies are not converted.

How to switch

Upload the interval data or Green Button file you imported into Energy Toolbase.

  1. Upload the site's meter data to the free data checker or the Workspace: every assumption made reading the file is listed.
  2. Pick the site's tariff and enter the invoices: the bill check shows whether the baseline matches before anything is sized.
  3. Size the battery, compare it with your earlier study, and send the client the PDF report.

Questions

How much does Energy Toolbase cost?
Its pricing page shows no price for ETB Developer: it says "Request Pricing" and prices by team size after a demo call (read on 2026-10-28). The hardware is priced: ETB Monitor from $4,700, ETB Controller bundles from $12,400 or $34,000. Zorowatt Starter is €49 a month for 3 site analyses, then €15 each; Pro is €149 a month with a white-label report and 3 seats. Your first site analysis is free, with no card.
Does Energy Toolbase cover European tariffs?
This page makes no claim either way. Energy Toolbase's help pages describe its rate library, interval data import and Green Button support, but the research read them only as search snippets, so they are left out until someone reads the full pages.
Does Zorowatt sell hardware or control the battery?
No. Zorowatt is planning only: no live battery control and no trading. It recommends no brand; its battery database lists products from many manufacturers, every spec with its source.
Which meter files does Zorowatt read?
CSV, TSV and Excel exports, German MSCONS files and Green Button files, in 15-minute or hourly steps. The free meter data checker runs the same import and checks on your file in the browser.
Free tools

Try it on your own file first

Both tools run in the browser with no account; the file is not uploaded.

Looking for a Energy Toolbase alternative?

Zorowatt runs in the browser, reads the site's own meter data and rebuilds its bill before it sizes anything.

Energy Toolbase alternative for C&I battery studies in Europe →

Switching?

Bring a site you already studied: upload its meter data and bills, and set the result next to your old one.

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