function conso09()
    {	//calcul de la conso chauffage 2009
 	$params = JComponentHelper::getParams('com_batenergie');

    			// Load the data
			$query = ' SELECT * FROM #__batenergie_objects '. 
                    '  WHERE id = '. $data->id ;
			$this->_db->setQuery( $query );
			$this->_data = $this->_db->loadObject();
	//calcul
	$total = ($this->_data->dpe09_fioul * $params->get('kwhx_fioul', 1) )
		+ ($this->_data->dpe09_gas * $params->get('kwhx_gas', 1))
		+ ($this->_data->dpe09_gasp * $params->get('kwhx_gasp', 1))
		+ ($this->_data->dpe09_elec * $params->get('kwhx_elec', 1))
		+ ($this->_data->dpe09_boisp * $params->get('kwhx_boisp', 1))
		+ ($this->_data->dpe09_boisg * $params->get('kwhx_boisg', 1))
		+ ($this->_data->dpe09_boisb * $params->get('kwhx_boisb', 1));

		return $total;
    }