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It’s hard to wrap your head around how cheap solar is getting. Only get 1/4 as much sunlight? Just deploy 4x the panels!
by nilsbunger 2y ago
It’s hard to wrap your head around how cheap solar is getting. Only get 1/4 as much sunlight? Just deploy 4x the panels!
- JumpCrisscross 2y ago> Just deploy 4x the panels This is where we're having issues. Solar production is ramping up spectacularly. But if we're going solar only, we need to move our 2050 targets out.
- cowsaymoo 2y agoYes, globally we are pretty behind on our wind targets, which have much denser output per turbine than square unit of panels. It's important because the wrong land use changes can be self defeating for some carbon accounting scenarios.
- ellisv 2y agoI really want solar just to power my AC in the summer – any extra production would be bonus. However, the payback period is still too long for me to justify it.
- ericcumbee 2y agohave you looked at the mini split units by EG4 that take MC4 connectors straight in from a bank of PVs? it might be cheaper than you think.
- Scoundreller 2y agoI’m waiting for a refrigerator that does this and uses grid for backup/high demand. Refrigerator is an almost ideal use case because newer ones are inverter-drive and run around the clock. And inverter drive means it runs off DC at some level. A fridge is the one thing I really want to have work at some degree in a grid outage. Everything else I can work around pretty well.
- nilsbunger 2y agoOh that sounds useful. Basically bypass the grid and just power an ac directly. Do you have any examples of units like this?
- ericcumbee 2y agohttps://signaturesolar.com/all-products/high-efficiency-appliances/?_bc_fsnf=1&brand=66 https://signaturesolar.com/all-products/high-efficiency-appl...
- nilsbunger 2y agothat is awesome! Thank you
- oezi 2y ago2-4 years is too long? That's what it currently is in Germany where 1kwp now costs 350 EUR/USD including inverter.
- nojvek 2y agoRoof install in US with permitting is a loooooot more expensive. Around $2/watt. I’ve seen quotes of $50k for 10KW 24 panel array without batteries.
- oezi 2y ago20k EUR for 10 kwp including 8 kwh battery seems a new normal for roof installations. The batteries in particular are gotten much cheaper. < 2500 EUR for 8 kwh https://geizhals.de/byd-battery-box-premium-lvs-8-0-a2948979.html https://geizhals.de/byd-battery-box-premium-lvs-8-0-a2948979... Panels have reached incredible low prices. < 2000 EUR for 36 panels (16 kwp) https://geizhals.de/trina-solar-vertex-s-tsm-440neg9r-28-a3138406.html https://geizhals.de/trina-solar-vertex-s-tsm-440neg9r-28-a31...
- nojvek 2y agoSomething something US tariffs. The fact is US is pretty uncompetitive with China on solar and battery prices. Biden’s IRA helped but Trump is likely to repeal it. That would put US even back further.
- bigfatkitten 2y agoThat's insane. I'm in Australia, earlier this year I had 13.3kW (28 x 475W) installed for just under $6500 USD, and I got a 10 year interest free loan from the state government to pay for it. No battery at this stage. I produce enough excess energy during the day to largely offset what I use at night via feed-in tariffs. My power bill for last quarter was $15.
- polski-g 2y agoThat's how it is in Factorio as well!