All the electronics, singular or plural?

To some extent you are right. 'Agenda' is also a plural, but people nonetheless say 'The Agenda for the Meeting is in the hand-out', not 'The Agenda are in the hand-out'.

However, I don't really see what it has to do with abstract nouns. I am not even sure that 'data' is an abstract noun. Two of the nouns you mention 'love' and 'temperature' have plurals which are still abstract, in any case.

But take an abstract noun like 'vibes'. It seldom has a singular. I have rarely heard anyone speak of a 'vibe'. Are you suggesting we should say 'The vibes is strong that he is the guilty party'.

Consumption is a mass noun which does not have a plural form. So, the answer is to use "consumption".

https://en.oxforddictionaries.com/definition/consumption indicates that consumption is a "[mass noun]".

https://en.oxforddictionaries.com/grammar/countable-nouns explains what a mass noun is. "Nouns can be either countable or uncountable. Countable nouns (or count nouns) are those that refer to something that can be counted. They have both singular and plural forms (e.g. cat/cats; woman/women; country/countries). In the singular, they can be preceded by a or an. Most nouns come into this category. A smaller number of nouns do not typically refer to things that can be counted and so they do not regularly have a plural form: these are known as uncountable nouns (or mass nouns). Examples include: rain, flour, earth, wine, or wood. Uncountable nouns can't be preceded by a or an. Many abstract nouns are typically uncountable, e.g. happiness, truth, darkness, humour."