Both sides previous revision
Previous revision
Next revision
|
Previous revision
Next revision
Both sides next revision
|
electrical:12v:intro [2019/05/07 23:08] frater_secessus [Table] |
electrical:12v:intro [2019/05/07 23:26] frater_secessus [Table] |
===== sources of house power ===== | ===== sources of house power ===== |
| |
^ ^ Pro | **Con** | | ^ ^ Pro | **Con** | |
| [[electrical:shore_power|shore power]] | cheapest per watt \\ simple \\ abundant power | often not available \\ if available you are tied to the outlet by your cord/adapter \\ campgrounds with outlets are more expensive | | | [[electrical:shore_power|shore power]] | cheapest per watt \\ simple \\ abundant power | often not available \\ if available you are tied to the outlet by your cord/adapter \\ campgrounds with outlets are more expensive | |
| [[electrical:solar|solar]] | automatically makes power when the sun shines \\ makes high voltages needed to fully charge lead-acid batteries | most expensive per watt \\ can be complex\\ panels are large\\ output drops dramatically when shaded | | | [[electrical:solar|solar]] | automatically makes power when the sun shines \\ makes high voltages needed to fully charge lead-acid batteries\\ silent\\ lasts for decades | most expensive per watt \\ can be complex\\ panels are large\\ output drops dramatically when shaded | |
| [[electrical:12v:alternator|alternator]] | automatically makes power when driving | relatively low charging voltage((unless b2b)) \\ can result in damage from [[electrical:12v:psoc|chronic undercharging]] \\ should not idle to charge \\ most people don't drive enough to fully charge lead-acid | | | [[electrical:12v:alternator|alternator]] | automatically makes power when driving\\ about 1/10th the cost of solar for the same current output | relatively low charging voltage((unless b2b)) \\ can result in [[electrical:12v:psoc|chronic undercharging]] \\ should not idle to charge \\ most people don't drive enough to fully charge lead-acid | |
| [[electrical:generator|generator]] | can make 1000w+ of 120v \\ can run for days \\ inverter models are quieter | can be expensive ($1000+) \\ maintenance \\ needs to be stored when not in use\\ noisy \\ not allowed in some areas/times | | | [[electrical:generator|generator]] | can make 1000w+ of 120v \\ can run for days \\ inverter models are quieter | can be expensive ($1000+) \\ maintenance \\ needs to be stored when not in use\\ noisy \\ not allowed in some areas/times | |
| |
| [[electrical:12v:alt_and_solar|Alternator & solar charging]] enhance each other when used together. Adding alternator charging to solar can significantly reduce [[electrical:solar:sizing|the amount of solar required]] to meet your needs. |
| |
Note: So-called [[lifestyle:faq_solar_generator|solar generators]] **do not generate power**: they are battery banks, usually AGM or lithium. See below. | Note: So-called [[lifestyle:faq_solar_generator|solar generators]] **do not generate power**: they are battery banks, usually AGM or lithium. See below. |
^ ^ Pro | **Con** | | ^ ^ Pro | **Con** | |
| [[electrical:12v:deep_cycle_battery#flooded_lead_acid|Flooded lead-acid]] (FLA) | cheapest per Ah \\ most tolerant of abuse | lowest current throughput \\ maintenance ("watering") required \\ can only use 50% of rated capacity((or longevity suffers)) | | | [[electrical:12v:deep_cycle_battery#flooded_lead_acid|Flooded lead-acid]] (FLA) | cheapest per Ah \\ most tolerant of abuse | lowest current throughput \\ maintenance ("watering") required \\ can only use 50% of rated capacity((or longevity suffers)) | |
| [[electrical:12v:deep_cycle_battery#agm|Sealed lead-acid]] (SLA, AGM) | able to charge/discharge more current than FLA | more expensive per Ah((~2x the price of FLA)) \\ cannot check or replace electrolyte | | | [[electrical:12v:deep_cycle_battery#agm|Sealed lead-acid]] (SLA, AGM) | able to charge/discharge more current than FLA\\ no maintenance required | more expensive per Ah((~2x the price of FLA)) \\ cannot check or replace electrolyte | |
| [[electrical:12v:deep_cycle_battery#lifepo4|LiFePO4 (LFP) lithium]] | very close to normal 12v ranges \\ available as "drop-in" replacements for lead-acid\\ current throughput \\ can be more deeply discharged than lead-acid | most expensive upfront per Ah\\ cannot be charged in freezing temperatures | | | [[electrical:12v:deep_cycle_battery#lifepo4|LiFePO4 (LFP) lithium]] | very close to normal 12v ranges \\ available as "drop-in" replacements for lead-acid\\ current throughput \\ can be more deeply discharged than lead-acid | most expensive upfront per Ah\\ cannot be charged in freezing temperatures | |
| [[electrical:12v:deep_cycle_battery#non-lifepo4_lithium-ion|Non-LFP lithium]] | cheaper than LFP per Ah \\ current throughput | thermal runaway \\ voltage not well-suited for 12v systems | | | [[electrical:12v:deep_cycle_battery#non-lifepo4_lithium-ion|Non-LFP lithium]] | cheaper than LFP per Ah \\ current throughput | thermal runaway \\ voltage not well-suited for 12v systems | |
| |
The battery bank is sized to meet your [[electrical:solar:gentle_intro#daily_power_needs|daily power needs]] and as well as any extra margin you might like. | The battery bank is sized to meet your [[electrical:solar:gentle_intro#daily_power_needs|daily power needs]] and as well as any extra margin you might like. |