Hullo all, please play nice as I have often struggled to negotiate the bible-sized, yet unwritten rule book on web fora. I'm in the mid to late late stages of a fit-out and am currently 100% solar powered. We have 1Kw and are generally as low drain as possible. Unfortunately, we love some of the modern toys and are proud owners of mains voltage fridge freezer and washing machine, bought with the belligerent intent to power somehow...
We are, of course, fully off-grid. 8 months of the year we are fine, we turn on 2.5k inverter in the morn and off at night. But, as they say- Winters coming... Last year, off went the fridge and we scraped by- please no suggestions about engines or generators, I'm looking at some very interesting alternative renewables but want to cut down the load through the day.
Crux point- Am going to buy a 300w sine-wave inverter to dedicate to the fridge and fit an appropriately sized timer switch so the batteries get more uninterrupted charging time and all stays cool. Am I correct in thinking, given a nominal efficiency of 95% that under the same load the small inverter will draw less power than the big?
Thoughts, suggestions and electronic insights please.