Coffee Maker. How Much Power for a Mobile, Marine, or Off-Grid Electrical System?
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- Опубликовано: 4 июл 2024
- This video will teach you how to figure out how much energy your coffee maker uses for a mobile, marine, and off-grid electrical system.
This is episode 2.1 in our Electrical System Sizing Playlist in the EXPLORIST.life Academy.
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00:00 Introduction
01:11 How much does a coffee maker use? The easy method.
02:16 How long does it take to brew a pot of coffee?
04:11 How much does a coffee maker use? The precise method.
06:08 Pro Tip! 
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Isn't .85kwh really 850wh instead of 85wh you used in your equation. Moving the decimal point three spaces to the right .85kwh=850wh. Love your vids.
I wonder, that would be 65AH to make coffee? Seems high but more realistic than 6.5 😂
New look Explorer life, new set, back to basics, new hair style, pro tip....and Academy 😂 ...... Academy 😂 😂
I have 4 cup Mr. Coffee drip coffee maker, model TF4. The label says 650 watts @ 120VAC. Using a Kill A Watt meter, the brew cycle used a constant 670 watts and took 6 minutes and 10 seconds (6.1667 minutes). 670 Watts * 6.1667 Minutes / 60 minutes in an hour = 68.86 Watt hours. The keep warm cycle used the full 670 watts running for 10 seconds every 3 minutes. I didn't keep track of the power usage of the keep warm cycles because those 4 cups of coffee are gone in short order.
Thanks. I hadn't done the official test on this model coffee maker, but this seems to be in line with the wattage used this past weekend through a totally non-scientific observation of my Bluetti display. Definitely would recommend the "gone in short order" method and turn off the coffee maker as soon as possible. Especially if doing so before any solar recharge is available. Didn't help that we had a really cloudy morning and I was not getting much charging from the panels I have on the roof until long after coffee was consumed.
Excellent timing! I ❤ the speed of your brew. Coffee makers require the same amount of maintenance as electric water heaters given the same source water. Vinegar and CLR or installing a new heating element is as costly as just buying bottled filtered water. I occasionally pick up and repurpose newer late model electric hot water heaters 2 X 1500-4500 watt elements. Here, and everywhere west, east, and south of the Rocky Mountains using ground water without a full home water treatment system will collect an inch or more lime deposits every year, I often find 4" inches in the bottom and new -ish elements completely insulated. Many people neglect to accurately monitor both the Electrical Consumption And Time. Five minutes on your coffee makers is amazing! Regardless of element wattage any lime scaled coffee maker will take up to twenty minutes to brew a pot. The dumps are full of new ones. ❤
Excellent explanation
I'd give up lights before coffee 😂. Thanks Nate & gang...
Hi Nate. as requested I found a Kurig style coffee pot that pulls 930.9 watts max to brew one 14oz cup.. I specifically searched for this one thru many.. so I could stop my Air conditioner, brew coffee, and go back.. my unit has a AC/Load cutout on a 2000 watt brand X inverter. its the Chefman Single serve K cup.. it pulls 930 Watts max, no warm for 14 oz cup, takes 2:40 and burns 36wh.. so 4 x 14 oz cups to a pot makes 144WH for 4 cycles.. but it also takes more time to prep.. we are looking for an insulated coffee pot that pulls around no more than 1000 watts with no warmer. The value in the smaller current draw is we can also plug it into an extension cord when leaching shore power or borrowed power and not slam the line/source, and it also doesnt overload our little 1600 generator. We often group when camping, and everyone leaches off one unit.. so I try to find stuff that pulls less than 1000 watts when able and use alot of ryobi tools / batts for other things.. but the coffee pot is essential enough that I cary a spare pot :) my system is 12v/640AH base and we will be updating to a Vic3k as soon as we can finish the design work.. keep up the great work
I have a Zojirushi coffee maker and tested it this morning. It takes about 650 watts and used 50wh. It does not have a keep-warm feature. Thanks for your explanation, this tells me I COULD take this with me and use with my bluetti if I wanted to 😁
Good morning!
👋🏼👋🏼
I’m loving the shorter videos!
Lol!! Gotta have coffee! Great job.... again
Most Important!
Keurig K-Mini 120 V, 1470 W, brew time 3:02 = 73.5 Wh / per cup of coffee.
* Brew time was from when the start button was pushed to when the unit stopped. There is no after brew warming.
I recently purchased an EcoFlow River 2 Pro using my K-Mini as a benchmark appliance that a power station MUST power.
Thank you both for the work you do.
But isn’t the Kerrigan only brewing one cup at a time. If you multiply your numbers by the number of cups you will brew isn’t that much more inefficient?
My dad has 4 x 175 watt flexible panels epever 60 amp TN series I think. 2,000 watt inverter busbars fuses on/off switch. Don't use much power fridge on propane camps off grid no phone charge or TV just 12v lights most importantly CPAP. Solar is separate plugs trailer plug into inverter. Only thing driving me crazy is running the solar charger positive and negative into battery through the same one going to the inverter didn't think electricity ran 2 ways on one wire.
We are at almost at 4 years of fulltime vanlife and use the coffee maker below:
Technivorm Moccamaster KBT
1400w (1289w) measured usage
Makes a full pot in 5 minutes
Stainless Steel Thermal Carafe with travel lid
Brews "Golden Cup Standard"
1.25 L / 40 oz. 10-cup
5 year warranty
How many watt hours?
107.4Wh
love my pour over coffee, so power usage is minimal ;)
that said, I'd still love to track usage better
Seems like many folks make the error of taking an appliance's stated wattage in marketing materials, such as a microwave, rather than the input power required off the appliance's label. My microwave is marketed as a "600" watt cooker, but the power consumed is 850, per the label. Also, if one is preparing a load table to size solar, inverter efficiency may be considered, in order to know what's actually drawn off a battery bank. So a 95% efficient inverter, for example, requires (850/.95) 895 watts off the batts. Thus, 600 vs 895 can make a big difference. The meter is best, of course, but its nice to be pretty close before buying the appliances.
Quick question: At 5:40 in the video, isn't the 0.85 kWh referenced 850 Wh? Or did I slip a digit....i.e. forget to carry / borrow?
You are right!
I use a cheap Walmart coffee maker that uses pods or you can use regular coffee. It does not use a lot of power, but with my Ecoflow Delta Max and Delta 1300 - I am good! : ) It does not keep warming - so I save there.
Give us some numbers! "Does not use a lot of power" is relative and doesn't paint much of a story.
A somewhat related question based on items that have significant power draw: On the internet you can find numerous videos of lithium powered devices {usually bikes or scooters, but sometimes cars and other things} burning fiercely or bursting into flames as they are being used. Like one video I saw recently was of a guy that was charging a scooter in his apartment and it caught on fire. Or another guy that just bought a high-performance electric bike and on its maiden voyage it started smoking and then just burst into flames as he was riding it. I assume this is because one or more cells short out, or in the case of charging, they may be overdriving the charge voltage and/or time of the batteries. The videos never explain what happened, they just show the results.
Considering the very considerable expense of a high-end van build {i.e. often $150K or even higher} AND considering the very high potential danger of a runaway lithium fire inside such a small living space, is there any way to predict or prevent seemingly random mishaps like that? Especially as you drive around with the batteries inside the vehicle over a long period of time and the individual cells are subjected to a veritable buffet of road vibration, shock and G force. And are there use-cases for electrical systems that tend to minimize these risks? Are there some cases that increase the risk? Like, is burdening a single 100AH battery {as shown in the example given in this video} with a fairly high-power consumption cycle, increase its temperature or likelihood to burn if something inside is marginal? Or, is there a risk increase of some type if I more than doubled my alternator charging rate from 40A to 100A using the new Victron parallel DC-DC charging units available now?
I don't use a coffee maker, but this is how I make coffee. I have a DCIGNA Electric Tea Kettle and boil water in it, then use a GSI Outdoors Pour-Over Java Drip I Travel Coffee Maker and a filter. It takes between 1:40 (Summer) and 3:20 (winter) to boil water. It takes 1000W (according to Amazon it is 800W but I have used this for 3 year and average is 1000W) during this time.
How many watt hours is that for both summer and winter?
Cuisinart DCC-450BK (4 cup coffee maker) 500W x 8 min. brew time = 67Wh.
You should try and add in the loss of an inverter. I got quite spuprised to see a loss of around 1 kw when making around 3 kw on the muliplus. This was from 12v t0 230v so as bad as it get, however maybe a video for you to make, what the loss of inverting Furthermore does an inverter have a sweetspot to much effeicent to work within
We will cover more complicated topics like inverter inefficiencies later in this academy. Stay tuned! Gotta cover the basics first.
We use Melita filters and heat the water on the stove - drip method!
Do you have any other electric appliance like an air fryer, toaster, blender, etc that you can check your learning with? Try it out and let us know.
Marine environment - propane for cooking. All systems are 12 volt. I do have a 300W inverter, which I have used at times. Biggest draw, on an ongoing basis are the DC refrigeration 2.5 to 5 amps and autopilot when underway! Currently have gone to lithium batteries for house bank and a new AGM for starting. Using Victron products and some of your gear for connecting shunt to Lynx Distributor. I have an electronics and software engineering background (Telecom); enjoy the information you present!
thanks NAte, I use an Espresso cofe maker. Yea... I am that one guy who is different hahaah thanks again for the awesome wisdom.
sean from Montreal
Nice! The concept will be the same. How many watt hours does it take for you to make an espresso?
@@EXPLORISTlife so using the formula, my espresso consumes 1200watts. so x ,45sec = 9wh. Convert to ah = ,75ah. not to shabby but I would have to repeat this many time during the morning since I am a espresso junky. hahah THANks Nate love your content.
I am using a 12v system and I would love to be using a 24v system. I am just invested in my system to convert at this time. Maybe the next 5th wheel.
Coffee is the elixir of life! That’s way too much math! What if I just use my Anker and read it off of the screen?
Ultimately, you are free to do whatever you want. If you don’t want to learn this stuff, that’s fine and I appreciate you watching anyway, I suppose. 💁😂
Delonghi Specialista Arte Espresso Machine, that’s quite a mouthful for a name 😂
1550 watts x 1 minute = 25 wH for an Americano coffee.
Bonavita 5 cup , insulated carafe, 1100 watts 6 minutes = 110
My toaster draws 900 watts. It takes 2 minutes to make 2 slices of toast, so we made 6 slices of toast. 900 x 2 minutes 3 times = 5400 watt minutes divided by 60 =90 watt hours.
How would one do this on a 12vdc compressor fridge (or any 12vdc powered item)? I'd love to have a setup that records a real camping trip so I can get an idea of how much energy it really uses and/or is using (camping in the cool mountains of NYS vs hot Arizona or Florida).
how I did it was to get a clamp on DC capable amp meter or loop meter and find the main feed line under the fridge and clamp it on. A DC capable clamp multi meter is more expensive but a worthy investment, I know Nate has one too, seen it on some vids.. That all being said, if you have a shunt installed in the system, you can stop the charger, get to a baseline current, and measure it.. but with a fridge you have to consider ramp and cycle time.. its the same principal as the coffee pot.. power up, cooling then maintenance cycle.. And there is a huge variance depending on the environmental conditions.. hot and humid is much harder than cool and dry.. I have a mid size 12v compressor fridge and it pulls around 3 to 5 amps average day time, and 2 to 3 in nighte mode. fwiw.. my victron shunt tells that story too.. thats how I measure most of the 12v as installed.. close enough..
I love this channel, its so full of amazing stuff.. thanks Nate & Steph.. PS.. I will also give up power for coffee first too.. I often kid around that i live in a solar powered coffee pot
I am new to your site Nate. Do you have a consulting capability, I would like to design a system that can grow as I either have time or funds. Looking at a 50 amp system for my fiver. Would like to start with one multi plus and eventually add another. Thank you
Mine is a Walmart model 512841 120v 900w with a 1 hr. Keep warm cycle. 8 cup capacity.
Very good! That's the first part of the equation.
Now you can figure out 'duration' and figure out how many watt hours in a brew cycle and keep warm cycle use. Let me know when you figure out your final result.
Okay, I have a 9-minute brew cycle. 900w x 9= 8,100÷60=135 wh. Keep warm cycle 81 wh. Total 216 wh/12v= 18 ah or 18% of a 100 ah battery.
Am I close?.
Thermal carafes do better flying around the van while in transit too!
True!!
Can you send me where you give a site to build a 24 volt system.
Of course! shop.explorist.life
I just use a percolator on the stove uses hardly any propane
What? 0,84 kWh is 84 Wh? I thinked thats 840 Wh…
Great video. I actually did that last month the exact way both steps. Yikes my home office uses 1.4kW each day. Not counting internet modem. Hum I will have to rethink my power when boondocking. I will need a genny AND more solar that I have at a humble 300w. I like your solution of two charge controllers but ouch that must have been spendy. Not sure my brand has that ability to work in tandem. Thank you for the video.(✿◡‿◡) (¬‿¬) (‾◡◝)
After watching your video, it reminded us about our own coffee dilemma. How to make hot coffee in a van? According to the web, our Mr. Coffee uses 1300 watts. So we ran a quick test to see how it effected our Pecron power station. It took 1350 watts for 7 minutes which used 1% of our power. COFFEE IS A GO! ruclips.net/video/QMkNZKsP-wU/видео.html
A Nespresso is far more efficient. And much better coffee ☕😊
Is it more efficient? I don’t see your numbers/calculations.
As far as ‘better coffee’ as long as it’s hot and black, it’s good with me. 😂
Dude! Try notto say “Google” during your videos! You set off my Google Home searching for and playing some arcane explanation, when I canceled it, it also closed the Chromecast, which turned off your video!
😂😂😂