
EcoEnergyCalc
Energy Bot
MyElectricCalc
elec calc
PowerCalcHub
CampPowerCalc
WattFacts
Free, accurate calculators for home energy savings — solar payback, heat pumps, EV charging, appliance running costs and more. No signup.

Microsoft Visual Studio
IntelliJ IDEA
Xcode
VS Code
Netbeans
PyCharm
PhpStorm
Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.

Which is more popular?
Based on our record, Eclipse seems to be more popular. It has been mentioned 9 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | howmuchwatts.com | eclipse.org |
| Pricing | — | |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Eclipse yet.
Walkthroughs and reviews on video.
No HowMuchWatts videos yet. You could help us improve this page by suggesting one.
Review: 2008 Mitsubishi Eclipse GT V6 (Manual)
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing HowMuchWatts and Eclipse.
HowMuchWatts's answer
HowMuchWatts is a free suite of 50+ home energy calculators - no signup, no ads gating the result. Every calculator shows its formula and updates live as you type, so you can see exactly how the number was reached rather than trusting a black box. It also includes an appliance power-consumption reference chart and plain-English guides (solar payback, heat pump vs gas, EV charging costs) that pair with the calculators instead of just linking out.
HowMuchWatts's answer
Most energy calculators are either buried in signup walls, ad-heavy, or give a single number with no way to check the math. HowMuchWatts is: - Free, no account needed - Transparent - the formula is shown alongside every result - Focused - 50+ calculators covering solar, heat pumps, EVs, and appliances specifically, not a generic all-purpose calculator site - Embeddable - any blog can drop a calculator into a post for free
HowMuchWatts's answer
Homeowners and renters trying to make a specific energy decision - is solar worth it, should I switch to a heat pump, what will an EV cost to charge, what is this appliance actually costing me. Secondary audience: bloggers and content sites in the home/energy space who embed the calculators in their own articles.
HowMuchWatts's answer
Built out of frustration with existing energy calculators - they were either oversimplified, buried behind email walls, or impossible to verify. HowMuchWatts started as a handful of calculators that show their formula and grew into a 50+ calculator suite covering solar, heat pumps, EVs, and everyday appliances, plus guides and a reference chart for the underlying data.
Share your experience with using HowMuchWatts and Eclipse. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of HowMuchWatts yet. Be the first one to post
Eclipse, a pioneering platform in computer programming, was founded by IBM in the late ’90s. It offers an Integrated Development Environment (IDE) and supports various languages like Java, C++, Python, and more. With...
Extensive Plugin System: Eclipse offers an extensive plugin system that allows developers to customize their own features. It supports more than 100 programming languages, including Groovy, JavaScript, C++, and Python.
Eclipse is a community for individuals and organisations who wish to collaborate on commercially-friendly open-source software. Its projects are focused on building an open development platform comprised of extensible...
Recommendations tracked on public social media and blogs since March 2021.


Tracking HowMuchWatts since Jul 2026.
💡 You can still install extensions on vscodium using Open VSX Registry, which is an opensource project by Eclipse Foundation. - Source: dev.to / about 1 year ago
For example I can access eclipse.org in chrome without issue. I'm seeing my PA cert when I check it's trusted. However when I run the eclipse installer it fails which I suspect is because of the decryption. I'm seeing this log in the... Source: over 3 years ago
I think u/rayok's post is probably going to be your most relevant lead. Maybe it's a JRE related thing. I'd go ahead and reinstall eclipse from the eclipse.org download page rather than your OS app store. Maybe the JRE didnt get... Source: over 3 years ago
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