Social Bonus. Iberdrola Electricity Discount for Low Income ( Pensioners, Covid Affected,) Also Large Families ie more than 3 children.

https://www.curenergia.es/social-bonus

It is easy to apply online or at Iberdrola office. On the first page is a chart showing annual income levels below which you can claim. Also when you start to fill it in you will be shown the monthly limits below which you can apply.

(If you are receiving UK pension and Attendance allowance, remember that they are paid 4 weekly so you will have to multiply them by 13 and divide by 12 to get the monthly figure.)

The discount is normally 25% (vulnerable) but can be 40% (severley vulnerable) for people on a very low income.
The income limits vary according to family size and special circumstances;

including single parent, disability more than 33% if you have a disability card from Alicante, or Dependency grade 1 or 2 if you have this on an “Informe de salud para reconocimiento de prestaciones sociales)The latter, an assesment of your disability is done by the nurse and doctor at your Health Centre.

Large Families and Pensioners receiving a Spanish pension can get the 25% discount without proving income, but can claim the 40% discount if they fall below the income limits.

Remember British pensioners will have to show income with a P60.

Also if you do not have a libro de familia, you will need to get a certificate of Fe de Vida to show you are alive. You can get these from the courts or townhall ( see link below for town hall appointments.)

Obtaining Volante de Empadronamiento from Benidorm and other.
Most benefit claims need a volante de empadronamiento, generally the historico with all family members listed on it. You can do it online if you have cl@ve at this link. https://sede.benidorm.org/catalogo-de-servicios

or making an appointment for using this link ( also for making appointment for other council services except PROP office)

https://benidorm.org/es/cita-previa#services