People "are going to frost to death" owed to a deficiency of heating aft respective days without powerfulness pursuing Storm Darragh, a councillor has said.
Iwan Ward, a councillor for Boncath and Clydau successful Pembrokeshire, said residents had been without powerfulness since 02:00 GMT connected Saturday and warned it would not travel backmost until 22:00 connected Thursday.
Thousands of radical are inactive without powerfulness 3 days aft the tempest hit.
The National Grid called it "the biggest tempest our portion has faced successful decades".
Ward said radical were going to dice "not straight due to the fact that of the storm, due to the fact that of the deficiency of electricity, the deficiency of vigor and past deficiency of food".
"We request priorities for hospitals, schools thing similar that but we've besides got radical retired successful the countryside who are freezing to death, I'm bittersweet to say," helium said.
"People are going to frost to death, it saddens maine to accidental it but I fearfulness it's going to hap and we request things successful place."
According to National Grid, determination were astir 14,000 homes successful mid and southbound Wales inactive without powerfulness connected Tuesday morning, portion Scottish Power said determination were inactive 4,000 outages successful mid and northbound Wales connected Monday night.
Openreach confirmed astir 6,500 customers crossed Wales had their net work impacted arsenic a effect of Storm Darragh, with 40 telegraph poles and 50 overhead cables coming down successful the precocious winds.
In Heol y Glyn, adjacent Cymmer, Neath Port Talbot, radical said they had been without powerfulness since Friday.
Charlie Price, 67, said the concern was "terrible" and helium had taken his "ruined" Christmas nutrient to the dump.
"I'm a pensioner, I can't spend to suffer that," helium said.
"National Grid should person fixed this by now. Or they could person enactment a generator up here. It's disgusting, I'm furious."
His next-door neighbour, Carl Glave, said surrounding villages inactive had powerfulness but helium had "absolutely nothing".
"I'm lone conscionable coping due to the fact that I've got a log burner successful 1 country but the remainder of the location is freezing."
Meanwhile, sisters Nina and Terri Camplin said they were "distraught" but trying to enactment neighbours.
"It's freezing but we miss the airy due to the fact that that goes by 16:00 and candles don't springiness that overmuch light.
"We're eating acold nutrient arsenic good due to the fact that we don't person state and we've mislaid each the nutrient successful our fridge and our freezer.
"It's similar being backmost successful the war."
A leisure centre successful Llandysul, Ceredigion, has offered its facilities since Monday morning.
Calon Tysul said connected societal media radical could shower, complaint their phones and get lukewarm drinks,
Martin Spencer from the leisure centre said astir 25 radical had utilized the services.
"The smaller communities person been truly affected by the weather. I lone got powerfulness backmost astatine 03:00 this greeting truthful we didn't person immoderate for 3 days."
He said services would beryllium offered until the extremity of the week.
"We were fortunate that we didn't person immoderate tempest damage, truthful we stayed unfastened not conscionable for our members but besides arsenic a harmless haven for anyone."
Alun Jones, 82, from adjacent Henllan has been without powerfulness since Saturday.
He said "it's not precise nice" and "quite difficult" to beryllium without electricity.
He relies connected torches for airy erstwhile the evening comes, adding helium goes to furniture early.
Mr Jones said cipher from immoderate authorization had travel to sojourn him since helium mislaid power.
Gareth Lloyd, a councillor for Llandysilio and Llangrannog successful Ceredigion, said immoderate areas had been told powerfulness would beryllium backmost astatine 22:00 connected Tuesday, lone for that to beryllium pushed backmost to Wednesday oregon Thursday.
He told BBC Radio Wales Breakfast the assembly had opened centres wherever radical could spell for food, portion and warmth.
Power companies were going to contented a database of names from their susceptible database they had not been capable to interaction yet.
"Local councillors volition beryllium informed truthful we tin interaction them to marque definite they're alright," Lloyd added.
He pointed retired galore businesses were besides affected.
"It tin spell from being a nuisance to affecting your livelihood and your wellness arsenic well," helium said.
Roisin Quinn of National Grid said its engineers and enactment teams had been "working astir the timepiece to support powerfulness crossed the network".
She thanked customers for their patience, adding the squad was "doing everything we tin to get powerfulness restored crossed the portion arsenic soon arsenic possible".
The Porth Wen Solar Farm successful Anglesey was besides damaged successful the storm, with repair enactment and the replacement of damaged panels is expected to transportation connected into aboriginal adjacent year, EDF Renewables UK said.
"We are presently assessing the grade of the harm and conducting a controlled cleanable up," it said.
"Once the archetypal betterment efforts are implicit and the harm is afloat assessed, we volition transportation retired a afloat probe and erstwhile harmless to bash so, resume generation."